INTRODUCTION.

Tuis Volume contains the enumeration of the rest of the species of the subfamily

Curculionine (under which the Cossonids are here placed) and the whole of the

subfamily Calandrine. The Appendix to the Curculionine was required to include

such species as had been overlooked or wrongly placed in the general sorting of the

collections, or that had come to hand too late to be inserted in their proper places,

one holarctic group, the Gymnetrina, being thus added to the Mexican fauna.

The preceding Volume of this series, Coleoptera, IV. part 6, is devoted to the

families Brenthide, Scolytide, and Anthribide, and the general sequence of the

arrangement of the Rhynchophora has thus been interrupted: species included in

the present Volume, ‘“ Coleoptera, IV. part 7,” should of course follow those

enumerated in “ Coleoptera, IV. part 5.”

The subfamily Calandrine is represented within our limits by a large number

of species, some of them (Cactophagus, Phyllerythrurus, Eucactophagus, Metamasius,

Rhodobenus, &c.) being very conspicuous brilliantly-coloured insects. Sphenophorus,

sensu stricto, includes many destructive North-American species, but it is poorly

represented south of Mexico. It is probable that some of the Eastern genera of

this subfamily named by Chevrolat and others will prove to be inseparable from

Metamasius; but no attempt has been here made to identify them. Calandra

granaria, C. oryze, &c. are carried about everywhere by commerce, and other

species are often introduced in imported plants. The larger exotic forms attack

palms, Cactaceze, Amaryllide, Liliacee, Musacee, maize, &c.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. b

vi INTRODUCTION.

Remarks on the three remaining groups of the subfamily Curculionine, the

Acamptina, Trypetina, and Cossonina, will be found in their respective places in the

following pages.

The material belonging to the U.S. National Museum, the Royal Museum at

Dresden, and Signor A. Solari, of Genoa, has been examined, and we are again

indebted to the last-named gentleman for various species not represented in our

collection. ‘The types of the Mexican and Central-American species described by

Gyllenhal, Boheman, Fahreus, and Chevrolat have been kindly communicated by

Dr. Sjéstedt for examination, these being supplemented by a few others in the Sommer

Collection lent by Mr. O. E. Janson. Prof. F. H. Chittenden, too, has sent us

co-types of nearly all the North-American Sphenophori described by himself for

comparison with the Mexican forms.

Altogether 344 species are enumerated in the present volume (193 of which

belong to Curculionine—bringing the total for this subfamily to 2466—and 151 to

Calandrine), with seventeen new genera.

The nine coloured or partly coloured Plates have been drawn and lithographed, as

before, by Mr. E. Wilson, of Cambridge.

G. C..G,

October 1910.

ERRATA ET CORRIGENDA.

Page Line

58 8 For “The C. parvicollis” read C. parvicollis,

80 16 for Brazil?°+ read Brazil? *.

80 17,18 ‘The remarks as to ‘the introduced example found at Boston” refer to

R. noxius and not to D. germari as stated.

102 23 For Matamasius read Metamasius.

BIOLOGIA CENTRALI-AMERICANA.

ZOOLOGIA.

Class INSECTA.

Order COLEOPTERA.

Tribe RHYNCHOPHORA.

Fam. CURCULIONIDA.

Subfam. CURCULIONINZ (continued) * t.

Group ACAMPTINA.

Cryptorhynchini, Group II. Acampti, Leconte.

To this group Leconte and Horn referred a single N.-American genus, Acamptus,

at the same time calling attention to its relationship with the Byrsopides and

Cossonides. ‘The new genera now added from within our limits, particularly Cheror-

rhynchus, show such a decided affinity with various members of the last-mentioned

group that they seem to me to be best placed near the Cossonina and Trypetina. The

“ Acamptina” have the rostrum stout and deflexed, its basal portion received in a deep

groove in the prosternum and its apex resting on the narrowly separated anterior

coxe ; the prothorax projecting over the head anteriorly ; the third tarsal joint

simple ; the funiculus 5-, 6-, or 7-jointed; and the body more or less setose and lutose.

The four genera may be separated thus {:—

Funiculus 5-jointed ; antennal club with the basal joint shining and very

sparsely pilose; tarsirather stout. ©. 2. 6 1 6 1 + ee es ACAMPTOPSIS.

Funiculus 6-jointed ; antennal club with the basal joint shining and very

sparsely pilose; tarsi rather stout. . . 2 ee + ee ee es PsEUDACAMPTUS.

* By G. C. Cuampion.

+ In a preceding volume of this subject a recorded Central-American Hylobiid was omitted, viz. Ischiomastus

marginatus Faust (Stett. ent. Zeit. 1893, p. 10), from Costa Rica and Colombia. This insect, the 9 type of

which I have seen, is certainly congeneric with Liwomorpha albomarginata, Champ. (B. C.-A., Coleopt. iv. 4,

pp. 63, 719), also from Costa Rica, and, like it, differs from typical [schiomastus (plinthoides, Kirsch, torulosus,

Faust, &c.) in having the mentum and anterior coxe unarmed in the ¢. Jnxomorpha (1902) must be sunk

as a synonym of Ischiomastus, Kirsch (1889).

+ Paracamptus, Casey, and Acamptoides, Ch., have a complete rostral canal, a bilobed, pubescent third tarsal

joint, &c., and they do not belong to this group.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1909. BB

2 RHYNCHOPHORA.

Funiculus 7-jointed.

Antennal club with the basal joint shining and very sparsely pilose ; tarsi

rather stout ©. 6. ee ee ee ee eee ee. LAcAMp rus. ]

Antenual club closely pubescent, larger; tarsi slender. . . . . . . CHa@RorRuYNCHUs.

ACAMPTOPSIS, gen. nov.

Head deeply inserted into the prothorax ; eyes inferiorly placed, large, hidden in repose; rostrum deflexed,

short, very stout, feebly curved, the tip resting on the anterior coxe, the scrobes deep and oblique, the

antenne inserted at the middle, the funiculus 5-jointed, the club small, ovate, with the basal joint

shining and the others very short and densely pubescent ; prothorax subtubulate and cucullate in front,

feebly bisinuate at the base, and emarginate at the apex beneath; scutellum prominent, small ; elytra

much wider than the prothorax, oblong-subtriangular, feebly sinuate at the base, abruptly produced at

the apex ; prosternum broadly and deeply sulcate from the apex to the narrowly separated anterior coxe ;

ventral segments 3 and 4 short, together a little shorter than 5; legs short and stout; tibie strongly

unguiculate at the outer apical angle; tarsi with the third joint simple, the claws divergent ; body

oblong, densely lutose, and also set with short clubbed sete.

Type, A. encaustus.

The 5-jointed funiculus, the somewhat curved rostrum, and the relatively shorter

third and fourth ventral segments distinguish this genus from the following, Pseuda-

camptus, ‘The type is from Panama, and a second species is found in Cuba*, The

sculpture in both of them is in great part hidden by the dense earthy incrustation.

1. Acamptopsis encaustus, sp. n. (Tab. I. figg. 1, 1 a-c.)

Oblong, somewhat flattened above, nigro-piceous, the antenne and tarsi ferruginous; densely coated with a

brown earthy incrustation, and also sparsely set with short, rather stout, clubbed, suberect sete (which

extend to the rostrum, antennal scape, and legs), those on the elytra uniseriately arranged along each

interstice, the last joint of the funiculus also with several very long projecting sete. Head, rostrum,

and prothorax densely, finely punctate, the prothorax with a well-marked subapical constriction.

Elytra seriate-punctate, the interstices somewhat raised and densely punctulate.

Length 23, breadth 1, millim. (9 ?)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Smaller and less robust than Pseudacamptus plurisetosus, the sete

not so stout, &c.

* Acamptopsis cubanus, sp. n.—Oblong, nigro-piceous, the tips of the tarsi ferruginous; covered with a

brown earthy incrustation, and also sparsely set with short clubbed sete, those on the elytra uniseriately

arranged along each interstice. Rostrum very stout, rugose, about as long as the posterior portion of the

prothorax as seen in profile. Prothorax as long as broad, abruptly constricted towards the apex, the

posterior portion rounded at the sides, the tubulate apical portion also rounded in front as seen from

above; densely punctate. Elytra moderately long, gradually narrowed from the base; seriate-punctate,

the interstices somewhat raised. Beneath alutaceous, rather sparsely punctate ; first ventral segment

somewhat concave. Tibie broad, each with a long apical uncus, which is widened towards the base.

Length 3, breadth 14 millim. (<¢.)

' Hab. Cusa, Cayamas (Schwarz, in U.S. Nat. Mus.).

One specimen. A little more oblong than -A. encaustus, the rostrum longer, the prothorax rounded at the

sides and strongly constricted towards the apex, the elytra less widened at the base.

PSEUDACAMPTUS.—CH@RORRH YNCHUS. 3

PSEUDACAMPTUS, gen. nov.

Head deeply inserted into the prothorax, large; the eyes inferiorly placed, hidden in repose; rostrum

deflexed, the tip resting on the anterior cox, very stout, short, parallel-sided, nearly straight, with

deep, oblique scrobes, the antenne inserted at about the middle, the funiculus 6-jointed, the club abrupt,

small, ovate, with a shining, subglabrous basal joint and the other joints very short and densely

pubescent; prothorax subtubulate and cucullate in front, feebly sinuate at the base, and deeply

emarginate at the apex beneath; scutellum small, oblong-subquadrate, flat; elytra much wider than the

prothorax, subtriangular, sinuate at the base, their apices strongly declivous and abruptly produced ;

ventral segments 3 and 4 short, together about as long as 5; prosternum broadly and deeply excavate

from the apex to the narrowly separated anterior coxe; legs stout; tibie sinuous within, strongly

unguiculate at the outer apical angle and mucronate at the inner angle; tarsi sparsely pilose beneath,

the third joint simple, the claws divergent and widely separated; body oblong, densely lutose and also

thickly set with stout clubbed sete.

Type, P. plurisetosus.

The Mexican insect from which the above characters are taken is nearly related to

the N.-American genus Acamptus, Lec., but the funiculus is 6-jointed *, the elytra are

more sinuate along the basal margin and have more prominent humeri, and the

clubbed setz extend along each interstice. The sculpture is almost entirely hidden

by the vestiture.

1. Pseudacamptus plurisetosus, sp.n. (Tab. I. figg. 2, 2 a-c.)

Oblong, somewhat flattened above, opaque, alutaceous, nigro-piceous, the antenne ferruginous; densely

incrustate with brown scales and also thickly set with short, stout, erect, clubbed sete (which extend to

the legs, rostrum, and antennal scape), those on the elytra uniseriately arranged down each interstice,

the last joint of the funiculus also with several long projecting sete. Head and rostrum densely, finely

punctate. Prothorax about as long as broad, slightly rounded at the sides from the well-marked

subapical constriction to the base, the tubulate portion nearly half the length of the posterior portion ;

closely punctate. Elytra moderately long, seriate-punctate, the interstices feebly convex, 3 and 5, and |

(sutural) towards the apex, distinctly raised. Beneath sparsely punctate.

Length 32, breadth 13 millim.

Hab. Mexico, “Sierra de Durango” (ea coll. Flohr).

One specimen, probably from the State of Vera Cruz. The sete in this species are

much stouter than in Acamptus rigidus (for an example of which we are indebted to

Mr. Wickham), and those on the elytra are not confined to the alternate interstices, as

in A. rigidus and A. echinus.

CHGRORRHYNCHUS, gen. nov.

Head deeply inserted into the prothorax, large; eyes inferiorly placed, almost hidden in repose; rostrum

deflexed, the tip resting on the anterior coxe, very short, stout, and parallel-sided, feebly curved,

somewhat depressed at the base, the scrobes deep and obliquely descending, the antenna inserted slightly

beyond the middle, the funiculus 7-jointed, joints 3-7 strongly transverse, widening outwards, the club

rather large, ovate, and closely pubescent, its basal joint shorter than the others united; prothorax

subtubulate and cucullate in front, feebly sinuate at the base, and deeply emarginate at the apex beneath;

* Acamptus rigidus, Lec., has the funiculus 7- {not 6-, as stated by its describer) jointed, a fact already

pointed out by Casey (Ann. N. York Acad. Sci. vi. p. 446),

BB 2

4 RHYNCHOPHORA.

scutellum small, subtriangular, flat; elytra elongate-subtriangular, subtruncate at the base, much wider

than the prothorax, their apices strongly declivous and produced; prosternum broadly and very deeply

sulcate from the apex to the narrowly separated anterior coxe; ventral segments 3 and 4 extremely

short, together very little more than half the length of 5; legs short, the femora and tibis stout, the

tibie almost straight, strongly unguiculate at the outer apical angle, and toothed at the inner angle ;

tarsi with a few hairs beneath, slender, the third joint slightly excavate above for the reception of the

base of the fourth, scarcely wider than the second, the claws divergent; body elongate, opaque, setose,

the depressions of the surface lutose.

Type, C. tenuatarsis.

This genus is easily separable from its allies by the very slender, short tarsi; the

7-jointed funiculus; the large, ovate, closely pubescent antennal club, with a com-

paratively short basal joint; the basally depressed rostrum; the very deep, almost

glabrous prosternal sulcus ; the extremely short third and fourth ventral segments ;

and the opaque, alutaceous, finely setose surface of the body. ‘The type bears a

certain resemblance to the European Cherorrhinus squalidus, Fairm.

1. Cherorrhynchus tenuitarsis, sp. n. (Tab. I. figg. 3, 3 a-c.)

Elongate, rather narrow, somewhat flattened above, opaque, alutaceous, nigro-piceous, the antenne obscure

ferruginous ; sparsely clothed with fine, erect, pallid, blunt sete, those on the elytra uniseriately arranged

along each interstice, the depressions of the surface filled with a brownish incrustation. Head and

rostrum densely, finely punctate. Prothorax about as long as broad, slightly rounded at the sides, the

subtubulate anterior portion narrower; closely punctate. Elytra long, obliquely narrowing from the

base, blunt at the apex as seen from above; seriate-punctate, the interstices feebly convex, flatter on

the disc. Beneath sparsely punctate.

Length 33, breadth 14 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen, sex not ascertained.

Group TRYPETINA.

Trypetides, Lacordaire ; Trypetini, Leconte and Horn.

Of the three genera referred to the Trypetina by Lacordaire, one, Vanus, Schénh.

(= Homaloxenus, Woll.), is represented within our limits. This group is placed by

him near the “ Antliarhinides,” and by Leconte and Horn near their “ Derelomini.”

It seems to me that its proper position ought to be near the Cossonina—Wollaston, in

fact, included Homaloxenus * with some doubt amongst them, at the same time calling

attention to the distinctly annulated antennal club, the strongly bilobed tarsi, the

dentate femora f, the feebly unguiculate tibie, &c., as not being in accordance with

the usual modifications of the Cossonid type.

Hoplorrhinus, Chevr. [provisionally placed under a separate group, Hoplorrhinina,

in a preceding volume of this series, Coleopt. 1V. pt. 4, pp. 277-279 (1903)], the

* His description is based on the male only.

tT Some true Cossonids from New Zealand have strongly dentate femora.

TRYPETINA.—NANUS. 5

contiguous anterior coxe notwithstanding, would perhaps be better included under the

Trypetina, a nearly allied genus (Hoplorrhinoides) with the anterior coxe as widely

separated as in Nanus being now known, all these insects having the rostrum

somewhat similarly formed and differing greatly in the two sexes. Hoplorrhinus* and

Hoplorrhinoides include various subopaque elongate forms, which not only resemble

Derelomus in colour and sculpture, but are of similar habits, species of each of these

three genera being found upon the male-flowers of palms. Nesoticus, Perkins, from

the Hawaiian Is., an insect living in the wood of Cheirodendron (order Araliacez), and

Spheracus, Faust, from Brazil, referred to the Cossonina and Cholina respectively by

their describers, seem also to belong here.

NANUS.

Nanus, Schénherr, Gen. Cure. viii. 1, p. 89 (1844) ; Lacordaire, Gen. Col. vu. p. 179 ; Leconte

and Horn, Class. Col. N. Am. 2nd edit. p. 484 (1883).

Homaloxenus, Wollaston, Trans. Ent. Soc. Lond. 18738, pp. 436, 470, 552 (3) ; Leconte, Proc.

Am. Phil. Soc. xv. p. 338 (1876).

The sexual characters are so marked in this genus that, as Lacordaire states, the

males and females might be taken as belonging to different genera: in the former sex

the rostrum is long, almost straight, and opaque, and the antenne are inserted near

the tip, and in the female the rostrum is short, slender, curved, and almost smooth,

and the antenne are inserted at its middle.

Two species inhabit Central America,

1. Nanus uniformis. (Tab. I. figg. 4,44, 6; 5, 2.)

Nanus uniformis, Boh. in Schénh. Gen. Cure. viii. 1, p. 90 (3 2 )*; Lec. & Horn, Class. Col.

N. Am. 2nd edit. p. 484°.

Homaloxenus dentipes, Woll. Trans. Ent. Soc. Lond. 1878, p. 615 (¢)*; Lec. Proc. Am. Phil.

Soc. xv. p. 338 (1876) (2) °.

Hab. Nortu America, Florida 24.—Mexico, Tlacotalpam near Vera Cruz (Hoége).—

ANTILLES, Cuba 1, Puerto Rico 1, San Domingo ®.

Sent us in numbers from Vera Cruz, these specimens agreeing with others before

me from the above-quoted Antillean localities. The elytra often have a black patch

on the disc beyond the middle. The femora are dentate in the male and almost

unarmed in the female. WV. wniformis is described as glabrous, but the types must

have been abraded. The Colombian WV. punctellus, Boh., is said to be clothed with

whitish pubescence and to have the disc of the prothorax flat.

* Specimens of H. crispus, from Cacao, Trece Aguas, Alta Vera Paz, Guatemala (Schwarz and Barber),

have recently been sent to me for determination by the U.S. Nat. Museum. The two examples described by

me were both of the female sex (not ¢ and @ as stated): the male (as is that of H. meaicanus) has a

straighter, stouter, carinate, rugosely punctate rostrum, the antenne inserted towards the tip, and the

metasternum and first ventral segment broadly excavate.

6 RHYNCHOPHORA.

2, Nanus hispidus, sp.n. (Tab. I. figg. 6, 6a, ¢; 7, 2.)

Elongate, depressed, moderately shining, the rostrum opaque in the ¢, black or piceous, the shoulders

or basal portion of the elytra, antenne, tarsi, and base of the femora more or less rufescent ; very finely

and sparsely pubescent, the prothorax and elytra also somewhat thickly clothed with decumbent,

ochreous sete, those on the elytra uniseriately arranged down each interstice, the under surface with an

extremely fine sericeous pubescence. Head densely, minutely punctate ; rostrum (¢ ) usually as long as

or longer than the head and prothorax, almost straight, parallel-sided to near the tip, and densely

strigoso-punctate, (9) slender, arcuate, not longer than the prothorax, shining, and almost smooth.

Prothorax broader than long, somewhat rounded at the sides, abruptly constricted in front, broadly

depressed down the middle of the disc ; densely, shallowly punctate, the narrow interspaces alutaceous.

Elytra elongate, much wider than the prothorax, punctate-striate, the interstices feebly convex, densely,

minutely punctate, and each with a row of larger, asperate, setigerous impressions. Beneath very

densely, minutely punctate. Metasternum deeply sulcate down the middle for the apical two-thirds of

its length. Legs elongate ; femora in both sexes strongly clavate and very sharply dentate.

Length 3-42, breadth 1-1? millim. (¢ 9.)

Hab. Panama, Bugaba, Tolé (Champion).

Numerous examples, males predominating, the latter varying greatly in size and in

the length of the rostrum. Immature examples are entirely ferruginous. ‘This species

is separable at once from N. uniforms by its setose elytra.

HOPLORRHINOIDES, gen. nov.

Rostrum elongate, slender, widened at the tip, dissimilarly formed in the two sexes—( 3) feebly curved,

flattened, punctured, and carinate, (@) shorter, much more slender, and almost smooth,—the scrobes

lateral, broad and deep in the ¢, reaching the eyes, the antenne inserted at or beyond the middle in ¢

and at about the basal third or fourth in 2 ; eyes very large, lateral, coarsely facetted; mandibles

prominent, curved, sharply dentate within ; antenne slender, the funiculus 7-jointed, the joints obconic

and decreasing in length, the club pointed, annulate, and with a long, shining, conical basal joint ;

prothorax suboval, truncate and sinuately margined at the base; scutellum flattened, moderately large ;

elytra elongate, not or very slightly wider than the prothorax, produced at the tip; anterior and inter-

mediate coxe exserted, each separated by at least one-half their own width; first ventral suture sinuate,

the others straight; legs elongate; femora clavate and towards the apex sharply dentate, the anterior

pair stout at the base; tibiee rounded and unarmed at the outer apical angle; tarsi pilose beneath, the

third joint strongly bilobed, the anterior pair dilated and with long projecting hairs in the ¢, the claws

long and divergent; body elongate, subcylindrical, coriaceous, very finely pubescent, testaceous.

Type, H. attalee.

The two immature-looking insects belonging to this genus are nearly related to

Hoplorrhinus, from which they differ in their somewhat widely separated anterior and

intermediate coxe, the more feebly pedunculate femora, and the deep, laterally-placed

rostral scrobes of the male, the anterior tarsi, too, being dilated and very hairy in

this sex. Sphwracus, Faust, from Brazil, seems to approach Hoplorrhinoides in many

of its characters.

1. Hoplorrhinoides attalez, sp.n. (Tab. I. figg. 8, 8a, ¢ ; 9, 2.)

Elongate, opaque, pale testaceous, the eyes black, the rostrum piceous or ferruginous, the anterior knees and

scutellum black in one specimen; the pubescence sparse, pallid, and inconspicuous. Head shallowly

foveate between the eyes; rostrum (¢) a little longer than the head and protborax, flattened, with the

HOPLORRHINOIDES.—COSSONINA. 7

basal portion multicarinate, the apical portion closely punctured, and the antenne inserted at about the’

middle (in the second specimen shorter, with an undulate ridge on each side, a fine carina down the middle,

and the antenne inserted nearer the tip), ( 9 ) slender, arcuate, smooth from near the base, and the antennz

inserted at about the basal third, joints 1 and 2 of the funiculus elongate in both sexes, 3-5 decreasing

in length. Prothorax somewhat conical and about as long as broad in the ¢, a little shorter and more

rounded atthe sides in the 2, closely, minutely, or subobsoletely punctate. Elytra finely punctate-striate,

the interstices feebly convex or flat, subgranulate in one specimen. Beneath sparsely, obsoletely

punctate. Anterior tarsi of the g dilated and clothed with long, laterally projecting, pallid hairs.

Length 7-8, breadth 24-23 millim. (d Q.)

Hab. Guatemata, Cacao, 800 feet, near Trece Aguas, in Alta Vera Paz (Schwarz and

Barber, in U.S. Nat. Mus.).

Two males and two females, the former varying in the length and sculpture of the

rostrum, and in the point of insertion of the antenne. The sculpture of the prothorax

and elytra varies also in the different specimens of each sex ; but as all four are labelled as

having been found on the male-flowers of Attalea cohune (the large palm of the region),

and the general coloration is similar to that of Derelomus (species of which are known

to attack Chamerops), this cannot be altogether due to immaturity.

2. Hoplorrhinoides pallidus, sp. n.

2. Very like the same sex of H. attalec, but with the rostrum straighter and considerably longer than the

head and prothorax, striato-punctate at the base; joint 2 of the funiculus much shorter than 1; the pro-

thorax strongly transverse, rapidly narrowing from the middle forwards, shining, densely, minutely

punctate; the elytra obsoletely punctate-striate, the interstices Hat and coriaceous.

Length 64, breadth 24 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One immature specimen, set aside years ago for want of further material. It pro-

bably lives upon the male-flowers of a different palm from that attacked by /. attalee,

Attalea cohune being absent, I believe, from the Pacific slope of Chiriqui.

Group COSSONINA.

The Cossonids are usually treated either as a separate Family of the Rhynchophora

or as a subfamily of the Calandride, but they seem to be best placed under the

Curculionine, the group “Acamptina” connecting them to a certain extent with the

Cryptorrhynchina. Wollaston’s arrangement (1873) is here followed, except that

the Scolytiform Rhyncolides are dismembered from the Cossonides (following Leconte

and Horn), and that certain Trypetid and Hylobiid genera are altogether excluded. The

typical forms are mainly recognizable, apart from their general facies, by the claw-like

prolongation of the outer apical angle of the tibie (this being concave within in various

highly developed genera, such as Lhopalomesites, &c.), and the feebly emarginate or

simple third tarsal joint; but these characters are not always diagnostic, the tibie

sometimes being unarmed at the apex and the third tarsal joint bilobed. The Cossonina

8 RHYNCHOPHORA.

are particularly well represented in such Oceanic islands as St. Helena, Madeira, the

Canaries, the Hawaiian group, New Zealand, &c., and some of them are recorded as

having been carried immense distances across the ocean in floating drift-wood.

Sect. DRYOPHTHORIDES.

Dryophthorides, Lacordaire, Wollaston.

The species of this section are easily identified by their 4-jointed funiculus, the

5-jointed tarsi, the strongly unguiculate tibie, and the peculiar silky pruinosity of

the surface of the body.

DRYOPHTHORWUWS.

Dryophthorus, Schonherr, Curc. Disp. Meth. p. 332 (1826); Gen. Cure. iv. p. 1088; Lacordaire,

Gen. Col. vii. p. 322; Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 434, 442, 506.

A very widely distributed genus and particularly numerous in species in the northern

Pacific islands *, no less than seventeen being recorded by Mr. Perkins from the

Hawaiian group. The holarctic D. corticalis, Payk. (lymeaylon, F., americanus, Bed.),

is said to attack oak and alder.

1. Dryophthorus quadricollis, sp. n. (Tab. I. fig. 10.)

Moderately elongate, opaque, black, the scape of the antenue and the tarsi ferruginous, the surface with a

greyish sericeous pruinosity. Head closely punctate; eyes transverse, small, depressed, coarsely

facetted ; rostrum very stout, moderately long, slightly dilated opposite the points of insertion of the

antenne, closely punctate, smooth, bare, and shining at the tip, the antenn# inserted towards the base.

Prothorax as long as broad, subquadrate, abruptly constricted in front; closely punctate. Elytra

comparatively short, widening to about the basal third and narrowed thence to the apex, which is some-

what produced; coarsely seriate-punctate, the interstices raised, about as wide as the punctures on the

disc and becoming narrower towards the sides.

Length 24-25, breadth 1 millim. ( @ ?)

Hab. GuateMaa, Totonicapam 8500-10,500 feet (Champion).

* Dryophthorus cocosensis, sp. n.—Oblong-ovate, opaque, nigro-piceous or piceous, the antennal club

ferruginous ; the surface (when cleaned) clothed with a very fine greyish pruinosity, and the elytral

interstices each with a row of extremely minute scales. Head and rostrum densely, rugosely punctate ;

rostrum stout, parallel-sided, slightly constricted at the base; antennal scape widened from near the

base ; eyes large and depressed. Prothorax about as long as broad, strongly constricted in front, coarsely,

densely punctate. Klytra much wider than the prothorax, rounded-subtriangular; coarsely seriate-

punctate, the interstices raised and much narrower than the punctures. Tarsi very short.

Length 14-21, breadth 4-1 millim.

Hab. Cocos I.

Sent in abundance (with a species of Anchonus) by the late P. Biolley, the specimens labelled as having

been found in January 1902. This island belongs politically to Costa Rica, but it is situated so far from the

Pacific coast that the locality has not been included within the limits of this work. The species may be

known by its comparatively short, subtriangular elytra, with narrow raised interstices, the short tarsi, and the

broad scape of the antenne.

DRYOPHTHORUS.—STENOMMATUS, 9

Six examples. Less elongate than D. corticalis, Payk., the rostrum with a rather

larger bare shining space at the tip, the prothorax subquadrate, the elytra shorter,

more dilated at the sides below the base and more narrowed and attenuate at the tip.

When cleaned, the surface is so strongly pruinose as to appear plumbeous or greyish.

STENOMMATUS.

Sfenommatus, Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 484, 442, 506, 595.

The only tangible characters by which Stenommatus can be distinguished from

Dryophthorus appear to be the comparatively slender, curved rostrum and the narrower

eyes. ‘The supposed difference in the form of the vestiture is due to the mud-like

incrustation on the specimens of Dryophthorus examined by Wollaston.

1. Stenommatus fryi.

Stenommatus fryi, Woll. Trans. Ent. Soc. Lond. 1873, p. 595°.

Hab. Mexico (coll. Fry").

The unique type of this species appears to be a female.

2. Stenommatus sulcifrons, sp.n. (ab. I. fig. 11.)

Moderately elongate, narrow, depressed, opaque, nigro-piceous, the antenne (the club excepted), tip of the

rostrum, eyes, and tarsi ferruginous, the femora and tibise piceous, the surface with a greyish pruinosity,

the punctures each bearing a minute metallic scale. Head closely punctate, shallowly sulcate between

the eyes; eyes somewhat prominent, strongly transverse, moderately large, coarsely facetted, separated

above by about the width of the apex of the rostrum; rostrum rather slender, moderately long, abruptly

dilated opposite the points of insertion of the antenne, closely punctate, the outer half of the apical

portion smooth, shining, and bare, the basal portion sulcate, the antenne inserted at the middle and with

-an elongate scape. Prothorax narrow, about as long as broad, subquadrate, strongly constricted in front,

closely punctate. Elytra moderately long, somewhat oval, conjointly, subtriangularly produced at the

apex; coarsely seriate-punctate, the interstices raised. Legs short, rather slender.

Length 24, breadth # millim. (d.)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. Narrower than the Mexican 8. fry; the rostrum sulcate down the

basal half, narrower at the tip, the smooth apical space less extended, and the pterygia

very prominent ; the eyes somewhat prominent and more approximate above.

Sect. PENTARTHRIDES.

Pentarthrides, Wollaston.

The 5-jointed funiculus is the essential character of Pentarthrum and the other

genera of this section; Zomolips, Woll. (= Wollastonia, Horn*), however, has a

similar number of antennal joints, but, as Wollaston says, it is so obviously related

* This name is preoccupied for a fossil beetle described by Heer.

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 7, October 1909. CC

10 RHYNCHOPHORA.

to Hexarthrum that it must be placed near it. Dryotribus mimeticus, Horn (=Tha-

lattodora insignis, Perkins), from Key West, Florida, &c., has been introduced into the

Hawaiian Is., and it occurs also in Mustique Island, one of the Grenadines. This

insect somewhat resembles Dryophthorus and Cherorrhinus, but has the eyes placed

on the rostrum, as in Dioptrophorus, Ithaura, and Theognete, genera placed near

Anchonus in this work*. In all the Pentarthrides the metathoracic episterna are

almost or quite covered by the inflexed margin of the elytra, as in Dryophthorus.

PENTARTHRUM.

Pentarthrum, Wollaston, Ann. Nat. Hist. (2) xiv. p. 129 (1854) ; Trans. Ent. Soc. Lond. (2) v.

p. 897 (1861); ibid. 1873, pp. 434, 446, 5138, 598; Lacordaire, Gen. Col. vil. p. 324.

A widely distributed genus, the type of which is the European P. huttoni, Woll.

The only Central-American species that can be satisfactorily referred to it is P. cylin-

dricum, Woll., originally described from introduced examples found in the Island of

Ascension. In this latter insect the anterior cox are more approximate, and the

tarsi more slender than in P. huttoni. Pentarthrum appears to be especially well

represented in New Zealand, but some of the forms from that country will certainly

have to be eliminated.

1. Pentarthrum cylindricum. (Tab. I. fig 12.)

Pentarthrum cylindricum, Woll. Trans. Ent. Soc. Lond. (2) v. p. 398, t. 19. figg. 5, 5a’; ibid. 1873,

p. 653°; Champ. Ent. Monthly Mag. xlv. p. 104°.

Hab. Wonpuras? (Sallé); Nicaragua ?, Chontales (Janson); Panama, Tolé? (Cham-

pion).—BRaziL?, Rio Janeiro ? (codl. Fry).

Wollaston! states that the specimens of this species found by Mr. Bewicke in the

decayed wood at the bottom of some boxes, possibly used to import plants, in Ascension,

might have come from the Cape of Good Hope or Mauritius; later’, he adds, ‘ Brazil”

and “ Malay Is.” as localities. There can be no doubt, however, that the home of this

insect is in Tropical America. Three examples only have been received from within

our limits, one of which is shown on our Plate, Wollaston’s figure being too elongate.

RHINANISUS.

Rhinanisus, Broun, New Zealand Journ. Sci. i. p. 489 (1883).

Various small, elongate, depressed Central- and $.-American forms, with the rostrum

rather long, slender, and widened outwards (especially in the male), the eyes depressed,

the basal portion of the head globose and abruptly separated from the anterior portion,

the elytra pilose or setose at the apex, and the anterior cox narrowly separated, agree

* Cf. Col. iv. 4, pp. 92-97.

RHINANISUS. 11

sufficiently with the species of Rhinanisus (type, Pentarthrum fulvicorne, Broun), from

New Zealand, to be included in the same genus. ‘The tarsi are comparatively stout

in &. pilicauda.

The American forms may be tabulated thus: —

a. Tarsi with the 3rd joint comparatively broad, distinctly emarginate; the basal

joints rather narrow.

a‘. Rostrum considerably widened towards the tip in the ¢ ; eyes rather large:

species larger and more robust Loe . hirtipennis.

b'. Rostrum very feebly widened towards the tip in both sexes: species smaller

and narrower.

a®, Elytra very elongate and depressed; eyes small.

a’. Rostrum relatively stouter; ventral segments 1 and 2 broadly sulcate

inthe... ee. ventralis.

bo’. Rostrum more slender; elytra flatter. . . . . . + + + « + ~ planatus.

b°. Elytra shorter and less depressed.

a‘. Body piceous ; elytral interstices very feebly convex; eyes larger. . tenuiculus.

b'. Body ferruginous; elytral interstices flat; eyes smaller . 2 . . . [ peruanus *, |

b. Tarsi shorter, with the 3rd joint very little wider than the first and second,

these latter comparatively stout; elytra as in R. tenuiculus ; eyes rather large. pilicauda.

1. Rhinanisus hirtipennis, sp. n. (Jab. I. fig. 13, ¢.)

Elongate, narrow, depressed, moderately shining, finely alutaceous, fusco-castaneous, the eyes, the space

between them, and the under surface blackish; clothed with a very fine scattered pubescence, the elytra

with longer, semierect, pallid, setiform hairs at the apex. Head (the globose basal portion excepted)

somewhat coarsely punctate; eyes rather large; rostrum nearly as long as the posterior portion of the

prothorax, slender and sparsely punctured in the 2, a little shorter, stouter, considerably widened

towards the tip, and more closely punctured in the d, the antenne inserted at about the basal third ( 3)

or fourth (¢), the scape reaching the posterior limit of the eyes. Prothorax a little longer than broad,

abruptly constricted in front, somewhat rounded at the sides and gradually narrowing from the middle

forwards, closely punctate. Scutellum small, transverse. Elytra elongate, flattened, slightly wider than

the prothorax, subparallel in their basal two-thirds ; closely punctate-striate, the interstices narrow and

feebly uniseriate-punctate, the punctures becoming more conspicuous on the apical declivity. Beneath

closely, finely punctate ; ventral segments 1 and 2 suleate down the middle in the d. Tarsi rather

stout.

Length 34, breadth ;% millim. (¢ 2.)

* Rhinanisus peruanus, sp. n.—Elongate, narrow, depressed, faintly alutaceous, shining, ferruginous, the

eyes black, the elytra with numerous erect pallid setze at the apex. Head and rostrum somewhat coarsely,

closely punctate, the rostrum subcylindrical, very slightly widened towards the tip: eyes small. Pro-

thorax longer than broad, constricted in front, rather sparsely punctate. LElytra moderately elongate,

parallel in their basal half, coarsely seriate-punctate, the punctures placed along faint striz, the inter-

stices flat. Length 24 millim. (Q ?)

Hab. Perv, Maropan (coll. Fry, in Mus. Brit.).

One specimen. Near R, tenuiculus, but more depressed, entirely ferruginous in colour (the eyes excepted),

the elytral interstices flat. Very like the New Zealand R. fulvicornis, but smoother and less pubescent (except

at the apex), the anterior coxe more approximate.

CC 2

12 RHYNCHOPHORA.

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

One pair, found under bark, in June 1882, in the bamboo-thickets at the highest

point reached by the present writer on the slope of the Volcan de Chiriqui. Larger

and broader than the other American species referred to Rhinanisus, the rostrum

considerably widened towards the tip in the male, the antenne inserted nearer its base,

the anterior coxe a little less approximate.

2. Rhinanisus ventralis, sp. n. (Tab. I. fig. 14.)

Very elongate, narrow, depressed, moderately shining, finely alutaceous, varying in colour from piceous to

ferruginous, the rostrum, antenne, and legs constantly ferruginous, the head and prothorax often

blackish and darker than the elytra; clothed when fresh with a very fine scattered pubescence, which is

more distinct on the lower than on the upper surface, the elytra with some conspicuous fine, semierect,

pallid, setiform hairs at the apex. Head (the globose basal portion excepted) closely and somewhat

coarsely punctate; eyes small; rostrum slender, slightly widened towards the tip, feebly curved, about

as long as the prothorax, sparsely punctate, the antennz inserted at the middle in both sexes. Pro-

thorax as long as broad, slightly rounded at the sides, narrowed and strongly constricted in front,

closely punctate. Elytra very elongate, slightly wider than the prothorax, subparallel for about three-

fourths of their length; closely punctate-striate, the interstices narrow and each with a row of minute

scattered punctures, which become more distinct on the apical declivity. Beneath closely, finely

punctate ; ventral segments 1 and 2 broadly sulcate down the middle in the ¢. Tarsal joints 1 and 2

slender.

Length 2,4,-2;%, breadth 2-3 millim. (¢ 9.)

Hab. GuatemMata, El Tumbador, Las Mercedes, Cerro Zunil, Senahu (Champion).

Sixteen specimens, all but one from the Pacific slope and from elevations between

2500 and 5000 feet. Very variable in size and colour, and mainly distinguishable by

the closely and coarsely punctured black head, and the conspicuous pallid setiform

hairs on the apical portion of the elytra. The single (3) example from Senahu is

larger and darker than the others, and has the elytral interstices more distinctly

uniseriate-punctate ; it has, however, the ventral segments 1 and 2 sulcate, as in the

typical males from Cerro Zunil.

3. Rhinanisus planatus, sp. n. (Tab. I. fig. 15.)

Very elongate, narrow, strongly depressed, moderately shining, finely alutaceous, castaneous, the eyes and the

exposed portion of the head black, the under surface piceous, the apex of the elytra and the under

surface clothed with a few fine hairs. Head (the globose basal portion excepted) closely and somewhat

coarsely punctate; eyes small; rostrum slender, feebly curved, cylindrical, about as long as the

prothorax, very sparsely punctate laterally, smooth along the centre, the antennz inserted just behind

the middle. Prothorax as long as broad, rounded at the sides, narrowing forwards and strongly

‘constricted in front, closely punctate. Elytra very elongate, flattened, subparallel for nearly four-fifths

of their length ; closely punctate-striate, the interstices narrow, faintly uniseriate-punctate. Beneath

rather sparsely, somewhat coarsely punctured. Tarsal joints 1 and 2 slender.

Length 23-24, breadth 3-2 millim. (9 ?)

Hab. Panama, Petia Blanca 3000 feet (Champion).

Two specimens. A very elongate form allied to 2. ventralis, with the rostrum a

RHINANISUS.—STENOTRUPIS. 13

little longer, smoother, and more slender, the elytra somewhat longer, flatter, and

parallel to near the tip, the under surface not so closely punctate. In both species the

eyes are small and separated by a narrow space from the transverse furrow behind them.

4, Rhinanisus tenuiculus, sp. n.

Elongate, narrow, moderately depressed, finely alutaceous, shining, piceous, the antenna, tip of the rostrum,

apical margin of the elytra, and legs reddish; clothed with scattered minute hairs, which become longer

and setiform at the apex of the elytra. Head and rostrum sparsely, finely punctate, the rostrum rather

slender and subcylindrical, the antenne inserted behind the middle. Prothorax a little longer than

broad, gradually narrowing from the rounded hind angles, strongly constricted in front, finely, somewhat

closely punctate. Elytra moderately long, subparallel in their basal half, closely punctate-striate, the

interstices feebly convex, faintly uniseriate-punctate, the punctures becoming more distinct at the apex.

Beneath sparsely, finely punctate. Tarsi with joints 1 and 2 rather slender, 4 long and narrow.

Length 2-22, breadth 3-2 millim. ( 2.)

Hab. Guatemaia, Duefias, Atlantic slope (Champion).

Two specimens. Extremely like &. pilicauda, but easily separable therefrom by the

longer and more slender tarsi, the prothorax, too, is a little more coarsely and sparsely

punctured. Less elongate than &. ventralis and &. planatus, the prothorax less

rounded at the sides, the elytra distinctly more convex.

5. Rhinanisus pilicauda, sp. n.

Elongate, narrow, moderately depressed, finely alutaceous, shining, piceous, the antenne and humeri reddish ;

clothed with scattered minute hairs, which become longer, erect, and setiform at the apex of the elytra.

Head and rostrum sparsely punctate, the rostrum slender and almost straight in the 9, and a little

shorter, stouter, and more curved in the g, the antenne inserted behind the middle, the eyes slightly

prominent. Prothorax longer than broad, suboval, strongly constricted in front, closely, finely punctate.

Elytra moderately long, subparallel in their basal half; closely punctate-striate, the interstices faintly

uniseriate-punctate, the punctures becoming more distinct at the apex. Beneath finely, rather sparsely

punctate; first ventral segment slightly depressed down the middle in the ¢. Tarsi stout, comparatively

short, the third joint feebly emarginate.

Length 24, breadth 3 millim. (¢ @.)

Hab. GuateMALA, Chiacam in Alta Vera Paz (Champion).

One pair. Differs from the other species of the genus in the rather short, stout

tarsi. ‘The setiform pallid hairs at the apex of the elytra are conspicuous.

STENOTRUPIS.

Stenotrupis, Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 484, 447, 515, 602.

? Diedimorpha, Broun, New Zealand Journ. Sci. i. p. 489 (1883).

The two forms referred to this genus by Wollaston are from the Malay Islands *

and Cuba respectively. The one now added is the first to be recorded from the

* §. evilis, Pasc., from Aru, is based on two different species, the female being a true Stenotrupis and the

male belonging to a very different genus, Coptus, Woll. The two sexes of the Malayan S. crassifrons were

described by Wollaston.

14 RHYNCHOPHORA.

American mainland. ‘They are elongate, narrow, minute, depressed forms, with a

strongly exserted head and a d-jointed funiculus. The New Zealand insects forming

the types of Diedimorpha, Broun, seem to me to be scarcely separable from

Stenotrupts.

1. Stenotrupis ovaticeps, sp.n. (Tab. I. fig. 16.)

Elongate, very narrow, depressed, shining, rufo-testaceous, the eyes and the space between them black ;

sparsely, very finely pubescent, the pallid hairs becoming longer and more conspicuous towards the apex

of the elytra. Head strongly exserted, ovate, sparsely punctate ; rostrum a little longer than the head,

slender, slightly widening outwards, sparsely punctate, the antennx inserted at about the basal third,

the funiculus and scape slender. Prothorax a little longer than broad, subconical, constricted in front,

the sides rounded at the base ; sparsely impressed with rather coarse oblong punctures. Elytra elongate,

widening to a short distance below the base and subparallel thence to near the apex, the apex itself

bluntly rounded; closely seriate-punctate, the interstices flat and alutaceous. Beneath somewhat

coarsely, rather sparsely punctate. Legs moderately stout.

Length 12, breadth 4 millim. (9 ?)

Hab. Panama, Bugaba (Champion).

One specimen. Allied to the Cuban and San Domingo S. acicula, Woll. (= Cato-

lethrus palmeus, Schonh., in litt., in coll. Pascoe), but less depressed, the head a little

shorter, the prothorax less elongate, the seriate punctures on the elytra more scattered,

and the bristly hairs at the apex not so conspicuous.

PSEUDOPENTARTHRUM.

Pseudopentarthrum, Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 434, 445, 512, 597; Casey, Ann.

N. York Acad. Sci. vi. p. 696.

Phiwophagomorphus, Wollaston, loc. cit. pp. 434, 445, 511, 596.

? Pentarthrinus, Casey, loc. cit. p. 698 (1902).

This genus has its headquarters in Mexico and Guatemala, extending northwards

into the United States and southwards into Colombia.

The numerous new forms now added, three only of which have been obtained in

any numbers, connect Wollaston’s genera, which cannot be maintained as distinct *,

and it is probable that Pentarthrinus also will have to be sunk under Pseudo-

pentarthrum.

The species are all of small size, subcylindric or conico-cylindric in shape, and

mostly black or castaneous, with the surface bare and shining. The Central-American

representatives may be roughly grouped thus :—

Head flattened or, at most, very slightly depressed between the eyes. [Psrupo-

PENTARTHRUM, Woll. |

Rostruin distinctly grooved down the middle towards the base.

The groove extending upwards on to the interocular portion of the head . . Species 1.

* Other unnamed forms from the West Indies (from Cuba and Montserrat) are contained in the U.S. Nat.

Museum. Mr. H. H. Smith has also captured a species in Grenada.

PSEUDOPENTARTHRUM. 15

The groove not extending on tothe head . . . . . . . . +. ~~ Species 2.

Rostrum without definite median groove towards the base. . . . . . . . Species 3-6.

Head transversely depressed and more or less distinctly foveate between the eyes.

[ Puit@orHacomorpuus, Woll.]

Rostrum distinctly grooved down the middle towards the base . . . . . . Species 7.

Rostrum obsoletely grooved down the median third . . . . . . . . . Species 8.

Rostrum without definite median groove . . . . . . . . . + + +) «Species 9-13.

1. Pseudopentarthrum lineifrons, sp. n.

Moderately elongate, convex, subcylindrical, shining, black, the antenne and tarsi ferruginous. Head very

sparsely, minutely punctate, flattened and feebly longitudinally sulcate between the somewhat prominent

eyes, the fine median groove extending forwards along the basal half of the rostrum, the rostrum itself

very short and broad, closely punctate, and with its apical portion transversely quadrate. Prothorax

nearly as long as broad, subconical, obsoletely constricted in front, closely, rather finely punctate. Elytra

comparatively short, much wider than the prothorax, convex, parallel in their basal half, with rows of

subapproximate punctures placed along faintly-impressed narrow striw, the interstices narrow, almost

flat, and finely uniseriate-punctate.

Length 2, breadth + millim.

Hab. Guatumata, Duefias (Champion).

A small, moderately elongate, convex form, with a very short, broad, finely sulcate

rostrum, the head without transverse frontal depression, the prothorax rather narrow

and subconical, the elytra comparatively short and cylindrical, closely seriate-punctate,

and with narrow, distinctly uniseriate-punctate interstices. One specimen.

2. Pseudopentarthrum angustulum, sp. n.

Moderately elongate, narrow, subcylindrical, convex, shining, black, the antenne, tibie, and tarsi ferruginous.

Head very sparsely, conspicuously punctate, slightly depressed between the eyes, the latter small;

rostrum short, stout, slightly constricted at the base, sparsely punctate, the basal portion faintly sulcate

anteriorly. Prothorax as long as bread, convex, slightly narrowing forwards, feebly constricted in front,

closely, somewhat coarsely punctate, with indications of a smooth median line, Elytra broader than the

prothorax, very gradually widened to a little beyond the middle and then arcuately narrowed to the

apex; rather coarsely punctate-striate, the sutural stria deeply impressed, the interstices somewhat

convex and each with a row of scattered extremely minute punctures.

Length 27, breadth 4 millim.

Hab. Mexico, Atoyac in Vera Cruz (//. Hf. Smith).

One specimen. A small, narrow, convex, posteriorly widened form, with the head

very slightly depressed between the eyes, the basal portion of the rostrum faintly

sulcate anteriorly, the puncturing of the prothorax and elytra coarse.

3. Pseudopentarthrum mexicanum, sp. n.

Moderately elongate, conico-cylindric, shining, black, the antenne and tarsi ferruginous. Head with a few

scattered punctures, slightly depressed and obsoletely longitudinally grooved between the eyes, the

latter rather large; rostrum very short and stout, sparsely punctate, the basal portion obsoletely grooved

anteriorly. Prothorax about as long as broad, convex, oval, scarcely constricted in front, closely,

uniformly punctate. Elytra broader than the prothorax, gradually widened to about the middle; with

16 RHYNCHOPHORA.

rows of coarse punctures placed along faint striw, the sutural stria deeply impressed, the interstices

feebly convex and obsoletely uniseriate-punctate.

Length 21, breadth ¢ millim.

Hab. Mexico, “Sierra de Durango ” (ége, ex coll. Solart).

One specimen. Extremely like P. angustulum, and perhaps the sexual complement

of that species, but broader behind, with a shorter and stouter rostrum, which is indis-

tinctly grooved anteriorly, the scrobes extending back to the eyes and then running

downwards, the eyes themselves a little larger. The rostrum is similar to that of

P. planifrons, but this last-mentioned insect has the elytra parallel and striate near

the suture only and the prothorax more sparsely punctured.

4, Pseudopentarthrum planifrons, sp. n.

Moderately elongate, subcylindrical, shining, black, the antenne and tarsi ferruginous. Head very sparsely

punctate, almost unimpressed between the eyes; rostrum very short and stout, finely punctate. Pro-

thorax about as long as broad, oval, feebly constricted in front, somewhat closely punctate. Elytra

considerably wider than the prothorax, moderately long, parallel in their basal half, coarsely seriate-

punctate, the punctures placed along fine, shallow strie near the suture and becoming smaller and more

scattered towards the sides, the sutural strie deeply impressed from a little below the base, the

interstices flat and obsoletely uniseriate-punctate. Beneath sparsely, finely punctate. Anterior cox

subcontiguous.

Length 23, breadth 2 millim.

Hab. GvuateMaua, Chacoj inthe Polochic valley (Champion).

One specimen. This is a true Pseudopentarthrum, following Wollaston’s diagnosis,

and nearly related to P. brevirostre, differing from that insect in the relatively narrower

prothorax and the more scattered seriate punctures on the elytra, those near the suture

coarser and the sutural stria deeply impressed.

5. Pseudopentarthrum brevirostre, sp. n. (Tab. I. fig. 17.)

Moderately elongate, subcylindrical, rather convex, shining, black, the antenne, tibis, and tarsi more or less

ferruginous. Head sparsely, minutely punctate, obsoletely foveate and almost unimpressed between the

eyes ; rostrum extremely short, stout, subquadrate, closely, finely punctate, the anterior portion with a

very faint median groove in one specimen (?accidental). Prothorax scarcely broader than long, oval,

constricted in front, closely punctate. lytra moderately long, very little wider than the prothorax,

parallel in their basal half, with rows of moderately coarse punctures placed in shallow strie, the

sutural line only deeply impressed, the interstices almost flat and obsoletely uniseriate-punctate.

Length 23, breadth 5%, miilim.

Hab. Mexico, Jalapa (Hége), Motzorongo (Flohr).

Two specimens. Very near P. phlwophagoides, Woll., but differing from the unique

type of that insect in its rather larger size and more elongate shape, the more rounded

sides of the prothorax, and the less raised elytral interstices. The head is almost

unimpressed between the eyes and the rostrum extremely short as in Wollaston’s

species, the type of the genus Pseudopentarthrum. The relatively broad prothorax

separates P. brevirostre from the other allied forms.

PSEUDOPENTARTHRUM. 17

6. Pseudopentarthrum phleophagoides.

Pseudopentarthrum phiwophagoides, Woll. Trans. Ent. Soc. Lond. 1873, p. 597°.

Hab. Mexico (Trugui, in coll. Fry 1).

This species, the unique type of which is in the British Museum, may be known

from the allied forms by its small size, the extremely short rostrum, the unimpressed

head, the densely punctured, somewhat parallel-sided prothorax, and the cylindrical

elytra. |

7. Pseudopentarthrum incisum, sp. n.

Elongate, subcylindical, shining, dilute fusco-castaneous, the under surface, head, and femora blackish. Head

sparsely punctate, strongly, transversely depressed between the eyes; rostrum short, stout, slightly

constricted at the hase, closely punctate, the apical portion subquadrate, the basal portion narrowly

suleate down the middle. Prothorax slightly broader than long, oval, constricted in front, closely

punctate. Elytra somewhat depressed, elongate, considerably wider than the prothorax, subparallel for

two-thirds of their length, conjointly rounded at the apex; coarsely crenate-striate, the interstices

convex and obsoletely uniseriate-punctate.

Length 2?, breadth 1 millim.

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One specimen. Nearly related to the Colombian P. (Phlwophagomorphus)

angusticolle, Woll. (the unique type of which is similarly coloured, perhaps due

to immaturity), but smaller and more depressed, the rostrum faintly sulcate, the

prothorax shorter and with the sides more rounded, the elytra flatter and with

rather narrower interstices. The elongate, narrow shape, the distinctly sulcate

rostrum, the coarsely crenate-striate elytra, &c., distinguish P. inciswm from its

nearest allies.

8. Pseudopentarthrum subcylindricum, sp. n.

Moderately elongate, subcylindrical, convex, shining, black, the antenne and tarsi ferruginous. Head very

sparsely, minutely punctate, strongly, transversely depressed and shallowly foveate between the eyes;

rostrum very short and stout, closely punctate, faintly sulcate along the median third. Prothorax

slightly broader than long, oval, feebly constricted in front, closely, finely punctate. Elytra moderately

long, convex, much wider than the prothorax, parallel in their basal half; with rows of subapproximate

small punctures, which are placed in shallow strize towards the suture, the interstices broad, almost flat,

obsoletely uniseriate-punctate.

Length 23, breadth 8, millim.

Hab. Guatemaa, Zapote, Pacific slope (Champion).

One specimen. <A moderately elongate, convex, subcylindrical form, with the front

transversely excavate, the prothorax finely punctate, and the elytra with smaller seriate

punctures than usual. P. subcylindricum is more convex than éP. depressifrons, an

insect occurring at the same locality, and has a relatively shorter rostrum and more

finely seriate-punctate elytra.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1909. DD

18 RHYNCHOPHORA.

9. Pseudopentarthrum limbatum, sp.n. (Tab. I. fig. 18.)

Elongate, conico-cylindric, shining, black, the sides of the elytra broadly rufescent (leaving an attenuate black

sutural stripe), the antenne, tibie, and tarsi ferruginous, Head sparsely punctate, transversely depressed

and teebly foveate between the eyes; rostrum very short, stout, closely punctate. Prothorax broader than

long, suboval, constricted in front, closely, rather coarsely punctate. Elytra much broader than the

prothorax, moderately long, gradually widened to beyond the middle and somewhat produced at the apex ;

with rows of moderately coarse punctures placed along narrow shallow strie, the punctures becoming

smaller and more scattered towards the sides, the interstices broad, almost flat, and finely uniseriate-

punctate. Beneath sparsely, finely punctate.

Var. The elytra indeterminately rufescent towards the tip only.

Length 27-32, breadth 1,1,-14 millim.

Hab. Mexico, Motzorongo (Flohr); Guatemaua, Cerro Zunil, Las Mercedes,

Capetillo, Duefias (Champion).

Fourteen specimens from the Pacific slope of Guatemala, scarcely varying in colour,

and two others, treated as a dark variety, from Motzorongo in Vera Cruz. A com-

paratively large, posteriorly widened form, with the elytra very broadly rufescent at

the sides and the punctures of the outer series rather fine aud somewhat scattered.

10. Pseudopentarthrum atrum, sp. n.

Elongate, conico-cylindric, shining, black, the antenne and tarsi ferruginous. Head sparsely punctate,

transversely depressed and feebly foveate between the eyes; rostrum very short, stout, closely punctate.

Prothorax broader than long, suboval, constricted in front, closely, coarsely punctate. Elytra very

gradually widened or subparallel in their basal half, conjointly rounded and scarcely produced at the

apex ; coarsely seriate-punctate, the punctures closely placed along shallow striw, the interstices rather

broad, feebly convex, aud conspicuously uniseriate-punctate.

Length 23-33, breadth 1-14 millim.

Hab. Mexico, Paso del Macho, Cordova, Jalapa (Hoge); Britisa Honpuras (Blanca-

neaux); GUATEMALA, San Gerdénimo (Champion).

Nine specimens. Perhaps a dark form of P. limbatum, with the prothorax and

elytra more coarsely punctured. ‘The two examples from San Gerénimo are taken as

the types.

11. Pseudopentarthrum depressifrons, sp.n. (Tab. I. fig. 19.)

Elongate, subcylindrical, shining, black or nigro-piceous, the tarsi and antenne ferruginous, Head sparsely

punctate, broadly, transversely depressed, and more or less distinctly foveate between the eyes; rostrum

curved, short and stout, closely punctate. Prothorax nearly as long as broad, convex, suboval, distinctly

constricted before the apex, closely punctate. Elytra long, wider than the prothorax, subparallel in their

basal half, the apices somewhat produced, conjointly rounded, and narrowly margined ; rather coarsely

seriate-punctate, the punctures placed in shallow striz, the interstices feebly convex, obsoletely and

irregularly uniseriate-punctate. Beneath closely punctate ; first ventral segment broadly depressed down

the middle in the ¢.

Length 2;,-22, breadth 4-9 millim. (¢ @.)

Hab. GUATEMALA, Guatemala city, Capetillo, Zapote (Champion).

Numerous examples. A small form closely related to P. phiwophagoides, with a

PSEU DOPENTARTHRUM.— MICROPENTARTHRUM. 19

slightly longer rostrum and the head broadly depressed between the eyes. ‘The

punctures on the elytra vary in size and depth, and the prothorax in one of the Zapote

specimens is arcuately dilated at the sides.

12. Pseudopentarthrum foveifrons, sp. n.

Moderately elongate, conico-cylindric, shining, black, the apical joint of the tarsi ferruginous. Head closely

punctate, transversely depressed and foveate between the eyes, the latter somewhat prominent; rostrum

short, stout, closely, finely punctate. Prothorax suboval, about as long as broad, narrowed and feebly

constricted in front, very closely, somewhat finely punctate. Elytra convex, moderately long, broader

than the prothorax, gradually widening to the middle, with rows cf rather coarse punctures placed along

shallow striw, the sutural stria more deeply impressed, the interstices feebly convex and obsoletely

uniseriate-punctate, the humeri prominent. Beneath closely punctate.

Length 23-24, breadth 2-1 millim.

Hab. Guatemata, Chacoj and San Juan in Alta Vera Paz (Champion), Trece Aguas

(Schwarz and Barber, in U.S. Nat. Mus.).

Kight specimens, the one from San Juan having the prothorax arcuately dilated at

the sides, a similar difference being observable in one of the Zapote examples of

P. depressifrons. ‘Yhis is the Atlantic representative of that species, differing from it

in the more convex, shorter, less parallel elytra, and the darker tarsi and antenne.

The interocular portion of the head is strongly depressed and foveate.

13. Pseudopentarthrum tenue, sp. n.

Elongate, narrow, subcylindrical, shining, black, the antenne, tibiew, and tarsi ferruginous. Head sparsely

punctate, transversely depressed and foveate between the eyes; rostrum very short, stout, constricted

at the base, the anterior portion transversely quadrate, closely, finely punctate ; eyes slightly prominent.

Prothorax a little longer than broad, oval, distinctly constricted in front, closely punctate, Hlytra

elongate, wider than the prothorax, parallel to beyond their basal half, produced and conjointly rounded

at the apex; rather coarsely seriate-punctate, the punctures placed in shallow strie, the iuterstices feebly

convex and obsoletely uniseriate-punctate. Beneath very sparsely punctate ; first ventral segment

depressed at the middle.

Length 24, breadth ? millim. (¢.-)

Hab. Guatemaia, Duefas (Champion).

One specimen, found in the vicinity of the Volcan de Fuego. A very narrow,

elongate form, with the widened apical portion of the rostrum transversely quadrate,

the prothorax as long as broad, and the elytra produced at the apex. It is nearly

related to P. depressifrons. Mr. Wickham has sent me a very similar unnamed form

from Brownsville, Texas.

MICROPENTARTHRUM, gen. nov.

Rostrum very short and stout, somewhat constricted at the base, feebly curved, the apical portion parallel-

sided, the scrobes subangulate, extending backwards for a short distance towards the eyes and then

abruptly descending, the antenne inserted at about the middle; eyes small, rounded, rather prominent,

inserted just in front of the globose portion of the head, the space between them transversely depressed ;

DD 2

20 RHYNCHOPHORA.

antenne with a 5-jointed funiculus, the club ovate, small; prothorax oblong, convex; scutellum not

visible ; elytra oblong, oval, convex, the humeri almost obliterated ; metathoracic episterna covered by

the inflexed margin of the elytra; anterior coxe subcontiguous; legs short; body conico-cylindric,

glabrous, metallic.

Type, M. eneum.

This genus is nearly related to Pseudopentarthrum, Woll., and Pentarthrinus, Casey,

and the type is probably apterous, the scutellum not being visible and the humeri

almost obliterated. Micropentarthrum belongs to Wollaston’s section ‘ 666” of the

‘« Pentarthrides,” the other two genera to his section “‘ 00.”

1. Micropentarthrum zneum, sp.n. (Tab. I. figg. 20, 20 a.)

Moderately elongate, shining, neous, the antenne in part, and the tibie and tarsi, ferruginous, the antennal

club and femora piceous. Head very sparsely, minutely punctate, transversely depressed and foveate

between the eyes; rostrum closely, finely punctate. Prothorax as long as broad, somewhat oval, very

feebly constricted in front; closely, finely punctate. Elytra moderately long, rounded at the sides, at

the middle very much wider than the prothorax, and obliquely narrowed at the tip; with rows of rather

coarse scattered punctures placed along faintly impressed strie, the sixth abbreviated anteriorly, the

interstices almost smooth. Beneath sparsely punctate, the ventral segments with a few widely scattered

minute punctures, the first unimpressed.

Length 2;4,, breadth 3 millim. (9?)

Hab. GuatTEMALA, San Gerénimo (Champion).

One specimen. This is the only metallic Central-American Cossonid known to me.

NYSSONOTUS.

Nyssonotus, Casey, Ann. N. York Acad. Sci. vi. p. 701 (1892).

The single species of this genus may be known by its dense, coarse sculpture, and

the abundant, short, suberect setosity of the surface. The funiculus is 5-jointed ; the

rostrum is rather long, stout, and parallel-sided, and not abruptly separated from

the head; the eyes are rather large and depressed ; the prothorax is much narrower

than the elytra; the elytra are truncate at the base, comparatively broad, parallel, and

rugosely punctured.

1. Nyssonotus seriatus. (Tab. I. fig. 21.)

Nyssonotus seriatus, Casey, Aun. N. York Acad. Sci. vi. p. 701°.

Hab. Norta America, El Paso! and Marfa in Texas, San Jacinto in California.—

Mexico, Toxpam, Jacale (Sal/é), Xucumanatlan in Guerrero (H. H. Smith).

Five specimens, the one from Jacale agreeing very nearly with (though narrower

than) the four from Texas and California before me, the others from Mexico more

elongate, and with the elytral interstices more densely and sub-biseriately punctate

towards the suture.

PSEUDAPOTREPUS. 2]

Sect. PSEUDAPOTREPIDES.

The single genus placed in this section has a 6-jointed funiculus, but it cannot be

included in the “ Onycholipides” of Wollaston. Psewdapotrepus forms, as it were, a

connecting-link with the Acamptina, the prosternum being angularly emarginate at the

apex and the rostrum deflexed.

PSEUDAPOTREPUS, gen. nov.

Rostrum stout, short, parallel-sided, deflexed in repose, abruptly separated from the large head, the scrobes

obliquely descending to the eyes ; antenne inserted at the middle of the rostrum, the funiculus 6-jointed—

1 stout, as long as 2-4 united, 3-6 closely articulated, strongly transverse, and widening outwards,—the

club ovate, abrupt, rather large, with the basal joint shining and as long as the rest united ; eyes lateral,

placed on the convex portion of the head, coarsely facetted, coalescent beneath; prothorax somewhat

oval; scutellum small; elytra much wider than the prothorax, gradually narrowing from the base,

produced at the apex; prosternum unimpressed down the middle, margined and deeply, angularly

excised at the apex; metasternum short; anterior coxe narrowly, the others widely, separated ;

legs short; femora and tibie stout, the tibia strongly unguiculate; tarsi slender, the third joint

very little wider than the second, the claws minute, free ; body oblong-ovate, coarsely sculptured

and setose.

Type, P. macrophthalmus.

The type of this genus has somewhat the facies of the N.-American Apotrepus, Casey,

except that it is very much smaller. The short, 6-jointed funiculus, the inferiorly

coalescent, coarsely facetted eyes, which are placed on the convex portion of the head

(as in Micromimus), and the angularly emarginate apex of the prosternum (allowing a

considerable deflexity of the rostrum in repose) are its chief characters. No other

Cossonid has been described, so far as I am aware, with the eyes coalescent beneath,

though they are subcontiguous in Zetratemnus.

1. Pseudapotrepus macrophthalmus, sp. n. (Tab. I. figg. 22, 22 a-c.)

Moderately shining, piceous, the antenne, rostrum, legs, and elytra more or less ferruginous; sparsely

clothed with coarse, semierect, blunt, ochreous sete, those on the elytra arranged in a single row

along each interstice. Head and rostrum densely, coarsely punctate, the head shallowly trans-

versely grooved between the eyes, the rostrum slightly curved and about as long as the posterior

portion of the prothorax. Prothorax nearly as long as broad, feebly rounded at the sides, gradually

narrowing forwards, strongly constricted in front, coarsely, densely punctate. Elytra moderately long,

somewhat triangular, with rows of closely placed, coarse, subquadrate punctures, separated by very

narrow, slightly raised, sparsely uniseriate-punctate interstices, the outer striz entire. Beneath closely,

coarsely punctate.

Length 2, breadth 3 millim.

Hab. Guatemata, near the city (Champion).

One specimen.

RHYNCHOPHORA.

Sect. COSSONIDES.

Cossonides, Wollaston (part.).

Cossonini, Lecoute (part.).

Under this section are placed most of the genera with a 7-jointed funiculus in-

cluded in the Cossonides by Wollaston, less Zomolips and the other forms related to

Rhyncolus ; these lattter have the rostrum not so abruptly separated from the com-

paratively broader head, and uninterruptedly continuous with the frons, and the

anterior coxee usually subcontiguous f.

Homaloxenus, Woll. (=Nanus, Schénh.), is here excluded from the Cossonina, and

it has already been dealt with under the Trypetina (anted, p. 5).

HEPTARTHRUM, gen. nov.

Head globose, almost smooth; rostrum stout, curved, short, subcylindrical, abruptly separated from the

head, the eyes small, lateral, strongly transverse, and placed at its base, the scrobes obliquely descending ;

antenne inserted at or just beyond the middle of the rostrum, the funiculus 7-jointed, slender, the club

abrupt, stout, short-ovate, with the basal joint more sparsely pilose than the rest; prothorax long, oval

or subconical, feebly constricted in front, subtruncate at the base; scutellum invisible or extremely

minute; elytra less than twice the length of the prothorax, subtruncate at the base, produced at the apex,

coarsely and closely seriate-punctate, the outer rows of punctures becoming coalescent anteriorly ; anterior

coxe separated by at most their own width; metasternum rather short, the episterna almost covered by

the inflexed margin of the elytra; ventral segments 3 and 4 very short, the sutures deep; legs short;

tibis with a long claw at the outer apical angle, the anterior pair feebly sinuate within; tarsi slender,

joint 3 simple, the claws minute, slender, free; body oblong-ovate, glabrous.

Type, H. gibbipenne.

This genus belongs to Wollaston’s section “ g” of his group Cossonides. ‘The three

species referred to it,—two from the highest part of the Guatemalan Cordillera and one

from Mexico,—have the eyes placed, as it were, at the base of the rostrum, owing to

the abrupt separation of the latter from the globose head, the prothorax longer than

broad, and the scutellum extremely minute or invisible. No external sexual marks of

distinction are apparent in any of them. ‘The relatively shorter elytra and metasternum,

the almost or quite obsolete scutellum, and the very coarsely and closely seriate- e- punctate

elytra separate Heptarthrum from Stenomimus.

* Scutellum not visible.

1. Heptarthrum gibbipenne, sp. n. (Tab. I. tigg. 23, 23 a.)

tather convex, oblong-ovate, widening posteriorly, feebly shining above, black or piceous, the antenne and

tarsi ferruginous. Rostrum sparsely punctate, slightly constricted towards the base, the apical portion

parallel-sided ; the antenne inserted at the middle. Prothorax long, subconical, feebly rounded at the

sides, densely, coarsely punctate, with an indication of a smooth, abbreviated, median line. Scutellum

+ The N.-American species incorrectly referred by Leconte to Macrorhyncolus, Woll. (Rhyncolus protractus,

Horn), and Macrancylus, Lec., seem to me to be better placed under the Rhyncolides than among the true

Cossonides,

HEPTARTHRUM —HIMATIUM. 23

not visible. Elytra broader than the prothorax, widened to the middle and rapidly narrowed thence to

the apex, transversely gibbous before the abrupt apical declivity, the humeri angular; with rows of

closely packed, extremely coarse, subtransverse punctures, the interstices very narrow, raised, irregularly

uniseriate-punctate. Beneath coarsely punctate. Anterior coxw separated by a little less than their

own width.

Length 23-22, breadth Z-1 millim.

Hab, GuatEemata, Totonicapam 8500-10,500 feet (Champion).

Six specimens, probably from beneath pine-bark.

** Scutellum visible, minute.

2, Heptarthrum costatipenne, sp.n. (Tab. I. figg. 24, 244.)

Moderately convex, oblong, shining, fusco-castaneous, the legs and antenne ferruginous. Rostrum finely and

somewhat closely punctate, the punctures becoming coarse and crowded at the base, the antenne inserted

at a little beyond the middle. Prothorax longer than broad, subconical, rounded at the sides posteriorly,

densely, coarsely punctate. Scutellum minute, transverse. LElytra slightly wider than the prothorax,

oblong-oval, the humeri distinct; with rows of closely packed, coarse, subtransverse punctures, the

interstices very narrow, raised, and obsoletely uniseriate-punctate.

Length 2,1,, breadth # millim. (7)

Hab. Mexico, Toxpam (Sallé).

One specimen. Smaller, narrower, and more shining than H. gibbipenne, the rostrum

rugosely punctate at the base, the short scutellum just visible, the elytra not widened

posteriorly.

3. Heptarthrum cordillera, sp. n. (Tab. I. fig. 25.)

Oblong-ovate, narrow, shining, black, the antenne, tarsi, base of the femora, and coxe ferruginous. Rostrum

very sparsely, finely punctate, the punctures becoming coarser and closer towards the base, the antennz

inserted at the middle. Prothorax long, gradually narrowing from near the base, constricted in front ;

closely, coarsely punctate, with indications of a smooth median line. Scutellum just visible. Elytra

scarcely wider than the prothorax, attenuate at the apex, the humeri distinct; with rows of coarse,

closely placed, subtransverse punctures, the interstices very narrow, feebly raised, and faintly uniseriate-

punctate. Beneath coarsely punctate. Anterior cox separated by nearly their own width.

Length 13-2, breadth 3-2 millim.

Hab. GuateMaa, Totonicapam 8500-10,500 feet (Champion).

Six specimens, found with H. gitbipenne. Smaller, narrower, and more shining

than H. costatipenne, the elytra subparallel at the base and with the interstices less

raised, &c.

HIMATIUM.

Himatium, Wollaston, Trans. Ent. Soc. Lond. 1878, pp. 486, 461, 542, 607 ; Leconte and Horn,

Proc. Am. Phil. Soc. xv. p. 426 (1876) ; Casey, Ann. N. York Acad. Sci. vi. p. 690.

The type of this genus is H. pubescens, Woll., from Malabar, and three others from

N. America and one from 8. Africa have since been recorded, one at least of these

24 RHYNCHOPHORA.

latter, H. errans, Lec., being closely related to the Indian insect. The funiculus is

distinctly 7-jointed in H. pubescens, but in the American forms known to me the

second joint is very short and difficult to detect.

1. Himatium rugicolle, sp. n. (Tab. I. fig. 26.)

Elongate, narrow, depressed, subopaque, ferruginous ; thickly clothed with rather coarse, semierect, curled,

blunt, ochreous sete, those on the elytra uniseriately arranged down each interstice. Head between the

eyes, and the rostrum also, densely, rugulosely punctate. Prothorax longer than broad, gradually

narrowing forwards, feebly constricted in front, narrower than the elytra; densely, shallowly, confluently

punctate, a smoother bare space in the centre at the apex excepted. Elytra moderately long, with rows

of oblong, coarse punctures, separated by flat, rugulose interstices, which are of about the same width

as the punctures. Legs short and stout.

Length 2, breadth 2 millim.

Hab. GuatTemata, Capetillo (Champion).

One specimen. Ixtremely like the N.-American ZH. errans, Lec. (examples of which,

and of H. conicum, Lec., have been sent me by Mr. Barber), but smaller, the prothorax

considerably narrower than the elytra and not so coarsely punctured, the elytra with

the seriate punctures more scattered and the interstices quite flat.

CATOLETHRUS.

Catolethrus, Schouherr, Gen, Cure. iv. p. 1077 (1888) ; viii. 2, p. 285 ; Wollaston, Trans. Ent. Soc.

Lond. 1873, pp. 487, 474, 557, 617.

3. Phacegaster, Wollaston, loc. cit. pp. 437, 476, 559.

This is one of the most easily recognized Cossonid genera inhabiting Tropical

America, all the species * having the inner dorsal striee of the elytra deeply impressed

and divergent on the apical declivity (fig. 27 b)—a form of sculpture suggestive of that

of various Scolytide. Phacegaster, Wollaston, was based upon the male of Catolethrus

nasalis, Boh., this insect, like C. fallax, having the rostrum flattened at the base and

much broader than in the same sex of C. longulus, the peculiar femoral and ventral

characters ascribed to it being present in the type (¢) of the genus Catolethrus,

C. longulus. The female of Phacegaster nasalis (= Catolethrus leviusculus, Woll.) is

a typical Catolethrus. The species captured by myself in Central America were found

in sappy wood, particularly, I believe, of Musaceous plants. The four forms may be

grouped thus :—

Rostrum subcylindrical in both sexes, slender in 9. [CaroLeTHRvs. |

Hlytra with the sides indeterminately refescent and the sutural region

darker; prothorax sparsely punctured ; first ventral segment deeply

excavate and 4-foveatein @ . . . 2... we. dongulus, Boh.

* The Tahitian and other forms referred to it belong elsewhere.

Le)

CATOLETHRUS.

Elytra with the sides abruptly rufo-fulvous and the sutural region black;

prothorax closely punctate . . . 2. 1. . ee ee ee se fulvolimbatus, sp. n.

Elytra black ; first ventral segment almost unimpressed in ¢ . . . . ebeninus, sp. n.

Rostrum flattened and much broader in g, slender and cylindrical in 2 ;

first ventral segment excavate and 4-foveate in g. [Puacueasrnr.]. fallax, Boh.

1. Catolethrus longulus. (Tab. I. figg. 27, 27 4, 4, 3.)

Catolethrus longulus, Boh. in Schénh. Gen. Cure. iv. p. 1078*; viii. 2, p. 285°.

Rhyncolus tenuirostris, Schouh. in litt.’

3. Rostrum stout, moderately curved ; femora closely set along their lower edge with short, fulvous, hair-

like scales; ventral segments 1 and 2 broadly and deeply excavate down the middle, and each with two

very small, transversely placed, rugulose fovex in the excavation (the fovez on 1 widely separated, those

on 2 subcontiguous and placed near its anterior margin), 5 with a very large, transverse fovea in

the middle (fig. 27 a).

Q. Rostrum with the anterior portion polished, a little longer, arcuate, and more slender, appearing more

abruptly thickened at the base.

Hab. Mexico }2(Truquit, in Mus. Brit.), San Andres Tuxtla, Toxpam, Tabasco (Sa//é),

Las Vigas (Hoge), San Francisco (Wickham), Motzorongo (Mohr); GuatmMata, Trece

Aguas (Barber & Schwarz, in U.S. Nat. Mus.), Cahabon, Chiacam, San Juan, Chacoj,

Senahu, Tamahu, and San Gerénime in Vera Paz, Zapote, Guatemala city, Capetillo,

Duefias (Champion); Nicaragua, Escondido River (Richmond, in U.S. Nat. Mus.),

Chontales (Janson); Panama, Bugaba, Volcan de Chiriqui (Champion).

A common insect in Central America and apparently replaced southward by C. fadlaw.

The elytra usually have the sides broadly and indeterminately rufescent, but the entire

body is sometimes almost wholly black, or ferruginous with a darker space along the

suture. The peculiar ventral and femoral characters of the male have hitherto

escaped notice.

2. Catolethrus fulvolimbatus, sp.n. (Tab. I. fig. 28, 2.)

Very elongate, narrow, subfusiform, alutaceous, moderately shining, piceous, the elytra with the sides broadly

rufo-fulvous and the sutural region black, the antenne (the club excepted), tip of the rostrum, and tarsi

ferruginous. Head closely, finely punctate, deeply transversely sulcate between the eyes ; rostrum com-

paratively slender, cylindrical, widened towards the base and apex, somewhat closely punctate; antennz

with a rather slender funiculus and a moderately stout club. Prothorax oblong-oval, much longer than

broad, strongly constricted in front; closely, somewhat coarsely punctate, with an abbreviated impunctate

median line. Scutellum strongly transverse, smooth. Elytra scarcely wider than the prothorax, gradually

narrowing from the base, the apices bluntly and separately rounded ; somewhat coarsely seriate-punctate,

the punctures placed in faint striae, the two inner strie divergent at the apex, the interstices flat, minutely

uniseriate-punctate, the second and third raised and convex on the apical declivity, the third and ninth

confluent just before the tip. Legs short ; femora unarmed ; tarsi rather narrow.

Length 42, breadth 1 millim. (.)

Hab. Panama, Bugaba (Champion).

One female, differing from specimens of the same size and sex of C. longulus in the

longer and more slender rostrum, the closely and strongly punctured prothorax, the

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1909. EE

26 RHYNCHOPHORA,

broader scutellum, and the rufo-fulvous elytra, with a broad sharply-defined black

sutural stripe. From the Venezuelan C. interstitialis, Faust, the type (2) of which I

have seen, the present species may be known by its narrower less depressed form, the

smooth median line on the prothorax, the less elongate elytra, the darker legs, &c.

3. Catolethrus ebeninus, sp.n. (Tab. I. fig. 29, ¢.)

Elongate, shining, black, the antennz at the base or entirely, and sometimes the tarsi also, ferruginous.

Head with a few minute scattered punctures, transversely grooved between the eyes; rostrum ( ¢ ) stout,

subcylindrical, feebly curved, distinctly widened at the apex and behind the middle, sparsely, finely

punctate, (2) shorter, arcuate, much more slender, and almost smooth. Prothorax (d) longer than

broad, suboval, about. equally narrowed in front and behind, abruply constricted and tubulate at the

apex, sparsely, finely punctate, except along a narrow space down the middie, ( 2 } less elongate and not

so abruptly constricted in front. Scutellum small, transverse. Elytra very little wider than the pro-

thorax, gradually narrowing from the base, the apices each rather broadly and bluutly rounded; finely

seriate-punctate, the punctures placed in fine shallow strie, the two inner strie divergent at the apex,

the interstices flat, minutely uniseriate-punctate, the first (sutural) and third raised and convex on the

apical declivity, the third and ninth confluent just before the tip. Beneath sparsely, somewhat coarsely

punctate, the first ventral segment very slightly depressed down the middle in the ¢. Legs short and

stout, the femora so abruptly excavate near the tip as to appear subdentate, glabrous in the ¢ ; tibiw

sinuate within in both sexes.

Length 34-44, breadth 1-14 millim. (¢ 9.)

Hab. Mexico, Motzorongo in Vera Cruz (Flohr: ¢); British Honpuras, Belize

(Blancaneaur: 3).

Two males and one female. A smaller, less elongate female (length 3 mm.) from

Las Vigas, Mexico (Hége), piceous in colour, with more slender antenne and more

deeply punctate-striate elytra, doubtless belongs to the same species. This insect is

relatively less elongate and distinctly broader than C. dongudus, the rostrum is shorter,

the prothorax is more rounded at the sides, the legs are shorter and stouter, the elytra

are uniformly coloured, and the abdomen is neither foveate nor excavate in the male.

C. basalis, Woll., is another allied form.

4. Catolethrus fallax. (Tab. I. figg. 30, 30a, 3.)

Catolethrus fallax, Boh. in Schénh. Gen. Cure. vill. 2, p. 285 (3) ’.

¢. Rostrum moderately curved, very stout, broad, slightly widened at the apex and at the basal third,

depressed (and sometimes slightly hollowed down the middle) at the base, closely, finely punctate ; femora

almost glabrous beneath ; ventral segments 1 and 2 excavate and bifoveate as in C. longulus, the fovee

on 2 sometimes coalescent, 5 also with a large deep foveiform depression (fig. 30 a).

2. Rostrum arcuate, much more slender, cylindrical, widened towards the base, very sparsely, finely punctate.

Hab. Nicaragua, Chontales (Janson: 6 2); Panama, Bugaba (Champion: 3 ).—

CotomBia (Mus. Brit.: 3); Vunezveta, Caracas!; BraziL, Parad (coll. Fry: 3 2);

ANTILLES, St. Vincent, Leeward side (H. H. Smith: 3).

Broader and more robust than C. longulus, the elytra subtruncate at the apex, the

femora more strongly clavate, the posterior pair sometimes armed with a small tooth,

the tarsi stouter ; the rostrum of the male almost as broad as in the Brazilian C. nasalis,

CATOLETHRUS.—PSEUDEUCOPTUS. 27

Boh. (the type of Wollaston’s genus Phacegaster), that of the female relatively shorter,

more curved, and very little stouter than in the same sex of C. longulus; the inter-

mediate tibize of the male more strongly sinuate within. The numerous specimens of

C. fallax before me vary greatly in size and colour, the female from Chontales having

the elytra rufo-testaceous, while the example from St. Vincent is a small poorly-

developed male. ‘I'he male of C. nasalis has the posterior tibize curved and furnished

with a dense fascicle of long fulvous hairs on the inner side near the base, and the

depression on the fifth ventral segment carinate down the middle; the female

(0. leviusculus, Woll.) has a longer and less curved rostrum than the same sex of

C. fallax.

PSEUDEUCOPTUS, sp. n.

Head strongly exserted, porrect, cylindrical, constricted on each side posteriorly, the eyes transverse, depressed,

and distant from the base ; rostrum stout, nearly twice as long as the exposed portion of the head, slightly

widened at the tip, and with small tuberculiform pterygia, the scrobes extending backward to the eyes,

the antenne inserted at about the middle, the funiculus 7-jointed, the club rather small, acuminate-ovates

abrupt; prothorax elongate, constricted and tubulate in front, truncate at the base, and with the disc

very broadly depressed down its entire length ; scutellum subtriangular, large, flat; elytra elongate,

subparallel, not wider than the prothorax, broadly flattened; coxee widely separated, the anterior pair

especially ; prosternum much longer than the moderately elongate metasternum, and with a transverse

sulcus between the coxe ; ventral segments 1 and 2 connate, the suture between them almost obliterated ;

legs short and stout ; femora strongly clavate and compressed, slender at the base; tibie with a long

claw at the outer apical angle, the anterior pair angularly dilated on the inner side at about the middle,

the others triangular ; tarsi with joints 1-3 equal in length, 3 simple, 4 comparatively stout, barely as

long as 2 and 8 united, the claws minute, free; body strongly depressed, very elongate, narrow, almost

glabrous.

Type, P. macrocephalus.

This genus is perhaps nearest allied to the Tropical-American Eucoptus, Woll., but

the unique insect referred to it is more like a Catolethrus, with the body flattened as

in the eastern Jsotrogus. It is remarkable on account of its long, porrect head,

unusually elongate prothorax, short, stout legs, and very depressed body. The type is

probably a male, and the female may have a more slender rostrum. Hucoptus extends

to Cuba, but it is not represented in the Central-American collections before me.

1. Pseudeucoptus macrocephalus, sp. n. (Tab. I. fig. 31.)

Moderately shining, black, the antenne, knees, tibiw, and tarsi piceous or fusco-ferruginous, the tip of the

rostrum and the outer half of the dise of the elytra rufescent. Head very sparsely, minutely punctate,

the rostrum closely, subrugosely punctured in its basal half, becoming much smoother at the tip. Pro-

thorax nearly one-half longer than broad, arcuately narrowed anteriorly to the short, narrow, tubulate

apical portion; very finely alutaceous and with minute scattered punctures, the depressed disc with a distinct

narrow median groove anteriorly, which becomes obsolete towards the base. Elytra less than twice the

length of the prothorax, conjointly rounded at the apex; shallowly striate, the strie feebly punctate, the

interstices flat, alutaceous, and obsoletely uniseriate-punctate. Beneath sparsely, finely punctate ; first

ventral segment almost unimpressed, the fifth transversely depressed posteriorly.

Length 34 (with rostrum 4), breadth # millim. (<¢?)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen.

EE 2

28 RHYNCHOPHORA.

MICROMIMUS.

Micromimus, Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 437, 481, 564, 622.

Three Tropical-American forms were included by Wollaston in Micromimus, which

is recognizable by the strongly transverse, depressed eyes, the eyes themselves (as in

LTipancylus, Woll.) being placed at the sides of the large, globose portion of the head

immediately behind the short, stout, subcylindrical rostrum. In M/. nigrescens and some

of the new species now added the disc of the prothorax is often more or less depressed

along the median line, and apparently more distinctly so in the male than in the female.

The tarsal claws are minute and free. The seven members of the genus known to

me may be separated thus :—

a. Eyes coarsely facetted, large, and descending.

a’. Prothorax very feebly subapically constricted ; apices of elytra conjointly

rounded: body ferruginous . . . continuus, sp. 0.

b. Prothorax distinctly subapically constricted.

*, Apices of the elytra conjointly rounded.

wp Elytra punctato-sulcate, with narrow costiform interstices: body

ferruginous . 2. 6 6 ee we ee ee . . . [batesi, Woll.]

6°, Elytra crenato-striate, with the interstices about as wide as the seriate

punctures.

. Body piceous, the elytra rufescent; rostrum longer . . . . . minimus, Boh.

i Body ferruginous; rostrum very short. . . . » . . . « [pumilio, Woll.]

6°. Apices of elytra broader, bluntly, conjointly rounded, very slightly

dehiscent at the sutural angle: body piceous . . ... . . nigrescens, Woll.

*, Apices of elytra separately rounded, dehiscent at the sutural angle :

body ferruginous . . . see eee ee ew ww we.) dehiscens, sp. n.

b. Eyes more finely facetted, smaller, transversely oval; apices of elytra

explanate laterally and separately rounded at the tip; body above and

beneath coarsely punctured, testaceous . . . . . 1... . . « « cribrosus, sp. n.

1. Micromimus continuus, sp. n. (Tab. I. figg. 32, 32a.)

Elongate, subfusiform, narrow, shining, fusco-ferruginous or ferruginous. Head slightly depressed and

obsoletely foveate between the eyes, the latter very large and extending downward; rostrum short,

stout, subcylindrical, finely punctate. Prothorax a little longer than broad, narrowing from near the

base, the subapical constriction almost obsolete on the disc; closely, finely punctate, and with a faint

median groove. Elytra distinctly wider than the prothorax, moderately long, the apices produced and

somewhat narrowly, conjointly rounded ; crenato-striate, the interstices obsoletely uniseriate-punctate.

Beneath sparsely, finely punctate; first ventral segment with a shallow transverse impression in the

middle at the apex in the ¢.

Length 24-2,%,, breadth 4 millim.

Hab. Panama, Volcan de Chiriqui 2000-4000 ft. (Champion).

Two specimens, assumed to be male and female. Very like W. dehiscens, but with

the apices of the elytra less explanate and conjointly rounded, the prothorax closely,

MICROMIMUS. 29

finely punctate and with the subapical constriction indistinct, the head less depressed

between the eyes, the rostrum cylindrical. Less elongate than M. batesi, Woll., from

Brazil, the elytral interstices as wide as the stric, the striz narrower and not so deeply

impressed, the prothorax less constricted in front, &c.

2. Micromimus minimus, (Tab. I. figg. 33, 33 a.)

Phleophagus minimus, Boh. in Schénh. Gen. Cure. iv. p. 1053 °.

Hab. Mexico, Orizaba (coll. Chevrolat +); British Honpuras, Rio Sarstoon (Blanea-

neaux); GuateMALA, El Tumbador, Panajachel, Guatemala city (Champion); Nicaragua,

Managua (Solari); Panama, Bugaba (Champion).

Dr. Sjéstedt informs me that he is unable te find the type of this species at Stockholm,

but there can be little doubt of its identification, the dark head, rostrum, and prothorax

and the rufescent elytra being characteristic. Our numerous specimens from Guatemala

city, &c., are of about the same size (length 2-25 mm.) as M. pumilio, Woll., from

Trinidad, from which they differ in their longer rostrum, the more coarsely and more

diffusely punctured prothorax, &c. The prothorax is usually longitudinally impressed

and coarsely, irregularly biseriate-punctate down the middle. The elytra are deeply

crenate-striate, with the interstices of about the same width as the punctures. The

male has the rostrum stouter and more closely punctured than in the female, and the

first ventral segment shallowly sulcate. An allied unnamed form from Cayamas, Cuba,

in the U.S. Nat. Museum, is labelled as having been found on a Ceiba-tree.

3. Micromimus nigrescens. (Tab. I. figg. 34, 34.)

Micromimus nigrescens, Woll. Trans. Ent, Soc. Lond. 1873, p. 623 ‘,

Hab. Mzxico (Truqui, in coll. Fry); Guatemata, Purula in Vera Paz, Cerro Zunil

(Champion).

Found in numbers at Cerro Zunil, on the Pacific slope. An elongate piceous or

fusco-castaneous form, with the prothorax usually longitudinally impressed, and more

or less distinctly biseriate-punctate, down the middle. The male has the rostrum

stouter and more closely punctate than the female, and the first ventral segment

transversely depressed in the centre behind. The large, strongly transverse, coarsely

facetted eyes, placed just behind the rostrum at the sides of the globose portion of the

head, distinguish M. nigrescens from various somewhat similar forms.

4, Micromimus dehiscens, sp. n.

Elongate, subfusiform, narrow, shining, fusco-ferruginous or ferruginous. Head almost smooth, transversely

grooved and feebly foveate between the eyes, the latter very large, extending downward, and coarsely

facetted ; rostrum (¢) short and stout, closely punctate, depressed or shallowly sulcate at the base, ( 9 ) a

little narrower and smoother, subcylindrical. Prothorax slightly longer than broad, narrowing from near

the base, constricted in front, the sides rounded posteriorly ; rather coarsely, thickly punctate, and sometimes

30 RHYNCHOPHORA.

with a faint longitudinal median groove. Elytra moderately long, not or very little wider than the

prothorax, produced at the apex, the apices subexplanate, separately rounded, and distinctly dehiscent

at the sutural angle ; crenato-striate, the interstices somewhat convex and obsoletely uniseriate-punctate.

Beneath sparsely, finely punctate; first ventral segment with a shallow transverse impression in the

middle at the apex in both sexes.

Length 21-3, breadth 3-4 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 2000-3000 ft. (Champion).

Six specimens. Recognizable by its large, downwardly-extended eyes, the separately

rounded apices of the elytra, and the ferruginous or fusco-ferruginous colour. In one

of the males the rostrum is shallowly grooved down the middle towards the base. ‘The

median groove on the prothorax is more pronounced in the male, the disc being

completely unimpressed in two of the females obtained. The closely allied MW. batesz,

Woll., has the apices of the elytra conjointly rounded, as in VW. continuus.

5. Micromimus cribrosus, sp. n. (Tab. I. figg. 35, 35 a.)

Elongate, subfusiform, somewhat robust, shining, testaceous. Head smooth; eyes strongly transverse, oval,

depressed, moderately large; rostrum short, stout, feebly curved, cylindrical, closely, finely punctate.

Prothorax as long as broad, subconical, constricted in front, rounded at the sides posteriorly, subtruncate

at the base ; coarsely, somewhat closely, subuniformly punctate, unimpressed along the median line.

Scutellum smooth. Elytra moderately long, scarcely wider than the prothorax, very gradually narrowing

from the base, produced at the apex; coarsely crenato-striate, the interstices feebly convex, almost

smooth, the seventh and ninth raised and confluent near the tip, together forming a prominent ridge

around the apical margin. Beneath coarsely punctured. Legs stout.

Length 31, breadth 1 millim. (@.)

Hab. British Honpuras, R. Sarstoon (Blancaneauz).

One specimen, perhaps a little immature. Separable from the other members of the

genus by its more robust build, the coarsely punctured upper and under surfaces, and

the prominent marginal ridge at the apex of the elytra. The eyes are relatively smaller,

sore finely facetted, and less transverse than in MM. nigrescens.

STENOMIMUS.

Stenomimus, Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 437, 480, 564, 622; Leconte, Proc. Am.

Phil. Soc. xv. pp. 837, 839 (1876).

Allomimus, Leconte, loc. cit. xv. pp. 837, 389; Casey, Ann. N. York Acad. Sci. vi. p. 692.

Stenomimus and Allomimus were both based upon single species—S. fryi, Woll.,

from Brazil, and A. (Cossonus) dubius, Horn, from Illinois,—and one or two N.-American

forms have since been added to each of them by various writers. The numerous small

species now known from Central America * connect these two genera, the rather less

oblique scrobes of Allomimus dubius being perhaps due to the very small eyes in that

insect. ‘They have the head globose and almost smooth, and slightly depressed or

* Allied unnamed forms occur in the West Indies.

STENOMIMUS. ol

foveate between the eyes; the rostrum cylindrical or subcylindrical, not in the least

dilated at the tip; the eyes rather prominent in the typical Stenomimi, smaller and

more depressed in Allomimus, and placed, as it were, at the sides of the rostrum

immediately in front of the globose portion of the head; the antennal club abrupt, the

funiculus 7-jointed; the prothorax suboval or subconical; the scutellum small, but

conspicuous; the elytra deeply punctate-striate or punctato-sulcate, the sutural stria

often deeper and broader than the others, the outer interstices narrow and the inner

ones not wider than the striz ; the anterior coxe (except in S. guichensis) separated by

at least their own width ; the tibiz more or less acute or mucronate at the inner apical

angle, the anterior pair sinuate within; and the tarsal claws small. The ventral

excavation of the male is usually large, and often extends forward on to the meta-

sternum. 8. verepacis, S. rufipes, &c., approach Allomimus; S. wollastoni, S. guate-

malensis, &c., are related to S. fryi; S. rugirostris has a finely pubescent body, &c.,

and it may have to be removed eventually and placed near Carphonotus. Mr. Barber

has kindly forwarded examples of three of the N.-American forms for comparison, and

I am therefore enabled to include them in the subjoined ‘Table * :—

a. Body glabrous or subglabrous ; prothorax distinctly narrower than the

elytra.

a’. Rostrum long or moderately long, comparatively slender, cylindrical

(shorter in S. dirutus). [| Srsnomimus, Woll. |

a’. Antenne inserted just behind the middle; rostrum about three-

fourths the length of the prothorax; elytra coarsely punctato-

sulcate : body nigro-piceous, depressed, elongate. . . . . filtrostris, sp. n.

B®. Antenne inserted at or just beyond the middle; eyes rather

prominent.

a’. Prothorax abruptly constricted and tubulate in front; antennal

club rather elongate; elytra much broader than the prothorax,

deeply punctato-sulcate ; anterior tibiz (¢) sharply mucronate

at the apex within: hody black. . . . 2. 1... .) .) .) armatus, sp. n.

b*. Prothorax moderately or feebly constricted in front, oval or sub-

conical.

a‘. Disc with indications of an irregular double series of coarser

punctures towards the base, and also more or less depressed,

down the middle.

a’, Elytra coarsely punctato-sulcate . . . . . . . . . dirutus, sp. n.

6°. Elytra more finely punctato-sulcate . . . . . . . . wollastoni, sp. n.;

[fryt, Woll.].

b*. Disc uniformly punctate and unimpressed . . . . . . . ovaticollis, sp. n.;

guatemalensis, sp. n.; [ pallidus, Boh. |.

"* Rhyncolus corticalis, Boh., said by Schwarz to be an Allomimus allied to A, dubius, is unknown to me.

S. pallidus (Boh.) was referred by Schénherr to Phiwophagus,

2 RHYNCHOPHORA.

oN)

b'. Rostrum comparatively shorter and stouter ; prothorax subconical or

suboval, moderately or feebly constricted in front. [ ALLomimus, Lec. |

a®, Anterior coxz separated by at most their own width ; eyes very

small and depressed ; elytra coarsely punctato-sulcate.

a", Prothorax with the punctuation a little more diffuse along the

middle of the disc . . . 1. ew ee ew ew wee we) VET PACIS, SP. N. 5

[ dubius, Horn |.

6". Prothorax uniformly punctate. . . . . « « . «© « « « rhyncolvides, sp. n. ;

quichensis, sp. nu. ; rufipes, sp. n.

6°. Anterior cox widely separated ; eyes a little more prominent ;

prothorax uniformly punctate; elytra moderately coarsely punc-

tato-sulcate 2. 1 1 ewe ee ee ee we we «LL politus, Casey. |

6. Body very finely pubescent; rostrum long and rugose ; prothorax and

elytra®subequal in width, the prothorax long and densely punctate. . rugirostris, sp. n.

1. Stenomimus filirostris, sp.n. (Tab. II. fig. 1, 3.)

Elongate, depressed, shining, nigro-piceous, the rostrum, base of the antenna, and tips of the tarsi ferruginous.

Head depressed between the eyes, the latter small, transverse, and separated above by considerably less

than the width of the rostrum ; rostrum feebly curved, cylindrical, comparatively slender, about three-

fourths the length of the prothorax, sparsely, finely punctate, the punctuation coarser at the base, the

antenne inserted just behind the middle. Prothorax as long as broad, somewhat conical, rounded as

the sides posteriorly, the subapical constriction conspicuous on the flanks, scarcely traceable above ;

densely, rather coarsely punctate, the punctures becoming more diffuse along the middle of the disc.

Scutellum smooth. LElytra long, wider than the prothorax, parallel in their basal half, bluntly, conjointly

rounded at the tip; coarsely, deeply punctate-striate, the interstices narrow, convex at the apex, and

finely uniseriate-punctate. Anterior coxee separated by their own width. Beneath somewhat coarsely,

closely punctate ; metasternum flattened down the middle posteriorly, ventral segments 1 and 2 with a

shallow median groove. Anterior tibiee angularly dilated and ciliate at the middle within. Third tarsal

joint widened and sub-bilobed.

Length 23, breadth # millim. (¢.)

Hab. GuaTEMALA, Purula in Vera Paz (Champion).

One specimen, evidently a male, to judge from the ventral excavation. More

elongate and less convex than S. armatus, the rostrum longer, smoother, and more

slender, the antennal club less acuminate, the transverse subapical groove of the

prothorax obliterated above, the elytra longer, more coarsely and not so deeply

punctate-striate, the tibia: less acute at the inner apical angle.

2. Stenomimus armatus, sp.n. (Tab. II. figg. 2, 2a, ¢.)

Moderately elongate, rather shining, black, the tip of the rostrum and base of the antenne rufescent, the legs

rufo-piceous. Head almost smooth, flattened between the eyes, the latter transverse, oval, and slightly

prominent ; rostrum moderately stout, curved, rather long, closely punctate, the antennz inserted just

beyond the middle, the club acuminate-ovate. Prothorax a little longer than broad, gradually narrowing ©

from near the base to the strong subapical constriction; densely punctate, except along the narrow,

smooth, abbreviated, median line. Elytra considerably wider than the prothorax, parallel at the base,

gradually narrowing from about the middle, conjointly rounded at the apex; punctato-sulecate, the sutural

stria broader and deeper than the others, the interstices becoming very narrow outwards, convex on the

STENOMIMUS. 535)

apical declivity, obsoletely uniseriate-punctate. Anterior coxe separated by about their own width,

Beneath finely, somewhat closely punctate; metasternum broadly flattened down the middle posteriorly

and the first ventral segment deeply excavate. Anterior tibie sharply, and the others more feebly,

toothed at the inner apical angle, the anterior pair angularly dilated and ciliate at the middle within.

Third tarsal joint widened and sub-bilobed.

Length 24, breadth 4 millim. (¢.)

Hab. GuateMata, Cerro Zunil, Pacific slope, 4000 feet (Champion).

One male. Recognizable by its comparatively long rostrum, the rather long,

acuminate antennal club, the densely punctured prothorax, which is strongly constricted

in front, the posteriorly narrowed, deeply punctato-sulcate elytra, and the sharply

toothed inner apical angle of the anterior tibie. The elytra are less abruptly narrowed

towards the apex than in most of the allied forms. The rostrum is shorter, stouter,

and more distinctly punctured than in S. filirostris.

3. Stenomimus dirutus, sp. n.

Moderately elongate, narrow, depressed, shining, nigro-piceous, the tip of the rostrum, the shoulders of the

elytra, the antenne, and tarsi ferruginous. Head almost smooth, transversely depressed and feebly

foveate between the eyes, the latter transverse and somewhat prominent ; rostrum stout, short, curved,

sparsely, finely punctate, smoother at the tip, the antenna inserted just beyond the middie. Prothorax

almost as long as broad, obliquely narrowing from near the base to the subapical constriction; closely

punctate, except along the narrow depressed median space, in which two irregular rows of coarser

punctures are visible posteriorly. Elytra moderately long, subparallel in their basal third, produced at

the apex, the apices conjointly rounded and somewhat explanate laterally ; coarsely punctato-sulcate,

the interstices narrow, convex, and each with a scattered row of very minute punctures. Anterior coxe

separated by about their own width. Beneath rather closely and coarsely punctured ; metasternum

towards the apex and first ventral segment broadly depressed down the middle. Anterior tibie strongly

sinuate within.

Length 21, breadth 3 millim. (<¢.)

Hab. Guaremata, Cerro Zunil, Pacific slope (Champion).

One male. Extremely like S. verepacis, but a little more elongate, the rostrum

slightly longer, the antenne inserted nearer the tip, the eyes rather larger, the

prothorax depressed down the middle posteriorly and with two rows of coarser

punctures in the depression.

4. Stenomimus wollastoni, sp. n.

Subfusiform, narrow, shining, varying in colour from black, with the elytra piceous and the tip of the rostrum,

the apical half of the abdomen, the antennex, and legs ferruginous, to entirely testaceous (immature).

Head smooth, the eyes rounded and rather prominent; rostrum subcylindrical, comparatively slender,

more than half the length of the prothorax, sparsely punctate, the punctures becoming more crowded

tuwards the base, that of the Q a little smoother. Prothorax as long as broad, suboval, rapidly narrowing

forwards, constricted in front; somewhat thickly punctate, the punctuation more diffuse on the disc, the

latter usually with a shallow longitudinal impression. Scutellum smooth. Elytra moderately long,

conjointly rounded at the apex, scarcely wider than the prothorax, deeply punctate-striate, the sutural

stria broader and deeper than the others, the interstices about as wide as the striz, minutely uniseriate-

punctate. Anterior cox separated by a little more than their own width. Beneath closely punctate ;

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 7, October 1909. FE

34 RHYNCHOPHORA.

first ventral segment broadly excavate down the middle in the d, the depression extending for some

distance forwards on to the long metasternum. Third tarsal joint a little wider than the second.

Length 12-23, breadth 3-3? millim. (do @.-)

Hab. Guatemata, Capetillo and Zapote, Pacific slope (Champion).

Eleven specimens, three only of which are fully coloured. Near S. fryi, Woll.,

from Brazil, but less depressed, the rostrum longer and smoother, the puncturing of

the prothorax and elytral strie stronger, this last-mentioned character also separating

S. wollastoni from the N.-American S. pallidus (Boh.). ‘The ventral depression of the

male is large. The anterior coxe are widely separated.

5. Stenomimus ovaticollis, sp. n.

Elongate, narrow, shining, black or nigro-piceous, the tip of the rostrum, the base of the antenne, and the

tarsi more or less ferruginous. Head almost smooth, the eyes transverse, rounded, and somewhat

prominent ; rostrum cylindrical, rather slender, curved, about half the length of the prothorax, sparsely,

finely punctate. Prothorax about as long as broad, oval, rapidiy narrowing from the basal third and

constricted in front; closely, finely, uniformly punctate. Elytra a little wider than the prothorax,

subparallel in their basal half, conjointly rounded at the apex ; deeply punctate-striate, the sutural stria

broader and deeper than the others, the interstices narrow, somewhat convex, and finely uniseriate-

punctate. Anterior coxe separated by distinctly more than their own width. Beneath closely, finely

punctate; metasternum excavate down the middle posteriorly, the first ventral segment broadly excavate

in the centre, and the fifth transversely depressed at the apex, in the ¢. Tibiz with a minute tooth at

the inner apical angle, the anterior pair sinuate within. Tarsi long, the third joint widened, the fourth

very slender and as long as the others united.

Length 24-22, breadth 3 millim. (¢.)

Hab. Guatemata, Totonicapam 8500-10,500 feet (Champion).

Six specimens, apparently all males, found near the summit of the Cordillera, and

doubtless taken under pine-bark. In this insect the prothorax is strongly rounded at

the sides posteriorly and rapidly narrowed thence to the subapical constriction. The

elytra are more rounded at the sides than in S. guatemalensis and the rostrum is

longer than in that species.

6. Stenomimus guatemalensis, sp.n. (Tab. II. fig. 3.)

Subfusiform, narrow, shining, varying in colour from black, with the antenna, legs, and tip of the rostrum

ferruginous, to entirely rufo-testaceous. Head smooth, the eyes rounded and somewhat prominent ;

rostrum rather short, stout, closely punctate to the tip. Prothorax slightly longer than broad, somewhat

conical, constricted in front; closely, finely, uniformly punctate, and sometimes with a faintly impressed

median line towards the base. Elytra barely wider than the prothorax, subparallel in their basal half;

deeply punctate-striate, the interstices narrow and finely uniseriate-punctate. Anterior coxe separated

by about their own width. Beneath closely punctate; ventral segments 1 and 2 depressed along the

middle in the ¢.

Length 13-2,1,, breadth 4-2 millim. (¢ 9.)

Hab. GuatTeMaLa, Capetillo and Zapote, Pacific slope (Champion).

Six examples, three of them fully coloured. Closely related to S. wollastoni, and

occurring at the same localities, differing from it in the shorter, stouter, closely

STENOMIMUS. 39

punctured rostrum, the more finely, uniformly punctured prothorax, the parallel elytra,

with more distinctly punctured interstices, and the narrower and shallower ventral

depression of the male. More convex than 8. fryi, the rostrum stouter, &c.; more

elongate than S. pallidus, the rostrum shorter and much stouter, the sculpture

coarser,

7. Stenomimus verzpacis, sp. n.

Moderately elongate, narrow, somewhat depressed, shining, nigro-piceous, the tip of the rostrum, the shoulders

of the elytra, the antenne, and tarsi ferruginous. Head almost smooth, transversely depressed and

feebly foveate between the eyes, the latter very small, transverse, and not very prominent; rostrum

short, stout, curved, closely, finely punctate at the base, much smoother at the tip, the antennae inserted

at the middle. Prothorax about as long as broad, suboval, constricted in front, closely, rather coarsely

punctate, without trace of median groove. Elytra a little wider than the prothorax, moderately

long, subparallel in their basal half, produced at the apex, the apices conjointly rounded and somewhat

explanate laterally ; coarsely punctatc-sulcate, the sutural stria deeper than the others, the interstices

narrow, convex at the tip, and each with a scattered row of almost obsolete punctures, Anterior coxe

separated by about their own width. Beneath rather closely and coarsely punctured; metasternum

towards the apex and first ventral segment broadly depressed down the middle. Anterior tibiew feebly

sinuate within.

Length 2, breadth # millim. (<¢.)

Hab. GuateMata, Balheu in Alta Vera Paz (Champion).

One male, probably found under pine-bark. Very like the N.-American Allomimus

dubius (Horn), the rostrum less curved, closely punctured at the base, the head more

distinctly foveate between the eyes, the latter depressed, the sculpture of the prothorax

and elytra not so coarse. From the Texan A. politus, Casey, it may be separated by

the more approximate anterior coxe, the less densely punctured prothorax, the laterally

explanate apices of the elytra, &c.

8. Stenomimus rhyncoloides, sp.n. (Tab. Il. figg. 4, 4a, ¢.)

Moderately elongate, shining, nigro-piceous, the tarsi ferruginous at the tip. Head faintly punctate anteriorly,

transversely flattened between the eyes, the latter very small, transverse, not prominent; rostrum feebly

curved, very stout, short, about twice as long as broad, closely punctate. Prothorax a little longer than

broad, gradually and obliquely narrowing from near the base to the subapical constriction ; densely,

uniformly punctate, without trace of median groove. Scutellum almost smooth, rather large. Elytra

moderately long, slightly wider than the prothorax, parallel in their basal half, produced at the apex,

the apical margins slightly explanate laterally ; punctato-suleate, the interstices narrow, convex at the

tip, obsoletely uniseriate-punctate. Anterior coxee separated by distinctly less than their own width.

Beneath closely, somewhat coarsely punctate ; first ventral segment transversely excavate in the middle

posteriorly. Femora stout, the anterior pair dilated and arcuately excavate near the apex above (fig. 4).

Anterior tibie very feebly sinuate on their inner edge.

Length 3, breadth 1 millim. (<¢.)

Hab. Guatemata, Quiché Mts., between 7000-9000 feet (Champion).

One male. <A robust form, with the general facies of a Rhyncolid, but undoubtedly

nearly allied to Allomimus dubius. The transverse excavation near the apex of the

anterior femora above may be due to scme injury.

FF 2

36 RHYNCHOPHORA.

9. Stenomimus quichensis, sp. n.

Moderately elongate, shining, nigro-piceous, the tip of the rostrum, the shoulders of the elytra, the femora,

and tibie reddish, the antenne and tarsi rufo-testaceous. Head almost smooth, transversely depressed

between the eyes, the latter very small, transverse, and not prominent; rostrum feebly curved, stout,

short, finely punctate. Prothorax as long as broad, suboval, gradually narrowed and slightly constricted

in front ; closely punctate, without trace of median groove. Scutellura smooth. Elytra a little wider

than, and about twice as long as, the prothorax, parallel in their basal half; punctato-suleate, the

interstices narrow, convex at the apex, and obsoletely uniseriate-punctate. Anterior coxe separated by

about their own width. Beneath rather finely and closely punctate; first ventral segment shallowly

depressed in the middle posteriorly. Anterior tibie feebly sinuate on their inner edge.

Length 23, breadth $ millim. (<¢ ?)

Hab. Guaremata, Quiché Mts., between 7000-9000 feet (Champion).

One specimen. This insect is so like S. rhyncoloides that at first sight it would

appear to be the sexual complement of the same species. It is, however, narrower

and less robust, the head is more deeply impressed between the eyes, the rostrum is

not so stout, the antenne are entirely rufo-testaceous, the prothorax is more finely and

less densely punctate, the anterior cox are more widely separated, the puncturing of

the under surface is finer, and the ventral excavation is shallower.

10. Stenomimus rufipes, sp. n.

Moderately elongate, somewhat convex, shining, nigro-piceous, the antenne, legs, and tip of the rostrum

ferruginous. Head almost smooth, transversely depressed between the eyes, the latter very small,

transverse, and not prominent ; rostrum very short and stout, less than twice as long as broad, sparsely,

finely punctate. Prothorax as long as broad, somewhat conical, very feebly constricted in front, the

sides rounded posteriorly ; closely, finely, uniformly punctate, without trace of median groove. Elytra

a little wider than, and about twice as long as, the prothorax, parallel in their basal third, conjointly

rounded at the apex; punctato-sulcate, the interstices narrow, convex on the apical declivity. Anterior

cox separated by their own width. Beneath somewhat closely punctate ; ventral segments 1 and 2

shallowly depressed down the middle.

Length 23, breadth # millim. (<¢.)

Hab. Mexico, Chilpancingo in Guerrero 4600 feet (ZZ. H. Smith).

One specimen. A rather robust form approaching the N.-American Allomimus

dubius, but larger and more elongate, with a shorter, less curved, much stouter rostrum,

the prothorax somewhat conical and closely, finely punctate, the elytra more rounded

at the apex and with the sulci not so coarsely punctate, the body nigro-piceous, the

limbs ferruginous.

11. Stenomimus rugirostris, sp. n. (Tab. II. fig. 5.)

Elongate, narrow, rather convex, moderately shining, black, the antenne ferruginous at the base, the legs,

and in one specimen (?immature) the elytra also, piceous, very finely pubescent. Head almost smooth,

the eyes rounded and rather prominent; rostrum cylindrical, curved, moderately long, rugosely punctate

to the tip in the ¢, smoother in its outer half and a little more slender inthe 9. Prothorax longer than

broad, somewhat oval, constricted in front; densely, rather coarsely punctate, the disc sometimes with

indications of a shallow median groove. Scutellum very small, smooth. Elytra oblong, subparallel in

their basal half, about as wide as the prothorax, conjointly rounded at the tip; deeply punctate-striate,

STENOMIMUS.—TYTTHOMIMUS., 37

the sutural stria deeper than the others, the interstices very narrow, somewhat convex, and irregularly

uniseriate-punctate. Anterior coxe separated by about their own width. Beneath closely punctate ;

first ventral segment broadly and deeply excavate down the middle, and the fifth transversely depressed

towards the apex, in the ¢. ‘Tibie distinctly mucronate at the inner apical angle. Third tarsal joint

rather broad.

Length 23-23, breadth 2-2 millim. (¢ 2.)

Hab. Guatemata, Volcan de Agua §500-10,500 feet (Champion).

Two pairs. Differs from the other species referred to Stenomimus in its rather

convex, finely pubescent body, rugose rostrum, densely punctured, long, suboval

prothorax (which in one male is wider than the elytra), and relatively narrow elytra.

The ventral excavation of the male is broad and deep.

TYTTHOMIMUS, gen. nov.

Eyes placed just in front of the globose portion of the head, moderately large, rounded, not prominent,

somewhat approximate above; rostrum cylindrical, feebly arcuate, the antenn inserted at or just

beyond the middle, with an ovate, abrupt club, the serobes obliquely descending ; head transversely

depressed or foveate between the eyes ; prothorax suboval, not so long as broad, feebly constricted at the

sides in front ; scutellum small; elytra with narrow punctured striz separated by broader interstices,

obtusely produced at the apex; anterior coxa separated by considerably less than their own width; third

tarsal joint a little wider than the second, simple ; body narrow, oblong, almost glabrous.

Type, 7. rubicundus.

The three small species included under this genus are nearly related to Stenomimus,

but they seem to be best separated from it. They are all of a ferruginous or rufo-

testaceous colour, and have a cylindrical rostrum, subapproximate, moderately large,

not very prominent eyes, narrowly punctate-striate elytra, and not very widely separated

anterior coxe. The ventral excavation of the male of 7. rudicundus is peculiarly

shaped. Tytthomimus differs from Micromimus in the position of the eyes; from

Caulophilus in the more slender limbs, &c. ; and from the various forms here referred

to Rhyncolus in having the rostrum more distinctly separated from the head.

1. Tytthomimus rubicundus, sp.n. (Tab. II. fig. 6, ¢ .)

Oblong-ovate, narrow, rather convex, shining, ferruginous. Head smooth, shallowly transversely grooved and

narrowly foveate between the eyes, the latter large; rostrum short and stout, feebly curved, sparsely,

very finely punctate, smooth along the median line. Prothorax a little broader than long, somewhat

oval, feebly constricted in front; closely, finely punctate, except. along a rather narrow smooth space on

the middle of the disc. Scutellum conspicuous, smooth. Elytra moderately long, slightly wider than

the prothorax, subparalle] to near the middle, the apices broadly produced, somewhat explanate, and

each bluntly and separately rounded at the tip ; punctate-striate, the interstices broader than the striz,

flat on the disc, convex at the apex, the ninth subcostate from about the basal third, each finely uniseriate-

punctate. Beneath sparsely punctate; first ventral segment witha. broad, deep excavation, in the centre

of which posteriorly is a transverse tuberculiform prominence, the fifth segment shallowly foveate; first

ventral suture strongly sinuate. Tibie with a minute tooth at the inner apical angle, the anterior pair

sinuate within.

Length 22, breadth g milum. (d.)

Hab. Guatemata, El Tumbador 3500 feet, Pacific slope (Champion).

35 RHYNCHOPHORA.

One male. More shining than its allies, the prothorax with a broader smooth space

on the middle of the disc, the ventral excavation (¢} deep and with a transverse

prominence in the centre behind, thus appearing arcuate in shape.

2. Tytthomimus rufotestaceus, sp. n.

Oblong-ovate, narrow, moderately shining, faintly alutaceous, ferruginous or rufo-testaceous. Head almost

smooth, transversely depressed and sometimes foveate between the eyes, the latter moderately large and

separated by less than their own width ; rostrum short, stout, feebly curved, parallel-sided in its outer

half, sparsely, very finely punctate, the antenne inserted at the middle. Prothorax not quite so long as

broad, suboval, the subapical constriction indistinct, obliterated above; closely, finely punctate, with an

abbreviated smooth median line at the base. Scutellum almost smooth, conspicuous. Elytra moderately

long, a little wider than the prothorax, subparallel in their basal half, broadly produced at the apex, the

apices somewhat explanate and bluntly, separately rounded; narrowly punctate-striate, the interstices

broader than the striz, convex at the apex, finely uniseriate-punctate. Beneath sparsely, finely punctate ;

first ventral segment broadly depressed down the middle anteriorly in the gd. Tibiz feebly mucronate

at the inner apical angle, the anterior pair sinvate within.

Length 2-2,4,, breadth 2-2 millim. (¢ 2.)

Hab. GuateMata, Trece Aguas in Alta Vera Paz (Barber & Schwarz, in U.S. Nat.

Mus.: 3), Las Mercedes, Pantaleon (Champion: ¢ ).

One specimen from each locality. Smaller and duller than 7. rudbicundus; the

impunctate space on the disc of the prothorax reduced to a narrow line at the base,

the subapical constriction almost wanting; the ventral depression of the male shallow

and not extending to the apex. ‘The relatively longer elytra, the smaller prothorax,

the longer and more slender legs, &c., separate 7. rufotestaceus from Caulophilus

sericatus.

3. Tytthomimus lineatocollis, sp. n.

Moderately elongate, narrow, somewhat depressed, obscure ferruginous, finely alutaceous, feebly shining.

Head closely, finely punctate on the vertex, foveate and slightly depressed between the eyes, the latter

large and separated by a little more than half the width of the rostrum; rostrum cylindrical, rather

slender, about as long as the posterior portion of the prothorax, sparsely, finely punctate, the antennze

inserted at the middle. Prothorax nearly as long as broad, somewhat oval, abruptly constricted in front ;

closely, finely punctate, except along the smooth median line, which extends from the base to the sub-

apical constriction. Scutellum small. Elytra moderately long, slightly wider than the prothorax,

subparallel to beyond the middle, obtusely produced and subexplanate at the apex; narrowly punctate-

striate, the interstices much broader than the strie, flat, transversely rugulose, and closely, conspicuously

uniseriate-punctate. Beneath closely, finely punctate; first ventral segment narrowly depressed down

the middle. Tibie each with a minute tooth at the inner apical angle, the anterior pair angularly

dilated at the middle within.

Length 27, breadth 3 millim. (<.)

Hab. Panama, Bugaba (Champion).

One specimen. More elongate and more depressed than the two other species

referred to this genus, the head punctate on the vertex, the rostrum longer and not so

stout, the prothorax with an almost complete impunctate median line, the elytral

interstices transversely rugulose and conspicuously uniseriate-punctate.

CARPHONOTUS,.—CA ULOPHILUS. 39

CARPHONOTUS.

Carphonotus, Casey, Ann. N. York Acad. Sci. vi. p. 694 (1892).

This genus is based upon a single N.-American species, C. testaceus, Casey, and one

from the Guatemalan Cordillera is now provisionally added. It is recognizable by its

ochreo-pilose body, narrow prothorax, short, subcylindrical rostrum, and transverse,

rather prominent eyes, which are placed immediately in front of the globose portion

of the head. It approaches Stenomimus, Woll.

1. Carphonotus ochreipilis, sp. n. (Tab. II. fig. 7.)

Elongate, narrow, somewhat fusiform, shining, ferruginous or obscure ferruginous, thickly clothed with rather

long, decumbent, ochreous hairs. Head feebly punctate behind the eyes, the latter moderately prominent

and separated above by a little less than their own width; rostrum short, stout, subcylindrical, closely

punctate; antennal club stout, acuminate, its basal joint shining. Prothorax as long as broad, sub-

conical, gradually narrowing to the subapical constriction, densely punctate. Elytra much wider than

the prothorax, moderately elongate, subparallel in their basal half, conjointly rounded at the apex, the

apical margin somewhat dilated laterally; coarsely, deeply punctate-striate, the outer strie entire,

the interstices narrow, feebly convex, transversely rugose, and closely uniseriate-punctate. Anterior

cox separated by a little less than their own width. Beneath closely, rather coarsely punctate ;

metasternum and first ventral segment depressed down the middle in the g¢. Femora clavate. Third

tarsal joint slightly widened.

Length 24-23, breadth 2-1 millim. (¢ 2.)

Hab. GuatTeMALa, Quiché Mts. and Totonicapam, 7000-10,500 feet (Champion).

Three specimens. Differs from the C. testaceus in its more approximate eyes, the

larger antennal club, the densely punctured, subconical prothorax, the deeply punctate-

striate elytra, the more widely separated anterior cox, the almost simple third tarsal

joint, and the closer vestiture.

CAULOPHILUS.

Caulophilus, Wollaston, Ins. Mader. p. 315 (1854) ; Trans. Ent. Soc. Lond. new ser, v. p. 368

(1861), and 1873, pp. 439, 499, 586; Leconte, Proc. Am. Phil. Soc. xv. pp. 337, 340 (1876).

The type of this genus was from Madeira, but the insect proved to be an introduced

American insect (as suspected by Leconte), which extends from the Southern States

into Mexico and Guatemala, whence three other species are now added. ‘The larger

forms bear a superficial resemblance to the Palearctic Rhyncolus lignarius, Marsh.

(cylindrirostris, Oliv.). Wollaston in his first description stated that. the wings were

obsolete, but this must have been an error of observation. The four species may be

tabulated thus :—

Elytra more than twice the length of the prothorax: species larger (length

over 3 mm.). :

Elytral interstices simply convex at the apex, closely punctate . . . . . dutinasus, Say.

Elytral interstices strongly costate at the apex, sparsely punctate . . . . costatus, sp. n.

A() RHYNCHOPHORA.

Elytra shorter, not more than twice the length of the prothorax : species

smaller (length not more than 24 mm.).

Body somewhat convex, nigro-piceous ; prothorax relatively narrower . . vere@crucis, sp. n.

Body somewhat depressed, ferruginous ; prothorax ample . . . . . . sericatus, sp. n.

1. Caulophilus latinasus. (Tab. IT. fig. 8.)

Rhyncholus latinasus, Say, Descr. N. Am. Cure. p. 30 (1831)'; Complete Writings, i. p. 299?

(nec Boheman). .

Caulophilus latinasus, Lec. Proc. Am. Phil. Soc. xv. p. 340 (1876)°; Champ. Ent. Monthly Mag.

xlv. p. 121 *.

Caulophilus sculpturatus, Woll. Ins. Mader. p. 815, t. 6. figg. 4-4 a—c (1854) °.

Cossonus pinguis, Horn, Proc. Am. Phil. Soe. xiii. p. 442 (1873) °.

Cossonus picipennis, Sturm, in lJitt.”.

_ Hab. Nort Americas, Georgia ®, Florida 124%, Southern States ?—Mexico (Sallé,

ex coll. Sturm® ; Mus. Brit.), Toxpam, Vera Cruz (Sal/é), Amula in Guerrero (H. H.

Snuth); GuavreMata, Duefias (Champion).—Mapeira °,

Mexican and Guatemalan specimens differ from the Madeiran type and from those

from 8. Carolina sent me by Mr. Barber in having the body nigro-piceous or black,

with the elytra sometimes piceous. In two of the Mexican males the entire upper

surface is black, opaque, and very closely punctate (except along the very narrow

smooth median line of the prothorax), and the antenne are very stout. The prothorax

is sometimes, but not always, distinctly narrower than the elytra. The first ventral

segment is depressed down the middle in the male. A specimen from Toxpam is

figured.

2. Caulophilus costatus, sp.n. (Tab. II. figg. 9, 9a.)

Subfusiform, moderately shining, nigro-piceous, the head, antenne, rostrum, elytra, and legs piceous or

rufo-piceous. Head and rostrum very sparsely, finely punctate, the rostrum cylindrical, stout, feebly

curved, about half the length of the prothorax, the eyes large, the head transversely depressed and

feebly foveate between them, the antennal club stout. Prothorax a little broader than long, somewhat

conical, gradually narrowing forwards to the subapical constriction ; closely punctate, the narrow

interspaces alutaceous, the disc with an incomplete median line. Elytra considerably wider than the

prothorax, subparallel in their basal half and rapidly narrowing thence to the apex; punctato-sulcate,

the interstices convex, costate at the apex (fig. 9a), somewhat rugulose, each with an irregular row of

scattered minute punctures. Legs stout.

Length 35, breadth 1,1), millim. (?.)

Hab. Mexico, Motzorongo in Vera Cruz (Flohr).

One specimen. Nearly related to C. latinasus, differing from it in the smoother

rostrum, the somewhat conical prothorax (due to the sides being less rounded), and

the convex, apically costate, smoother elytral interstices.

CAULOPHILUS.—MEGALOCORYNUS. A]

3. Caulophilus vereecrucis, sp. n.

Moderately elongate, rather convex, subfusiform, finely alutaceous, rather dull, nigro-piceous, the rostrum,

antenne, humeri, and legs rufo-piceous. Head flattened between the eyes, the exposed portion of the

vertex and the rostrum closely punctate, the latter very short, the eyes large. Prothorax slightly

broader than long, gradually and arcuately narrowing from near the base to the subapical constriction ;

very closely, finely punctate, except along the abbreviated smooth median line. . Elytra as wide as, but

barely twice the length of, the prothorax ; shallowly punctato-sulcate, the interstices a little wider than

the sulci, almost flat, closely uniseriate-punctate. Anterior coxe separated by about their own width.

Beneath shining, finely, closely punctate ; metasternum and first ventral segment depressed along the

middle. Legs short and stout.

Length 2-2}, breadth 7-4 millim. (¢.)

Hab. Mexico, Motzorongo in Vera Cruz (fohr).

Two specimens. Much smaller than C. latinasus, the elytra less elongate, the

prothorax less rounded at the sides, the rostrum shorter. From C. costatus the

present species may be known by the non-costate apical interstices of the elytra,

the smaller size, &c.

4. Caulophilus sericatus, sp.n. (Tab. II. fig. 10.)

Moderately elongate, somewhat depressed, sericeous, the elytra duller than the rest of the surface, ferruginous.

Head flattened and finely punctate between the eyes, the latter large; rostrum short, sparsely, finely

punctate. Prothorax broader than long, rounded-trapezoidal, constricted in front ; closely, finely punc-

tate, except along the narrow median line. Elytra scarcely so wide as, and barely twice the length of,

the prothorax, subparallel in their basal half; shallowly punctato-sulcate, the interstices almost flat, the

inner ones broader than the sulci, and closely uniseriate-punctate. Legs short and stout.

Length 13-2, breadth 3-3 millim.

Hab. Guaremaa, Pantaleon and Zapote, Pacific slope (Champion).

Two specimens. A small form, recognizable by its ample, rounded-trapezoidal

prothorax, the rather short elytra, the somewhat sericeous upper surface, and the

uniform ferruginous colour.

MEGALOCORYNUS.

Megalocorynus, Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 437, 473, 557, 616.

Cossonus, Stirps 2, Schénherr, Gen. Cure. iv. p. 1039.

The single species of this genus is peculiar to Mexico. It is very like some of the

Cossoni, but may be readily separated therefrom by the long antennal club and the

great dissimilarity in the form of the rostrum in the two sexes.

1. Megalocorynus depressus, (Tab. II. figg. 11, lla, g; 12, 9.)

Cossonus depressus, Boh. in Schénh. Gen. Cure. iv. p. 1089 (¢)'.

Megalocorynus depressus, Woll. Trans. Ent. Soc. Lond. 1873, p. 557 (3 ¢)*.

Cossonus conicirostris, Rosensch. in Schénh. Gen. Cure. iv. p. 1040 (2) ’°.

Megalocorynus capitatus, Woll. loc. cit. p. 616 (¢)*.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1909. GG

42 RHYNCHOPHORA.

Hab. Mexico 1~4 (Truqut), San Andres Tuxtla, Parada (Sallé), Jalapa, Oaxaca (Mus.

Brit.).

I have seen the types of the above forms and they certainly all belong to one

variable species: UM. capitatus has the sides of the prothorax less rounded than usual

and M. conicirostris is simply a female of M. depressus. Specimens occur with the

elytra and abdomen ferruginous. The males have the first and second ventral segments

very broadly flattened down the middle.

_COSSONUS.

Cossonus, Clairville, Ent. Helv. p. 58 (1798); Schénherr, Gen. Cure. iv. p. 994, and viii. 2,

p- 266 (part.); Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 438, 483, 568; Leconte, Proc,

Am. Phil. Soc. xv. pp. 337, 338 (1876).

Borophleus, Wollaston, loc. cit. pp. 438, 484, 569.

About 140 members of this widely-distributed genus have been described, including

a considerable number from Mexico. Schoénherr’s first section (Stirps 1, Cent. I.),

to which the European type, C. ferrugineus, Clairv., belongs, is not represented within

our limits, and his Stirps 2, based upon the Mexican C. depressus, Boh., has been

separated by Wollaston under the name Megalocorynus. The pine-bark species

(numerous in N. America, Mexico, and Guatemala) nearly all belong to Borophieus,

Woll., but they are connected with the typical Cossont by intermediate forms. The

tropical eastern representatives are extremely like some of those inhabiting Central

and South America and might easily be confounded with them. Many of these insects

vary greatly in size, and in some cases there is a considerable variation in the colour

of the elytra. They have the rostrum more or less distinctly dilated anteriorly in

both sexes, except in C. catolethroides, C. convextrostris, C. latus, and a few other

forms. C. spathula, Boh., and its allies would perhaps be better placed in a separate

genus. ‘The sexual characters are not very pronounced, but the first ventral segment

is often hollowed down the middle in the male. ‘The Central-American forms may be

grouped thus :—

a. Prothorax not abruptly excised near the apex.

a’. Rostrum (except in some specimens of C. latus and in C. puncticollis)

more or less distinctly widened or dilated anteriorly.

a’. Prothorax without definite basal excavation, feebly bisinuate at the base.

a’. Head with the (globose) basal and anterior (inter-ocular) portions

continuous above, closely punctured.

a’. Rostrum sulcate, strongly dilated anteriorly ; elytra very long and

eylindrical » 2 2. ew eee - + « «© « « . Species I.

b*. Rostrum not sulcate, strongly dilated anteriorly ; ; elytra moderately

_long.

’, Body almost glabrous. . . . . oe. ss) 6Species 2, 3.

0 Body clothed with very minute hair-like scales, conspicuous

beneath ; prothorax densely punctate and sharply carinate . . Species 4.

COSSONUS.

6°. Head with the (globose) basal portion much smoother than the

anterior (inter-ocular) portion, and usually separated from it by a

faint transverse groove. [= Boroputaus, Woll.]

c*. Rostrum short ; eyes more or less prominent.

ce’. Rostrum grooved between the points of insertion of the antenne

(sublinear in C. puncticollis, Boh.) . . . . . . . «© « « Species 5-7.

d’. Rostrum without groove.

c’. Rostrum very broadly dilated anteriorly . . . . . . . . Species 8.

d°. Rostrum moderately dilated anteriorly . . . . . . . . Species 9-14,

d‘. Rostrum nearly as long as the prothorax, the long anterior portion

very little wider than the basal portion; eyes not prominent . . Species 15.

6°. Prothorax with a definite basal excavation, sometimes extending forwards

to the apex or divided down the middle by a smooth carina, the base

more or less deeply bisinuate (more feebly so in a few of the smaller

forms}.

c’. Head with the (globose) basal and anterior (inter-ocular) portions

continuous above, closely punctate.

e*. Rostrum with a lanciform excavation extending upwards to the

frontal fovea, the apex strongly dilated; prothorax closely punc-

tate, carinate, the basal excavation deep . . . . . ,. . . ~ Species 16.

jf’. Rostrum with a short groove, the apex strongly dilated; prothoracic

depression long and shallow . . . . os . . . + Species 17.

gy’. Rostrum unimpressed, narrow at the base, broadly dilated at the

apex; prothoracic excavation long and deep; elytra depressed,

with the seriate punctures transverse and closely packed. . . . Species 18, 19.

h*. Rostrum unimpressed, feebly widened anteriorly, flattened in 9;

prothoracic excavation deep, triangular; elytra with the seriate

punctures very coarse and foveiform . . . . . « Species 20.

d°*. Head (except in C. marcidus) with the (globose) basal portion much

smoother than the anterior (inter-ocular) portion, and usually sepa-

rated from it by a faint transverse groove.

i. The disc of the prothorax without a large, well-defined, smoother

or polished space on each side or across the middle.

e’. The basal excavation of the prothorax large and deep.

e°. Rostrum deeply sulcate, short, strongly dilated anteriorly ;

prothorax and elytra coarsely punctate. . . . . . . . Species 21.

f°. Rostrum not sulcate*, strongly dilated anteriorly. . . . . Species 22-27.

gy’. Rostrum not sulcate, very little widened anteriorly (sublinear

in C. latus, 9). 6. 6. 1 ee ew ewe we we ee.) «Species 28-81.

f°. The basal excavation of the prothorax shallower; rostrum dilated

anteriorly.

h’. Eyes very prominent; elytra variable in colour . . . . . Species 32.

2°, Eyes not so prominent.

a’. Elytra black, sometimes in great part rufescent, not vittate. Species 33-39.

6". Elytra sharply vittate . . . 2... . . . . .) .) . Species 40.

* Except insome specimens of C. micraspis.

GG 2

RHYNCHOPHORA.

j*, The disc of the prothorax with a large, transverse, smoother space in

front of the deep basal excavation ; rostrum comparatively “~

quadrangularly widened anteriorly . . . . - Species 41.

k‘. The disc of the prothorax with a large, well- defined, finely punc-

tured or polished space on each side of the excavation.

g’. Prothorax with a deep basal excavation.

j°. Elytra black, sometimes in part rufescent or subvittate . . . Species 42-52.

: Elytra sharply vittate . . . . . . . ~ . + . . Species 53.

. Prothorax with a large shallow excavation limited on each side.

by two or three ohlique rows of coarse or moderately coarse

punctures ; rostrum very short, about as long as broad ; body

depressed . . . . . rr Species 54, 55.

b*. Rostrum linear in both sexes; head with the basal portion globose and

smooth; prothorax feebly depressed or excavate at the base.

c’. Scutellum large ; rostrum moderately long; prothorax finely punctured,

not carinate at the base . . . . 1 1 ee ee ee ee ee) «Species 56.

ad’. Scutellum small; rostrum shorter; prothorax coarsely punctured,

carinate at the base . 2. . . ee eee eee ee ee) Species 57.

b. Prothorax abruptly excised near the apex, the anterior portion separated from

the rest by a very deep transverse groove; eyes depressed ; rostrum broadly

and obliquely dilated from near the base, sulcate, gibbous ; scutellum very

small; elytra seriato-foveate . . - - 2 2 es . « «+ Species 58.

1. Cossonus cylindripennis, sp.n. (Tab. IL. figg. 138, 13a, ¢.)

Cossonus cylindripennis, Sturm, in litt.

Very elongate, shining, black, the base of the antenne and the tarsi more or less rufescent. Head somewhat

exserted, closely, rather coarsely punctate, shallowly foveate between the rather depressed eyes, and

without definite constriction behind them; rostrum short and stout, closely punctate and shallowly

sulcate, broadly, transversely, subquadrangularly widened at the apex; antenne stout, the scape

considerably dilated towards the tip, the club ovate. Prothorax about as long as broad, oval, narrowed

and constricted in front, flattened or slightly depressed on the disc posteriorly, feebly bisinuate at the

base; closely, somewhat coarsely punctate, with or without an incomplete smooth median line,

sometimes with a short longitudinal carina at the base. Scutellum small, smooth. Elytra not or

very little wider than the prothorax, elongate, cylindrical, parallel to near the apex; coarsely seriate-

punctate, the outer interstices narrow and distinctly raised, the inner ones flatter and as broad as the

stria, each with a row of scattered minute punctures. Beneath coarsely punctate; ventral segments

1 and 2 broadly and deeply excavate down the middle, and 5 with a large deep transverse fovea at the

apex, in the ¢.

Length 63-94, breadth 13-23 millim. (¢ 9.)

Hab. Mexico (Sallé, ex coll. Sturm: 3); Nicaragua, Chontales (Belt, Janson: @ ).

One male [type] and three females. A very elongate form, with long, cylindrical,

rather narrow elytra, an oval, almost unimpressed prothorax, stout antenne, and an

abruptly widened, shallowly sulcate rostrum; the ventral excavation of the male long

_and deep, and the apical fovea large.

COSSONUS., A‘

2. Cossonus puncticeps, sp. n. (Tab. II. figg. 14, 14a, 3.)

Elongate, shining, black, the antenne (the club excepted) and tarsi ferruginous. Head somewhat exserted,

deeply foveate between the very prominent eyes, and without definite constriction behind them, the

exposed basal portion and the interocular space closely punctate; rostrum short, strongly, transversely,

subquadrangularly dilated at the apex, closely, coarsely punctate. Prothorax somewhat convex, a little

broader than long, rounded at the sides, feebly bisinuate at the base, constricted and much narrowed in

front ; closely, coarsely punctate, except along the smooth, mesially dilated, cariniform median line,

without definite basal depression. Scutellum very small, transverse. LElytra slightly wider than the

prothorax, long, parallel to beyond the middle, flattened on the disc; punctato-sulcate, the interstices

narrow, raised, and faintly uniseriate-punctate. Ventral segments 1 and 2 narrowly sulcate down the

middle in the ¢.

Length 5-61, breadth 14-17 millim.

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Three examples from Omilteme; a fourth (immature) from Las Vigas (Hége)

probably belongs to the same species. More elongate and less rugose than the

Guatemalan C. rugosus, the exposed basal portion of the head not so coarsely punctate,

the prothorax relatively wider and with a conspicuous smooth, raised, median line,

the elytra very little broader than the prothorax, with faintly punctate interstices.

The rather convex, subcarinate, closely punctured prothorax and the longer and strongly

dilated rostrum separate C. puncticeps from C. xylophilus.

3. Cossonus rugosus, sp.n. (Tab. II. figg. 15, 15a, 3.)

Moderately elongate, shining, black, the elytra with the humeri and a very faint subapical patch (extending

forwards towards the shoulders) indeterminately rufescent, the base of the antenne and the tarsi more

or less ferruginous. Head exserted, slightly depressed down the middle between the prominent, rounded

eyes, and without definite constriction behind them, the exposed basal portion and the interocular space

densely, coarsely punctate; rostrum short, stout, strongly, transversely, subquadrangularly dilated at

the apex, coarsely, densely punctate; antenne stout. Prothorax somewhat convex, a little broader

than long, rounded at the sides, feebly bisinuate at the base, constricted and narrowed in front ; coarsely,

densely punctate, sharply carinate posteriorly, without definite basal depression. Scutellum small,

transverse. Elytra much wider than the prothorax, moderately long, subparallel, flattened on the dise,

the humeri subangular ; coarsely punctato-sulcate, the punctures subtransverse and closely packed, the

interstices narrow, raised, and strongly uniseriate-punctate. Beneath closely punctate; ventral segments

1 and 2 slightly depressed down the middle in the ¢.

Length 43-53, breadth 12-1}? millim.

Hab. GuateMata, Duefias, on the slope of the Volcan de Fuego (Champion).

Three specimens, varying a little in the sculpture of the prothorax and the colour

of the elytra. A moderately elongate, very rugose, rather convex form, with the

exposed basal portion of the head as coarsely punctured as the interocular space, the

eyes prominent, the rostrum abruptly dilated at the apex, the elytra much wider than

the prothorax, with strongly punctate, narrow, raised interstices, &c.

4, Cossonus subopacus, sp. n. (Tab. II. figg. 16, 16a, ¢.)

Elongate, somewhat depressed, subopaque above, more shining beneath, black, the antenne (the club

excepted) fusco-ferruginous, the tarsi ferruginous; sparsely clothed with minute, hair-like, brownish

46 RHYNCHOPHORA.

scales, which are conspicuous on the under surface. Head exserted, longitudinally foveate between the

rather prominent eyes, and without definite constriction behind them, the exposed basal portion and the

interocular space densely, finely punctate; rostrum short, rather convex, broadly, transversely, sub-

quadrangularly dilated at the apex, narrow at the base, densely punctate. Prothorax broader than long,

rounded at the sides, much narrowed and feebly constricted in front, and feebly bisinuate at the base ;

densely, finely, uniformly punctate, the disc with a smooth sharp median carina, the basal depression

almost obsolete. cutellum transverse, small, shining. Elytra moderately Jong, slightly wider than the

prothorax, parallel, flattened on the disc; coarsely punctate-striate, the punctures closely packed, the

interstices narrow, raised, densely, conspicuously punctate. Ventral segments 1 and 2 very broadly

excavate down the middle.

Length 5,-67, breadth 13-2 millim. (¢.)

Hab. Mexico, Juquila in Oaxaca (Sad/é).

Three males. This is the only Central-American Cossonus with a distinct very fine

surface-vestiture. The head is exserted and densely punctate; the rostrum is greatly

dilated at the tip and rather narrow at the base; the prothorax is sharply carinate

and densely punctate ; the scutellum is smooth and shining; the elytra have coarsely

punctured strie and densely punctate narrow interstices; and the ventral excavation

of the male is unusually broad and deep.

5. Cossonus depressicollis. (Tab. II. fig. 17.)

Cossonus depressicollis, Boh. in Schonh. Gen. Cure. iv. p. 1004".

Hab. Mexico, Orizaba (Mus. Chevrolat').

We do not appear to have received an example of C. depressicollis, the type of

which is here figured. It approaches C. xylophilus, but has the head smaller, the

rostrum canaliculate between the points of insertion of the antenne and relatively

narrower, and the prothorax more coarsely, unequally, and rather sparsely punctured,

and the short, shallow, rugose depressions at its base a little more marked. The

elytra are relatively longer and the prothorax more coarsely punctured than in

C. purulensis. The very coarse punctures on the disc of the prothorax in C. depressi-

collis are arranged in two strongly sinuate lines down the middle, much as in C. rylophilus.

The rostrum is narrower at the base, and the prothorax more coarsely and more

sparsely punctured, than in C. subcarinatus.

6. Cossonus puncticollis.

Cossonus puncticollis, Boh. in Schénh. Gen. Cure. iv. p. 10031! (nec Wollaston).

Hab. Mexico}.

I am unable to identify this species amongst our Mexican material. The supposed

type, sent me for examination by Dr. Sjéstedt, is labelled “ Calif.,” and it does not

accord with the description. C. puncticollis is said to be “ subdepressed, with the

frons foveate; the rostrum as long as the head, sublinear (or scarcely narrowed at

the base), flattened towards the apex, and very narrowly grooved between the points

COSSONUS. 47

of insertion of the antenne; the prothorax oblong, with almost straight sides, flattened

above, thickly punctate, the disc obsoletely carinate and feebly bi-impressed at the

base ; the elytra closely punctate-striate, with narrow, smooth, convex interstices.”

7. Cossonus multiforus.

Cossonus multiforus, Say, Descr. Curc. N. Am. p. 30 (1831) ; Complete 7 Writings, i. p. 298°;

Boh. in Schénh. Gen. Cure. iv. p. 1000°*.

Hab. Mexico ! 23,

Say’s type of this insect is lost, and the species is not represented in the Stockholm

Museum. It is described by Boheman? as “rather convex, with the rostrum and

frons shortly canaliculate; the rostrum short and strongly quadrangularly dilated at

the apex ; the prothorax oblong, obsoletely carinate, closely, profoundly punctate, and

faintly bi-impressed at the base; the elytra deeply punctate-striate, with convex

interstices.” ‘The rostrum appears to be more dilated at the apex than in C. xylophilus

and most of the other species placed by Boheman in his Cent. II. sect. A.

8. Cossonus latirostris, sp. n. (Tab. IT. fig. 18, ¢ *.)

Elongate, rather broad, flattened above, shining, black, the base of the antenne and the tips of the tarsi

ferruginous. Head narrowly, longitudinally foveate and coarsely punctate between the eyes, without

definite constriction behind them, the exposed basal portion sparsely punctured, the eyes large and

moderately prominent; rostrum very short and broad, strongly, transversely, trapezoidally dilated

at the apex, the two portions about equal in length, closely, coarsely punctate, and usually with

indications of two short carine between the points of insertion of the antenne. Prothorax oblong,

nearly as long as broad, subquadrate, narrowed and constricted in front, and also considerably narrowed

at the base, the latter feebly bisinuate ; coarsely, closely punctate, except along the smooth, somewhat

raised median line, the punctures becoming larger, more scattered, and irregularly distributed on the disc,

and smaller and more crowded at the sides, the basal depression wanting. Scutellum transverse, small.

Elytra moderately long, not or very little wider than the prothorax, subparallel, transversely depressed

below the base; coarsely crenate-striate, the punctures rounded and closely packed, the interstices

almost smooth, the outer ones raised and very narrow, those towards the suture flatter and broader.

Beneath coarsely, rather sparsely punctate; ventral segments 1 and 2 slightly depressed down the

middle in the ¢.

Length 5-6, breadth 14-1, millim. (¢ 9.)

Hab. GUATEMALA, San Joaquin and San Gerdnimo in Vera Paz (Champion).

Sixteen specimens, taken from beneath pine-bark. Larger and broader than

C. crenatus, Horn f, and C. corticola, Say (= minor, Woll.), and easily recognizable by

the very short, broad, trapezoidally dilated rostrum, with prominent oblique pterygia,

the rather less elongate prothorax (which in some examples is considerably rounded

at the sides), and the larger eyes.

* The figure 18 a, quoted at the bottom of the Plate, was accidentally omitted by our artist.

+ Most of the specimens doing duty for this species in British collections appear to belong to C. piniphilus,

Boh. (= Borophleus murray, Woll., in litt.).

4§ RHYNCHOPHORA.

9. Cossonus hepburni, sp. n. (Tab. II. fig. 19, head and rostrum, ¢.)

Moderately elongate, somewhat flattened above, shining, black, the base of the antenne and the tips of the

tarsi ferruginous. Head longitudinally foveate and closely punctate between the eyes, the exposed basal

portion sparsely punctate, the eyes prominent; rostrum short, transversely, quadrangularly dilated at

the apex, the two portions subequal in length, closely, coarsely punctate, and with a small, smooth,

tuberculiform prominence between the points of insertion of the stout antenne. Prothorax a little

broader than long, moderately rounded at the sides, slightly constricted in front, feebly bisinuate at the

base ; closely, coarsely punctate, except along the smooth median line, the latter subcariniform at the

base and bordered on each side with a scattered irregular row of larger punctures, the disc flattened

posteriorly and more sparsely punctured in the middle than at the sides. Scutellum very small.

Elytra moderately long, very little wider than the prothorax, subparallel ; coarsely crenate-striate, the

strize becoming broader and deeper and the punctures closely packed towards the base, the interstices

narrow, raised, and faintly uniseriate-punctate. Ventral segments 1 and 2 deeply excavate down the

middle.

Length 43, breadth 12 millim. (¢.)

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).

One male. Near C. crenatus, Horn, but relatively broader and with a less elongate

prothorax, and the first two ventral segments of the male deeply excavate down the

middle. A specimen from Capetillo, Guatemala, may be the female of the same

species (or the male of an allied form): it differs from the type in having the globose

portion of the head almost smooth, the smooth median line on the prothorax broader,

and the ventral excavation faintly indicated. The rostrum is much less dilated

anteriorly than in C. latirostris.

10. Cossonus corticola. (Tab. II. figg. 20, 20a.)

Cossonus corticola, Say, Descr. N. Am. Cure. p. 24 (July 1831)’; Complete Writings, i. p. 291’;

Boh. in Schonh. Gen. Cure. iv. p. 1005°; Horn, Proc. Am. Phil. Soc. xiii. pp. 487, 439‘ ;

Leconte, Proc. Am. Phil. Soc. xv. p. 338°. |

Borophleus minor, Woll. Trans. Ent. Soc. Lond. 1873, p. 627°.

Hab. Norta America?®, Missouri and Pennsylvania!?, Gulf States 4+—Mzrxico

(Trugqui, Hoge); GuareMaLa, Balheu and San Joaquin in Alta Vera Paz (Champion).

The Mexican and Guatemalan examples (five in all) provisionally referred to this

species are somewhat intermediate between the insects sent me as C. corticola, Say,

and C. crenatus, Horn, by Mr. Barber, of the U.S. Nat. Museum, and a Cossonus from

Florida given me by Mr. Wickham as C. impressiformis, Boh., seems to belong to the

same form. ‘These specimens are narrow, elongate, and rather convex, and have a

very short, broad, almost undilated rostrum ; a deeply foveate frons; large, prominent

eyes; an oblong, parallel-sided, coarsely punctured prothorax, with the smooth median

line more or less cariniform at the base; and rather narrow, moderately long, closely

crenate-striate elytra. They vary from 34-44 mm. in length. B. minor (the three

types of which I have seen), as suggested by Leconte ’®, is inseparable from the present

species: Wollaston does not appear to have observed that this insect has a relatively

COSSONUS. 49

more elongate prothorax than his B. puncticollis (= aylophilus, Boh.). Both live

under the bark of pines. One of Wollaston’s types of B. minor is figured.

11. Cossonus xylophilus, (Tab. Il. figg. 21, 21 a.)

Cossonus xylophilus, Boh. in Schénh. Gen. Cure. iv. p. 9997.

Borophleus puncticolis, Woll. Trans. Ent. Soc. Lond. 18738, p. 627°.

Cossonus puncticollis, Sturm, in litt. (nec Boh.).

Hab. Muxico!? (Sallé, ex coll. Sturm; Truqui, Mus. Brit.), Ciudad in Durango,

Las Vigas, Amecameca, Jalapa, Oaxaca (//dge), San Andres Chalchicomula, Orizaba

(Sallé}, ‘Tenango del Valle (Richardson), Cuernavaca (Flohr), Michoacan (Herrera, in

US. Nat. Mus.), Uruapan (Deam, in U.S. Nat. Mus.); Guaremata, Quiché Mts.

(Champion).

Sent in numbers from Las Vigas. An elongate, somewhat depressed form, with

prominent eyes, a subquadrate, faintly impressed prothorax, and long, parallel, closely

crenate-striate elytra, the prothorax moderately bisinuate at the base and in some

specimens (as in the type of C. axylophilus) considerably narrower than the elytra.

The first ventral segment of the male is broadly flattened down the middle. The

Tenango examples are marked as having been found under pine-bark. Boheman’s

type is figured.

12. Cossonus guatemaltecus, sp. n.

Moderately elongate, flattened above, shining, black or piceous, the base of the antenne and the tarsi

ferruginous, Head longitudinally foveate and closely punctate between the eyes, the globose basal

portion almost smooth, the eyes prominent; rostrum very short, transversely, quadrangularly dilated at

the apex (in one of the Zapote specimens faintly canaliculate between the points of insertions of the

antennee), the two portions about equal in length, closely, finely punctate. Prothorax slightly broader

than long, very gradually or arcuately narrowing from a little before the base to the transverse subapical

constriction, the base feebly bisinuate ; somewhat finely and not very closely punctate, except along the

smooth median line, the latter subcariniform at the base and sometimes bordered with a few coarser

punctures, the disc flattened, but without definite basal excavation. Scutellum small. Elytra moderately

long, subparallel, very little wider than the prothorax ; somewhat finely punctate-striate, the interstices

almost flat. Beneath sparsely, finely punctate ; ventral segments 1 and 2 rather broadly excavate down

the middle in the ¢.

Length 23-33, breadth 7-1/1, millim. (¢ Q.)

Hab. Guatemata, Zapote and San Gerénimo (Champion).

Five examples. Smaller and less elongate than C. rylophilus, the puncturing of the

prothorax and elytra not so coarse, the dorsal interstices of the latter flat, the rostrum

a little narrower at the base, the ventral excavation of the male long and deep. The

non-excavate base of the prothorax, &c., separate the present species from C. exaratus,

C. impressus, and various other small forms. More depressed than C. depressicoilis, the

disc of the prothorax somewhat finely, subequally punctate.

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 7, December 1909. HH

50 RHYNCHOPHORA.

13. Cossonus subcarinatus, sp. n.

Moderately elongate, flattened above, shining, black or nigro-piceous, the tarsi and the base of the antenne

ferruginous. Head foveate and closely punctate between the eyes, the exposed basal portion faintly

punctured, the eyes prominent ; rostrum short, feebly, transversely, quadrangularly dilated at the apex,

the two portions about equal in length, closely punctate. Prothorax a little broader than long, moderately

rounded at the sides (or subobliquely narrowing forwards) to the distinct transverse subapical con-

striction, feebly bisinuate at the base ; closely, rather coarsely punctate, the disc triangularly flattened

posteriorly, and with an irregular row of coarser punctures along each side of the smooth, narrow,

incomplete median line. Scutellum very small. Elytra moderately long, subparallel, flattened

anteriorly; closely crenate-striate, the interstices obsoletely uniseriate-punctate, narrow, and feebly

convex. Beneath rather closely punctate; ventral segments 1 and 2 depressed down the middle in

the ¢d.

Length 33-44, breadth 1,,—14 millim.

Hab. Mexico (Solari, ex Hoge).

Five specimens. ‘This is a form of C. guatemaltecus with the prothorax and elytra

more strongly, and the under surface more closely, punctate, and the rostrum a little

less dilated at the tip. It is less elongate and more depressed, and has a narrower

rostrum, than C. zylophilus. The less elongate prothorax, more depressed form, and |

narrower rostrum also separate C. subcarinatus from C. crenatus and C. corticola.

The specimens are labelled as from “ Sierra de Durango,” but no reliance can be placed

on that locality.

14. Cossonus carinifer, sp. n.

Elongate, somewhat convex, shining, black, the base of the antennz and the tarsi ferruginous. Head rather

small, deeply foveate and closely punctate between the eyes, the globose basal portion almost smooth,

the eyes feebly convex; rostrum short, quadrangularly dilated at the apex, the basal portion slightly

longer than the apical, finely punctate. Prothorax oblong, somewhat obliquely narrowed from near the

base to the faint subapical constriction, the base feebly bisinuate ; coarsely, closely, unequally punctate,

the disc slightly depressed and subcarinate down the middle, the carina becoming sharply defined

posteriorly and the depression widening out into a shallow, triangular, punctured area. Scutellum very

small. Elytra not or very little wider than the prothorax, parallel, flattened on the disc anteriorly ;

closely crenate-striate, the strie becoming broader and deeper and the punctures larger towards the

base, the interstices faintly uniseriate-punctate, narrow, and more or less convex. Ventral segments

1 and 2 narrowly depressed down the middle in the ¢.

Length 32-5, breadth 1,,-14 millim.

Hab. Brrrish Honpuras, Rio Sarstoon (Blancaneauz).

Five specimens; a sixth from the same locality seems to belong to the same species,

but it has the prothorax more convex and unimpressed and the eyes somewhat

depressed. This insect is related to C. aylophilus, C. crenatus, and other pine-bark

forms, differing ‘from most of the allied CentraJ-American species in its distinctly

longer rostrum, the basal portion of which is considerably narrower than in

C. xylophilus. The short longitudinal carina at the base of the prothorax is sharply

defined, as in the N.-Ameriean C. impressifrons, Boh., a species unknown to me, but

apparently different from C. carinifer.

COSSONUS. 51

15. Cossonus silbermanni. (Tab. II. fig. 22, 22a, ¢.)

Phleophagus silbermanni, Boh. in Schonh. Gen. Cure. iv. p. 1048°.

Hab. Mexico! (Hoge, in coll. Solari), Chilpancingo in Guerrero (H. H. Smith),

Parada in Oaxaca (Sailé).

I have not seen the type of this species, which cannot now be found in the

Stockholm Museum, but the four specimens before me, including one (?) thus

labelled in the Sallé collection, agree very nearly with the description. This insect

has a comparatively elongate, subcylindrical rostrum, with the slightly widened apical

portion longer than in the other Mexican Cossont. The anterior portion of the head

(with the depressed eyes) is small, and much narrower than the smooth, globose

basal portion. ‘The prothorax is subparallel at the sides posteriorly, and very coarsely

punctate, especially towards the base, which is almost unimpressed and has a short

median carina. The elytra are long, much wider than the prothorax, rather convex,

very coarsely crenate-striate, with narrow raised interstices. The male has a slightly

shorter rostrum than the female, and the first two ventral segments feebly depressed

down the middle. C. stlbermanni is not unlike the N.-American C. piniphilus, Boh.,

but it has the rostrum nearly as long as the prothorax, &c. The Oaxaca specimen

is figured.

16. Cossonus cavirostris, sp. n. (Tab. II. figg. 23, 234, 3.)

Elongate, rather broad, depressed, moderately shining, finely alutaceous above, ferruginous or fusco-ferruginous.

Head somewhat exserted, densely punctate, foveate between the large and feebly convex eyes, and

without trace of constriction behind them; rostrum very short and broad, abruptly dilated anteriorly,

densely punctate, transversely grooved along the apical margin, and with a deep, elongate, almost

smooth, lanciform, median sulcus extending upwards to the frontal fovea; antennal club ovate,

moderately large. Prothorax transverse, strongly rounded at the sides, constricted and much narrowed

in front, deeply bisinuate at the base, broadly depressed in the middle behind; closely, unequally

punctate, the punctures coarse and crowded along either side of the smooth, sharply-defined, mesially-

widened, median carina, and more diffuse and finer on each side of the rugose basal depression.

Scutellum comparatively large, subquadrate. Elytra elongate, a little wider than the prothorax, parallel,.

flattened or transversely depressed below the base, the humeri subangular; coarsely seriate-punctate,

the punctures strongly transverse along the basal portion of the sutural stria, the interstices rather

narrow, somewhat convex (especially at the base, sides, and apex), and with scattered minute punctures.

Beneath very sparsely punctate ; ventral segments 1 and 2 broadly depressed down the middle in

the ¢. Tibie flattened, broad, and sinuate, the anterior pair with a triangular tooth on the lower

edge towards the tip in the ¢.

Length 64-94, breadth 21-3 millim. (¢ 2.)

Hab. Costa Rica, San Carlos (U.S. Nat. Mus.); Panama (Mus. Brit., coll. Fry).

Six specimens, scarcely differing in colour. A large, broad, depressed form, not

unlike Megalocorynus depressus, with a very short, broad, densely-punctured, apically-

dilated rostrum in both sexes; the rostrum with an almost smooth, lanciform

excavation in the middle above; the head exserted; the prothorax transverse, strongly

HH 2

52 RHYNCHOPHORA.

rounded at the sides, carinate, and unequally punctate; the scutellum rather large ;

the elytral interstices convex and subsinuate at the base.

17. Cossonus bisulcatus, sp.n. (Tab. IT fieg. 24, 24a, 3.)

Very elongate, depressed, rather broad, rufo-piceous (?immature), moderately shining. Head somewhat

exserted, rather small, longitudinally foveate between the eyes, and feebly constricted on each side

behind them, the interocular space and vertex closely punctate, the eyes large and somewhat depressed ;

rostrum very short, abruptly, transversely, trapezoidally dilated at the apex, sharply sulcate between the

points of insertion of the antennee, closely punctate, the pterygia rounded; antenne stout, with a large,

ovate club. Prothorax transverse, rounded at the sides, narrowed and constricted in front, moderately

bisinuate at the base; closely, coarsely, irregularly punctate, the disc flattened and with a broad, shallow,

elongate-triangular depression extending forwards to the transverse subapical constriction, the flattened

space more finely punctate externally and with about three irregular rows of larger impressions on each

side of the smooth raised median line. Scutellum rounded. Elytra scarcely wider than the prothorax,

elongate, subparallel ; coarsely crenate-striate, the punctures rounded and closely placed, the interstices

obsoletely uniseriate-punctate, narrow, the outer ones raised. Beneath coarsely, rather sparsely

punctate; ventral segments 1 and 2 broadly depressed down the middle, 5 ochreo-pilose along the

apical margin.

Length 72, breadth 2 millim. (¢.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One male, probably not quite mature. An elongate, depressed form, with the

rostrum very short, narrowly and sharply sulcate between the points of insertion of

the antenne, and abruptly trapezoidally dilated at the tip; the head foveate between

the eyes and closely punctured on the vertex; the prothorax rather short, longitudinally,

depressed and very coarsely punctate down the middle; the elytra elongate and

coarsely crenate-striate. Narrower than C. cavirostris, the head smaller, the rostrum

differently shaped, the prothoracic depression shallower at the base, &c.

18. Cossonus planus, sp. n. (Tab. II. figg. 25, 25 a.)

Elongate, broad, depressed, moderately shining, black, the extreme base of the antennee, and sometimes the

tarsi also, ferruginous. Head somewhat exserted, foveate between the eyes, the interocular space and

the exposed basal portion densely punctate, the eyes prominent; rostrum short, broadly, transversely

dilated at the apex, the basal portion rather narrow and longer than the apical, densely punctate.

Prothorax transverse, rounded at the sides, constricted and much narrowed in front, deeply bisinuate at

the base ; closely punctate, the disc with an elongate-triangular, carinate, more coarsely punctured area

extending from the base to the subapical constriction. Scutellum rather large, subquadrate, flat.

Elytra moderately long, much wider than the prothorax, subparallel, flattened on the disc; with rows of

closely packed, moderately coarse, transverse punctures, separated by narrow, feebly uniseriate-punctate,

raised interstices, the latter becoming wider and flatter towards the suture. Beneath closely punctate ;

ventral segments 1 and 2 hollowed down the middle in the ¢, broadly flattened in the 9. Anterior

cox separated by about their own width.

Length 5-7, breadth 13-22 millim. (¢ @.)

Hab. * Muxtco (Mus. Brit., ex coll. Janson).—Brazit, Rio Janeiro (coll. Fry).

Not uncommon in Brazil and doing duty for C. deplanatus, Boh., in various

collections, but not agreeing with the description of that species. The single specimen

COSSONUS. 53

from ‘“ Mexico,” obtained from the Janson collection, may be wrongly labelled as to

locality. This insect superficially resembles Megalocorynus depressus, Boh. It is

nearly related to C. semirufus, which has a very extended distribution, differing from

the black form of that species in the much less rugose, carinate depression on the

prothorax and the strongly transverse punctures of the elytral strie.

19. Cossonus semirufus. (Tab. II. figg. 26, 26a.)

Cossonus semirufus, Boh. in Schéuh. Gen. Cure. iv. p. 1009’.

Var. The elytra wholly black; the disc of the prothorax with a narrow space exterior to the long, rugose,

median depression densely, moderately coarsely punctate ; the elytral interstices very narrow, closely

punctured, the seriate punctures large, transverse, and closely packed.

Hab. Mexico, Orizaba! (Mus. [olm.); Guatemata, Senahu in Vera Paz, Cerro

Zunil, Zapote (Champion); Payama, Bugaba, Volcan de Chiriqui (Champion).—

Cotompia, Santa Marta (Mus. Brit.) ; Ecuapor, Macas (Buckley); Braziu, Para.

Not uncommon in Chiriqui. The type of this insect (2) has rather more than the

basal half of the elytra rufescent, but this colour sometimes extends over the whole of

their surface, or may be entirely wanting, as in the two examples from Zapote and one

from Paré. The head is somewhat exserted and the exposed portion is densely

punctate. The rostrum is short, rather narrow at the base, abruptly dilated at the

tip, and so densely punctured as to appear opaque. The prothorax has the coarsely

rugose depressed area extending forwards to the short tubulate apical portion, and

the base very deeply bisinuate. The elytra are rather broad and flattened, the seriate

punctures being usually crowded and strongly transverse, but they are more rounded

and less closely placed in the type and in some of the other specimens before me.

‘he anterior tibiz are sinuate within. ‘he ventral segments 1 and 2 are depressed

down the middle in the male. ‘The single example seen from Santa Marta has less

than the basal half of the elytra, and the greater part of the ventral surface, rufo-

testaceous; the wholly black one from Pardé represents C. fossatus, Boh.*, in the

British Museum. ‘he sculpture of the prothorax, like that of the elytra, is variable,

but the long, depressed, rugose area on the disc of the former is always very

conspicuous.

20. Cossonus planirostris, sp.n. (Tab. Il. figg. 27, 274, 2.)

Elongate, somewhat convex, shining, black, the basal half of the antenne and the tarsi more or less

ferruginous. Head somewhat exserted. rather small, foveate between the eyes, the interocular space

and the exposed large basal portion closely punctate, the eyes somewhat prominent ; rostrum ( @ ) almost

straight, short, flattened, gradually widened outwards, closely punctate, and with the subquadrate apical

portion as long as broad, (¢ ) somewhat convex and with the apical portion transverse; antennal club

stout, ovate. Prothorax slightly broader than long, moderately rounded at the sides, feebly constricted

and much narrowed in front, deeply bisinuate at the base; coarsely, closely punctate, the punctuation

* Boheman’s C. fossatus is said to have the elytra “ supra parum convexa.”

5d RHYNCHOPHORA.

irregular and a little more diffuse around the large, deep, rugose, subtriangular basal depression, the

latter sometimes with a short longitudinal carina at the base. Scutellum very small, narrow. Elytra

slightly wider than the prothorax, subparallel, flattened below the base; very coarsely and closely

seriate-punctate, the punctures at the base of the suture strongly transverse, the interstices narrow,

convex, faintly punctate. Beneath somewhat closely punctate, the ventral segments 1 and 2 very

slightly depressed down the middle posteriorly. Anterior tibiee almost straight on their inner edge.

Length 6-74, breadth 2-23 millim. (¢ @.)

Hab. Nicaraaua, Chontales (Belt, Janson).

One male* and three females. Recognizable by the short, almost straight,

flattened (¢) er feebly convex (¢ ), gradually widened rostrum, and the deep, rugose,

subtriangular basal fovea of the prothorax, the disc of the latter coarsely, closely,

irregularly punctate. The rostrum is flatter, more closely punctate, and more narrowed

towards the base than in C. Jatus. The present species is the only Central-American

species of the genus at present known with the rostrum differing markedly in form

in the two sexes, that of the female being much flattened.

21. Cossonus corticalis. (Tab. II. figg. 28, 28a, 3.)

Cossonus corticalis, Fabr. Syst. Eleuth. ii. p. 4971; Rosensch. in Schinh. Gen. Cure. iv. p. 1012°;

Oliv. Ent. v. no. 88, p. 426, t. 35. fig. 536°.

Cossonus bulbirostris, Perty, Del. Anim. Art. Bras. p. 83, t. 16. fig. 14°.

Cossonus reticulatus, Sturm, Cat. p. 125 (1826) ’.

Cossonus sulcirostris, Boh. in Schénh. Gen. Cure. iv. p. 1011°; Faust, Stett. ent. Zeit. 1896,

p- 1837 [nec C. sulcirostris, Fall, Canad. Ent. xli. p. 169 (May, 1909) *].

Cossonus sulcifrons, Dupont, in Mus. Brit. °.

Hab. Mexico ® ®, Durango, Guerrero, Vera Cruz, Oaxaca, Chiapas, &c.; Bririsn Hon-

pURAS; GUATEMALA ; Honpuras, Ruatan I.; Nicaragua; Costa Rica; PanaMa.—SovutTa

America !, Colombia 2, Venezuela’, Ecuador, Cayenne ®, Brazil? 4°, Peru, Trinidad, &c.

An abundant insect throughout Tropical America, ranging from Durango to Brazil.

It is easily recugnizable by the short, abruptly, apically dilated, sulcate rostrum in both

sexes; the very coarsely, unequally punctate prothorax (a longitudinal irregular space

along either side of the disc being always here and there impunctate or sparsely and

much more finely punctured), with a triangular, rugose, carinate basal fovea, preceded

by an irregular double row of coarse punctures ; the coarsely crenate-striate elytra, &c.

The first two ventral segments are slightly depressed down the middle in the male.

I have seen about 150 examples from the above-quoted Central and S.-American

localities, and there can be no reason to suppose that C. sulcirostris is specifically

distinct from C. corticalis. The rostral groove is sometimes shallow or interrupted

in the middle. The length varies from 4-84 mm. C. sulcirostris, Fall, from San

José del Cabo, Lower California §, is stated to have the rostrum feebly dilated apically,

* Since lost, while under examination. The specimen figured isa 9, nota ¢ as stated at the bottom of

the Plate.

COSSONUS. 55

the prothorax longer than broad, the elytra] interstices almost flat, and the legs

rufous: it must be yet another species and the name failli is. here suggested for it.

The type (2) of C. suwlctrostris, Boh., has been communicated by Dr. Sjéstedt.

22, Cossonus convexicollis. (Tab. II. figg. 29, 29a.)

Cossonus convexicollis, Boh. in Schénh. Gen. Cure. iv. p. 1017°.

Hab. Mexico (Hége, in coll. Solari), Orizaba! (Mus. Holm.), Toxpam, Juquila

(Sallé) ; GuatemMata, Zapote (Champion).

Found in some numbers at Toxpam and Zapote. This species is relatively narrower

than C. corticalis (suicirostris), thus appearing more elongate. The rostrum is less

dilated at the apex, not sulcate, and finely punctate. The eyes are depressed. ‘The

head is rather small, deeply foveate, and coarsely punctured between the eyes, the

globose basal portion almost smooth. The prothorax is as long as broad, very coarsely,

unequally punctate, the large, deep, rounded punctures along the middle of the disc

being arranged in an irregular row on each side of the smooth cariniform median line ;

the disc often has an indeterminate polished, narrow, longitudinal space of variable

extent on each side of the shallow median depression, the latter being widened out

into a subtriangular deeper area at the base. ‘The first ventral segment is depressed

down the middle in the male. The length varies from 43-6 mm.

23. Cossonus scrobiculatostriatus. (Tab. II. figg. 30, 30 a.)

Cossonus scrobiculatostriatus, Boh. in Schénh. Gen. Cure. viii. 1, p. 269°.

Hab. Mexico (Mus. Brit.), Toxpam (Sallé), Las Vigas, Oaxaca (Hége), Atoyac in

Vera Cruz (H. H. Smith); Guatemana, Calderas on the Voican de Fuego (Champion);

Nicaracua, Chontales (Janson); Costa Rica, Li Palma (Biolley).— Braziu *; ‘TRINIDAD ;

ANTILLES, St. Vincent ! (H. H. Smith).

Numerous specimens from the above-quoted localities, including a short series from

La Palma, agree perfectly with others found by Mr. H. H. Smith at St. Vincent, which

are evidently referable to Boheman’s species. They are very like C. corticalis, F.

(sudcirostris, Boh.) ; but the rostrum is not sulcate, the prothorax has a very deep

triangular excavation at the base (usually without, but sometimes with, a short median

carina), and the elytra are striato-foveolate (the foveitorm impressions rounded or oval,

and not very closely placed), the interstices becoming narrower, sinuous, and subcostate

anteriorly. The ventral depression of the male is shallow. C. gui/dingi, Boh., from

St. Vincent, to judge from the material. before me, is scarcely more than a small,

narrow, less concave form of the subsequently-described C. scrobiculatostriatus. A

Costa Rican specimen is figured.

56 RHYNCHOPHORA.

24. Cossonus perfidiosus. (Tab. II. figg. 31, 31 a.)

Cossonus perfidiosus, Boh. in Schénh. Gen. Cure. iv. p. 1016'; Faust, Stett. ent. Zeit. 1896,

p. 133°.

Cossonus curvatus, Chevr. in Mus. Brit.’.

Hab. Mexico® (Hége, in coll. Solari), Toxpam (Sallé); British Honpuras (Blane-

aneauxz) ; Nicaragua (Mus. Brit., Sallé), Chontales (Janson) ; Costa Rica, Valle de Baru

(Pittier), Machuca and Surubres, Pacific slope (Biolley); Panama, Volcan de Chiriqui

(Champion).—VENEZUELA, Caracas, La Guayra1, San Esteban ”.

The thirty-five specimens from our region here referred to C. perfidiosus (including

about a dozen from Machuca), the Venezuelan type of which I have not seen, are

extremely like the smaller examples of C. scrobiculatostriatus, differing from them in

having a slightly shorter, more rugose, obsoletely carinate rostrum, and the seriate

punctures on the elytra not so large (except at the base, where they are often sub-

quadrate) and more crowded, the interstices becoming very narrow, sinuous, and sharply

costate anteriorly. ‘The absence of definite polished spaces on the disc of the prothorax

and the shorter and more rugose rostrum separate C. perfidiosus from C. foveatus and

C. lebasti; and the comparatively broader, more convex form, the subcarinate rostrum,

and the smaller and more closely placed punctures on the elytra distinguish it from

C. guildingt. A large female from Toxpam (length 7 mm.) with somewhat depressed,

castaneous elytra, and two distinct almost impunctate spaces on the disc of the

prothorax, may belong here. ‘The other examples vary from 32-5+ mm. in length.

A Machuca specimen is figured, but it is not so broad as represented by our artist.

25. Cossonus euryaspis, sp.n. (Tab. II. figg. 32, 32 a.)

Elongate, somewhat convex, shining, black or piceous (immature), the tarsi partly or entirely ferruginous.

Head deeply foveate and coarsely punctured between the eyes, the globose basal portion almost, smooth,

the eyes not prominent; rostrum short, broadly, transversely, subquadrangularly dilated at the apex,

narrowed towards the base, closely, rather coarsely punctate. Prothorax a little broader than long,

deeply bisinuate at the base, narrowed and constricted in front, the sides moderately or strongly rounded ;

coarsely, closely, unequally punctate, the punctuation becoming more diffuse on the disc, the latter with

a large, deep, rugose, shortly-carinate, triangular excavation at the base which is continued shallowly

forwards to near the apex. Scutellum strongly transverse,smooth. Elytra elongate, usually wider than

the prothorax, subparallel; coarsely and closely crenate-striate, the interstices narrow, more or less

convex (especially towards the base), almost straight, obsoletely uniseriate-punctate. Beneath rather

sparsely punctate ; ventral segments 1 and 2 somewhat deeply (¢) or shallowly ( ¢ ) excavate down the

middle. Anterior coxe separated by less than their own width.

Length 53-9, breadth 14-3 millim. (¢ 9.)

Hab. Costa Rica (Rogers), La Palma, Tarbaca, Tablazo, Volcan de Barba, 1500-

1700 metres (Biolley), Irazu (U.S. Nat. Mus.).

Sixteen specimens, varying greatly in the development of the prothorax (as is the

case in many Cossonids), the sides being sometimes strongly rounded and the disc

tumid on each side of the median depression. More elongate and less convex than

COSSONUS. 57

C. scrobiculatostriatus, the scutellum strongly transverse, the seriate punctures on

the elytra more closely packed, the interstices straighter, the prothorax more equally

punctate.

26. Cossonus micraspis, sp. n. (Tab. II. fige. 33, 33 a.)

Elongate, somewhat convex, shining, black (the elytra rufo-piceous in one immature specimen), the tarsi and

the base of the antenne ferruginous. Head foveate and coarsely punctured between the eyes, the globose

basal portion almost smooth, the eyes not prominent; rostrum short, broadly, transversely, subquadran-

gularly dilated at the apex, narrowed towards the base, the basal portion sometimes shallowly canaliculate,

closely, rather coarsely punctate. Prothorax a little broader than long, deeply bisinuate at the base,

narrowed and feebly constricted in front, more or less rounded at the sides; coarsely, closely punctate,

the punctuation becoming more diffuse and slightly finer on each side of the irregularly biseriate-

punctate, shallow, median groove, the latter terminating posteriorly in a large, triangular, rugose, shortly-

earinate excavation. Scutellum very small, narrow. LElytra usually wider than the prothorax, long,

subparallel ; closely and coarsely crenate-striate, the interstices rather convex, narrow, almost straight,

minutely uniseriate-punctate. Beneath somewhat closely punctate; ventral segments 1 and 2 very

slightly hollowed down the middle in the 3, unimpressed in the Q. Anterior cox separated by about

their own width.

Length 44-74, breadth 13-23 millim. (¢ Q.}

Hab. Mexico (Mus. Lrit.), Omilteme and Xucumanatlan in Guerrero (H. H. Smith),

Las Vigas, Huitzo (//ége), Juquila in Oaxaca (Sallé).

Numerous examples, mostly from Juquila and Omilteme. This insect has long

been known in collections under the MS. name of Cossonus ambigenus, Chevr.*.

C. micraspis is the Mexican representative of the Costa Rican C. euryaspis, from which

it may be separated by the narrow (not transverse) scutellum, the more closely

punctured under surface, and the feebly excavate first ventral segment in the male.

From C. scrobiculatostriatus and C. perfidiosus (voth of which have a small scutellum)

the present species may be known by the more closely punctured prothorax, the

abruptly dilated rostrum, the straighter elytral interstices, &c.

27. Cossonus rufonotatus, sp.n. (Tab. II. figg. 34, 34 a.)

Moderately elongate, depressed, shining, nigro-piceous, the prothorax piceous down the middle, the elytra each

with an indeterminate transverse patch on the outer part of the disc at the base, a spot near the apex,

and the lower margin, from about the basal third to the tip, rufous, the tarsi and the base of the antenne

ferruginous. Head foveate, transversely grooved and sparsely punctate between the eyes, the globose

basal portion smooth, the eyes prominent; rostrum more than half the length of the prothorax, curved,

strongly, transversely, quadrangularly dilated at the tip, the narrow basal portion longer than the apical

and gradually widened outwards, rather sparsely punctate; antennal club large. Prothorax slightly

broader than long, narrow, bisinuate at the base, narrowed and distinctly constricted in front, the

bind angles rather sharp; the disc with two deep, oblong, subtriangular, rugose, basal foves, separated

by the smooth median ridge, the rest of the surface uneven and somewhat closely punctate. Scutellum

transverse. Elytra much wider than the prothorax, subparallel in their basal half, the humeri rather

* Not C. ambiguus, Boh., an insect from an unknown locality (? Ceylon), the description of which will not

apply to the present insect.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, December 1909. I

58 RHYNCHOPHORA.

prominent; closely crenate-striate, the interstices raised, narrower than the strie, and minutely

uniseriate-punctate.

Length 33, breadth 14 millim.

Hab. Guaremaua, Purula in Vera Paz (Champion).

One specimen. A small, depressed form, with a narrow, uneven, deeply bifoveate,

carinate, closely punctured prothorax, broad, closely crenate-striate, rufo-maculate

elytra, and an apically dilated rostrum. The colour of the elytra may prove to be

variable. The C. parvicollis is an allied Mexican species.

28. Cossonus latipennis, sp.n. (Tab. III. figg. 1, 1 a.)

Very elongate, shining, black, the base of the antenne and the tips of the tarsi ferruginous. Head foveate

and rugosely punctate between the eyes, the globose basal portion sparsely punctured, the eyes large

and not very prominent; rostrum short, stout, closely punctate, the apical portion distinctly flattened,

subquadrate, and slightly wider than the basal portion; antennal club stout, ovate. Prothorax a little

broader than long, rounded at the sides, feebly constricted and much narrowed in front, deeply bisinuate

at the base; closely, moderately coarsely punctate, the disc with a deep, oblong, subquadrate, con fluently

punctured, interruptedly carinate excavation at the base. Scutellum subquadrate, smooth. LElytra very

much wider than the prothorax, elongate, subparallel, transversely depressed below the base; coarsely

seriate-punctate, the punctures along the anterior part of the suture strongly transverse, the interstices

very narrow, convex or cariniform, here and there transversely or obliquely confluent, and each with a

few widely scattered extremely minute punctures. Ventral segments closely punctate, 1 and 2 broadly

flattened or hollowed down the middle. Tarsi long.

Var. The elytral interstices strongly and irregularly reticulate throughout, the interspaces elongate, oblong,

or foveiform.

Length 72-9, breadth 22-3 millim. (d.)

Hab. GuateMata, Duefias [type], San Gerénimo [var.] (Champion).

Four specimens from Duefias and one from San Gerénimo. A large form, with

unusually broad elytra, the narrow raised interstices of which are here and there trans-

versely connected, an oblong, deep, subquadrate excavation at the base of the prothorax,

a short, feebly constricted rostrum, &c. The San Gerénimo example (unfortunately

injured after the above description was written) may prove to belong to a different

species.

29. Cossonus sargi, sp.n. (Tab. IIL. figg. 2, 2a.)

Very elongate, shining, black (or piceous, when not fully mature), the base of the antenne and the tips of

the tarsi ferruginous. Head foveate and rugosely punctate between the eyes, the latter large and not

prominent; rostrum short, stout, convex, somewhat flattened at the tip, the apical portion transversely

subquadrate and a little wider than the parallel-sided basal portion, closely punctate, a narrow oblong

space in the middle excepted ; antennal club stout, ovate. Prothorax slightly broader than long,

rounded at the sides, constricted and much narrowed in front, deeply bisinuate at the base; coarsely,

closely punctate, the puncturing becoming more diffuse on the dise,{the latter with a rather broad, deep,

rugosely punctured, interruptedly carinate, subtriangular excavation at the base. Scutellum smooth,

subquadrate. Elytra much wider than, and fully three times the length of, the prothorax, subparallel ;

coarsely seriate-punctate, the punctures becoming transverse towards the sides and base, the interstices

very narrow, convex, and each with an irregular row of scattered extremely minute punctures. Ventral

segments rather sparsely punctate 1 and 2 depressed down the middle in the g. Tarsi long.

Length 63-9, breadth 2-24 millim. (¢ 9.)

COSSONUS. 59

Hab. Guatemaa (Salvin), Totonicapam (Champion), Volcan de Acatenango (Sarg).

Found in numbers in the pine-forests, at an elevation of about 10,000 feet. A very

elongate form belonging to the same group as C. latus, with a relatively smaller and

more densely punctured prothorax, more prominent pterygia, and less coarsely seriate-

punctate elytra. Larger than the N.-American C. piniphilus, Boh., the prothorax with

a deep basal excavation, &c.

30. Cossonus latus. (Tab. III. figg. 8, 8a, 2.)

Cossonus latus, Boh. in Schénh. Gen. Cure. iv. p. 1038 (¢?)'.

Hab. Mexico! (Mus. Brit.), Orizaba (Mus. Holm. ; Sallé), Toxpam (Sallé), Jalapa

(Hoge), Omilteme in Guerrero (H. H. Smith); Guatumaa, Capetillo (Champion).

This species may be known by its short, sublinear, or very slightly widened, convex,

sparsely, finely punctate rostrum ; the head is coarsely punctate and deeply longitudi-

nally foveate between the eyes, the globose basal portion being almost smooth; the

prothorax is very coarsely punctate, and has a deep, rugose, subtriangular, basal fovea,

the puncturing on the disc being sometimes rather sparse; the elytra vary greatly in

length, and are very coarsely seriate-punctate, with narrow convex interstices; the

ventral segments | and 2 are broadly, shallowly depressed down the middle in the male.

The rostrum in fully-developed males is very slightly widened towards the apex, but in

the smaller males it is linear, as in the female. The type ( 2 ) is a very large elongate

specimen from Orizaba. The length varies from 54—9 mm.

31. Cossonus affaber. (Tab. III. figg. 4, 4a, 3.)

Cossonus affaber, Boh. in Schénh. Gen. Cure. viii. 2, p. 274".

Hab. Mexico (Mus. Sommer! ; Mus. Brit.).

Of this species there is a single specimen (¢) in the British Museum. It is very

like C. latus (the type of which is 2); but differs from the male of that insect in

having a more elongate excavation on the disc of the prothorax at the base, the seriate

punctures on the elytra larger and foveiform, and the raised interstices narrower and

more sinuous, and the rostrum a little more closely punctate. ‘The apical portion of

the rostrum is subquadrate, and very slightly wider than the basal portion, in the male.

The ventral depression is shallow.

32. Cossonus bicolor, sp. n. (Tab. III. figg. 5, 5a, 3.)

Cossonus bicolor, Sallé, in litt.

Elongate, depressed, shining, black, usually with the basal half of the elytra (or an oblong patch on the dige

of each of them at the base), the tips ef the tarsi, and the abdomen rufescent, sometimes almost wholly

plack or piceous. Head (the smooth globose basal portion excepted) coarsely, confluently punctate, with

an oblong fovea in the middle between the large, convex, very prominent eyes, the fovea often sulciform

and extending forwards on to the rostrum ; rostrum very short, broad, transversely dilated at the apex,

IT 2

60 RHYNCHOPHORA.

coarsely punctate, the apical portion smoother; antennal club stout, ovate. Prothorax a little broader

than long, somewhat oval, constricted and much narrowed in front, deeply bisinuate at the base; with

an elongate, subtriangular, flattened or slightly depressed space on the middle of the disc posteriorly, the

disc impressed with numerous, irregularly distributed, very coarse, rounded punctures, except along the

smooth median line (which becomes cariniform at the base), the sides closely and more finely punctured,

Scutellum rather large. Elytra a little wider than the prothorax, subparallel ; coarsely seriate-punctate,

the interstices narrow, rather convex, faintly uniseriate-punctate. Beneath closely punctate ; ventral

segments 1 and 2 slightly depressed down the middle in the ¢.

Length 42-74, breadth 14-23 millim. (¢ 9.)

Hab. Mexico (Mus. Brit.), Toxpam (Sallé); Guaremana, Zapote, Cerro Zunil

(Champion) ; Costa Rica, La Palma, Tarbaca (Biolley).

This insect is not uncommon in Mexico and Guatemala, and it has long been known

in collections under the MS. name C. bicolor. The three examples from Costa Rica

are uniformly black or rufo-piceous (as are also two of those from Cerro Zunil), and

have the frontal fovea less extended, but they seem to belong to the same species. An

elongate depressed form, with a short, broad, apically dilated rostrum, very prominent

eyes, an oblong frontal fovea, the disc of the prothorax very coarsely punctate, and the

basal half of the elytra usually rufescent.

33. Cossonus circumfusus, sp. n. (Tab. IIT. figg. 6, 6a, 3.)

Elongate, narrow, depressed, shining, black, the elytra (except at the apex and along the sides posteriorly),

abdomen, and tarsi rufescent, the antenne fusco-ferruginous. Head foveate and punctate between the

eyes, the globose basal portion almost smooth, the eyes large and prominent; rostrum rather convex,

short, stout, broadly, transversely, subquadrangularly dilated at the apex, somewhat closely punctate,

unimpressed; antennal club large, ovate. Prothorax broader than long, rounded at the sides, gradually

and obliquely narrowing from near the base to the subapical constriction, the base moderately bisinuate ;

coarsely punctate, the punctuation diffuse on the dise, the larger impressions arranged in two or three

irregular rows along each side of the subcariniform median line, the disc triangularly depressed posteriorly.

Scutellum rather large, transverse. Elytra a little wider than the prothorax, moderately long, sub-

parallel, flattened on the disc; coarsely punctate-striate, the interstices narrow, raised, obsoletely

uniseriate-punctate. Ventral segments 1 and 2 broadly depressed down the middle in the ¢.

Length 4-5, breadth 1,1,-12 millim.

Hab. Costa Rica, La Uruca 1100 metres (Biolley).

Three specimens, similarly coloured. This species resembles the smaller examples of

C. bicolor, but it has the rufous coloration extending to the abdomen and to near the

apex of the elytra; the rostrum narrower at the base and more dilated at the apex, not

so coarsely punctate, and unimpressed ; and the seriate punctures on the elytra smaller.

The flattened upper surface, rufescent elytra, and apically dilated rostrum distinguish

C. circumfusus from various other allied Central-American forms. C. hamiltoni,

Slosson, from Florida and Cuba *, is smaller and narrower than the present insect, and

has the rostrum relatively narrower at the base, the upper surface less coarsely

punctate, &c.

* There is a specimen of this species from Cayamas, Cuba, in the U.S. Nat. Museum.

COSSONUS. 61

34. Cossonus parvicollis, sp. n. (Tab. IIL. figg. 7, 7 a.)

Moderately elongate, depressed, shining, nigro-piceous, the elytra with the humeri and lower margins inde-

terminately rufescent, the tarsi and the base of the antenne ferruginous. Head small, foveate and

punctured between the somewhat prominent eyes, the globose basal portion smooth ; rostrum rather

more than half the length of the prothorax, quadrangularly dilated at the apex, the basal portion a little

longer than the apical, rather sparsely punctate. Prothorax nearly as long as broad, narrow, the sides

subparallel at the base and arcuately converging anteriorly to the distinct subapical constriction, the

base bisinuate ; closely, coarsely punctate, the disc with a shallow excavation and a short lonsitudinal

carina at the base, preceded by a long median sulcus. Scutellum very small. Elytra much wider than

the prothorax, subparallel in their basal half, the humeri rounded and not prominent; closely coarsely

crenate-striate, the interstices narrow, raised, minutely uniseriate-punctate.

Length 32, breadth 14 millim.

Hab. Muxico, Guanajuato (Sallé).

One specimen. Separable from C. rufonotatus by the longer, mesially sulcate,

basally carinate, more coarsely punctured prothorax, the minute scutellum, the less

prominent humeri, and the less transverse apical portion of the rostrum. The relatively

narrow prothorax, broad elytra, with rufous humeral spot, and comparatively small

head, render C. parvicollis easily recognizable.

95 Cossonus aterrimus, sp. n. (Tab. III. figg. 8, 8a, 3.)

Moderately elongate, rather convex, shining, the elytra often alutaceous and subopaque, black, the base of the

antenne and the tarsi more or less ferruginous. Head longitudinally foveate, feebly transversely grooved,

and punctate between the eyes, the globose basal portion obsoletely punctured, the eyes depressed ;

rostrum short, stout, transversely, subquadrangularly dilated at the apex, the basal portion longer than

the apical, closely punctate, apparently somewhat smoother in the 2. Prothorax a little broader than

long, rather convex, moderately rounded at the sides, narrowed and very feebly constricted in front,

deeply bisinuate at the base ; coarsely, closely punctate, the punctuation becoming finer and more diffuse

on the disc, the latter with a triangular, coarsely rugose, shortly carinate depression at the base, the

depression preceded by a few biseriately-arranged coarse punctures. Scutellum small. Elytra wider

than the prothorax, moderately long, subparallel in their basal half; punctate-striate, the punctures

becoming larger and transverse towards the base and fine towards the apex, the interstices faintly uni-

seriate-punctate, feebly convex, sinuous, narrower, and more raised anteriorly. Ventral segments | and 2

hollowed down the middle, and 5 transversely depressed at the apex, in the ¢,1 and 2 also feebly

depressed in the 9.

Length 34-5, breadth 14-13 millim. (6 & .)

Hab. Mexico, Toxpam [type] (Sal/é), Atoyac (Dugés), Motzorongo (#/ohr), Yucatan

(Gaumer); NICARAGUA, Chontales (Janson) ; Costa Rica, Trazu, Caché (Rogers).

A perplexing insect, with the puncturing of the prothorax and elytra finer than in

C. scrobiculatostriatus and C. perfidiosus, and the general facies of the smaller and less

convex C. exaratus. The various Costa Rican specimens have a long frontal fovea,

and the head almost without transverse groove between the eyes; the two from

Motzorongo were sent with C. exaratus, but they cannot be included under that

species, from which they differ in their more depressed eyes, &c. A male from

Toxpam is figured.

62 RHYNCHOPHORA.

36. Cossonus exaratus.

Cossonus exaratus, Boh. in Schénh. Gen. Cure. iv. p. 1018".

Var. Cossonus rufescens, Chevy. in litt.’

g. Ventral segments 1 and 2 broadly excavate down the middle.

Hab. Mexico!? (Trugqui, in coll. Fry; Mus. Brit.), Toxpam (Saillé), Las Vigas

(Hoge), Motzorongo (Flohr), Teapa (H. H. Smith) ; Guatemaua, near the city, Capetillo,

Zapote (Champion).

A small form, with a deep, oblong frontal fovea, somewhat prominent eyes, a rather

small prothorax—which is sharply, longitudinally carinate down the middle of the

triangular, rugose, basal excavation and somewhat diffusely punctured on the disc,—

and closely crenate-striate elytra, the ventral segments 1 and 2 deeply excavate down

the middle in the male. Found in numbers at Guatemala city and Capetillo, the

males from these places agreeing with the type (¢) belonging to the Stockholm

Museum. The Mexican specimens vary a good deal inter se, some of them having the

elytra rufescent (rufescens, Chevr.) as in typical C. impressus.

37. Cossonus convexiusculus.

Cossonus convexiusculus, Boh. in Schénh. Gen. Cure. iv. p. 1007 *.

Hab. Mexico (Hoge, ex coll. Solari), Orizaba (Mus. Chevrolat 1).

It is somewhat doubtful if the specimen of this species communicated by Dr. Sjéstedt

is the actual “type”; it seems to be a variety of C. exaratus with the prothorax more

closely punctured on the disc, a little less depressed in the middle at the base, and the

short basal carina abbreviated anteriorly. Boheman compared C. conveaxiusculus with

the N.-American C. concinnus *, and in Schénherr’s work it is placed in a different

section (=Borophieus, Woll.) of the genus from that including C. exaratus. A single

example given us by Signor Solari agrees very nearly with the Mexican insect (which

is not labelled with any definite locality) sent me from Stockholm.

88. Cossonus purulensis, sp. n.

Elongate, depressed, shining, black, the base of the antenne and the tarsi more or less ferruginous. Head

finely punctate and feebly foveate between the eyes, the globose basal portion obsoletely punctate, the

eyes rather prominent; rostrum short, quadrangularly dilated at the apex, the apical and basal portions

about equal in length, the latter obsoletely canaliculate anteriorly, sparsely, finely punctate. Prothorax

slightly broader than long, somewhat rounded at the sides, gradually and obliquely narrowing from near

the base, the latter rather feebly bisinuate, the subapical constriction indistinct ; Sparsely, unequally punc-

tate, the punctures coarse and irregularly distributed on the disc along each side of the smooth median

line, the latter flattened and cariniform at the base and limited externally by a short shallow, transverse,

Tugose space. Scutellum small, transverse. Elytraa little wider than the prothorax, subparallel in their

basal half; closely crenate-striate, the interstices straight, obsoletely uniseriate-punctate, about as wide

as the strie, and feebly convex. Ventral segment 1 broadly hollowed down the middle in the ¢.

Length 33-383, breadth 1-14, millim. (¢.)

* ©. concinnus, Boh., does not appear to have been correctly identified by American authors, to judge from

the specimens sent me under that name.

COSSONUS. 63

Hab. Guaremata, Purula in Vera Paz (Champion).

Three specimens, one ( 2?) with the ventral depression shallow, the others evidently

males. More elongate than C. duplicatus, the apical portion of the rostrum broader,

the prothorax sparsely, confusedly punctate, with the basal depression reduced to a

short transverse space, which is interrupted in the middle by the flattened cariniform

extension of the smooth median line. The shallowly impressed disc of the prothorax

also separates C. purulensis from C. exaratus, C. convexiusculus, &c. The prothorax

is less oblong and more finely punctured than in C. depressicollis.

39. Cossonus impressus.

Cossonus impressus, Boh. in Schénh. Gen. Cure. iv. p. 1019".

3. Ventral segment 1 or 2 with a faint narrow groove down the middle.

Hab. NortH America, Key West and Kissimmee in Florida.—Cvusa!, Cayamas ;

Jamaica},

Var. Elytra black or piceous.

? Cossonus impressifrons, Horn, Proc. Am. Phil. Soc. xiii. p. 440° (nec Boh.).

Hah. Norru America, Florida ?.—Mexico (Mus. Brit.), Toxpam (Sallé), Frontera in

Tabasco (Hége), Temax in N. Yucatan (Gaumer); British Honpuras, Rio Sarstoon

(Blancaneaux); Guatemata, Cahabon, San Juan, Chacoj, and Sabo in Vera Paz

(Champion), Trece Aguas (Barber & Schwarz, in U.S. Nat. Mus.); Costa Rica,

Puntarenas (Biolley).

Found in abundance at Puntarenas, Costa Rica, and at Chacoj (La Hamaca) in the

Polochic valley, the Central-American specimens differing from those from Florida

(sent me by Mr. Barber as C. impressifrons, Boh.*) and the Antilles in having the

elytra black or piceous. These examples are only separable from C. exaratus (which

sometimes has the elytra rufescent) by their larger and longer prothorax and the almost

obsolete ventral groove in the male. The long series from Puntarenas and Chacoj are

separable from C. exaratus by the above-mentioned characters, and I have therefore

retained the two forms as distinct. Both have a triangular, rugose, carinate excavation

at the base of the prothorax. |

40. Cossonus flavovittatus, sp.n. (Tab. III. figg. 9, 9 a.)

Moderately elongate, depressed, shining, nigro-piceous, the prothorax rufescent, the elytra each with a very

broad brownish-yellow vitta extending from the base to near the apex (leaving the suture and outer

margins infuscate), the antenne (the fuscous club excepted) and tarsi ferruginous. Head longitudinally

foveate and punctured between the eyes, the globose basal portion almost smooth, the eyes large and

rather prominent; rostrum more than half the length of the prothorax, curved, strongly, transversely,

* The type of this species was from Pennsylvania. It was said to have the prothorax flat on the disc and

obsoletely carinate at the base. -

64 RHYNCHOPHORA.

quadrangularly dilated at the apex, the basal portion longer than the apical, rather closely punctate.

Prothorax a little broader than long, somewhat feebly bisinuate at the base, the sides subparallel behind

and feebly rounded and subobliquely converging forwards to the shallow subapical constriction; coarsely,

somewhat closely punctate, except along the smooth median line, which becomes cariniform posteriorly,

and is limited on each side by a shallow transverse depression. Scutelium small, subquadrate. Elytra

much wider than the prothorax, moderately long, parallel; closely crenate-striate, the interstices about

as wide as the striw, almost flat, minutely uniseriate-punctate. Beneath rather sparsely punctate ;

ventral segments 1 and 2 excavate down the middle.

Length 43, breadth 14 millim. (<¢.)

Hab. GuatEMaLa, Volcan de Agua 8500-10,500 feet (Champion).

Two males, probably found under bark of deciduous trees, which cease at about an

elevation of 8000 feet, and are there replaced by pines. This insect has the elytra

flavo-vittate, as in C. divittatus, but the prothorax is rufescent, faintly impressed at

the base, and wants the large polished spaces on the disc, the rostrum is closely

punctate, and the elytra are not so coarsely crenate-striate. ‘The Colombian C. vittatus,

Kirsch, is a more elongate form.

41. Cossonus segnis. (Tab. III. fige. 10, 10a, ¢ .)

Cossonus segnis, Faust, Stett. ent. Zeit. 1896, p. 134°.

Cossonus antiquus, De}. in litt.’.

Cossonus curvatostriatus, Chevy. in litt.’.

Elongate, rather convex, shining, black, the tips of the tarsi ferruginous. Head deeply foveate and transversely

grooved between the eyes, the globose basal portion smooth, the eyes depressed ; rostrum curved, stout,

abruptly, quadrangularly dilated at the apex, with the narrow basal portion compressed and longer

than the apical, shining or opaque, closely, finely punctate, and smoother or obsoletely carinate down the

middle. Prothorax a little broader than long, arcuately narrowing anteriorly, feebly constricted in front,

and deeply bisinuate at the base; the disc with a transverse, subtriangular, very coarsely punctured,

depressed space at the base (which sometimes has a short carina behind), preceded by a broad, outwardly-

widened, almost smooth or faintly punctate area, the rest of the surface coarsely punctured. Scutellum

small. Elytra long, parallel, considerably wider than the prothorax, transversely depressed below the

base; coarsely, subsinuately, seriate-punctate, the punctures becoming much coarser towards the base

and fine towards the apex, the interstices smooth, almost flat, sometimes raised anteriorly. Beneath

rather closely punctate; ventral segment 1 unimpressed, and 5 with a deep transverse fovea, in the ¢.

Length 53-73, breadth 13-22 millim. (¢ 2.)

Hab. Costa Rica, Irazu (Rogers), La Palma and Tarbaca 1600-1700 metres

(Biolley: ¢ @)—CoLtompBia ; VENEzuELA, Colonia Tovar!; Ecuapor; Brazit, Rio

Janeiro; Prru!.

This species seems to be known in collections under the above-quoted MS. names.

Amongst the eight specimens seen from Costa Rica, several have a deep fovea on the

fifth ventral segment, and these are assumed to be males. The present insect has an

almost smooth space extending across the middle of the prothorax, and the very

coarsely punctured transverse depression at its base is somewhat rounded anteriorly.

The Costa Rican examples differ from the type, and from others before me from South

America, in having the rostram opaque or subopaque and obsoletely carinate.

COSSONUS. 65

42. Cossonus bifoveatus, sp.n. (Tab. III. figg. 11, 11a.)

Elongate, depressed above, shining, black, the base of the antenne and the tarsi in part ferruginous, the rest

of the legs and the elytra sometimes piceous. Head longitudinally foveate, transversely grooved, and

punctate between the eyes, the globose basal portion almost smvoth, the eyes large and not prominent ;

rostrum feebly curved, rather short, narrow at the base, broadly, abruptly, subquadrangularly dilated at

the apex, densely punctate; antennal club large, ovate. Prothorax broader than long, moderately

rounded at the sides, narrowed and feebly constricted in front, deeply bisinuate at the base; with a

deep, rugose, subtriangular excavation at the base (in the centre of which is a short basal carina)

preceded by a small, shallow, oval, coarsely punctured depression, the two depressions more or less

connected and limited exteriorly by a large, oblique, polished, faintly punctate space, the sides very

coarsely, closely punctate. Scutellum small. Elytra a little wider than the prothorax, subparallel,

flattened on the disc; moderately coarsely crenate-striate, the punctures closely placed, the interstices

feebly convex, narrow, sinuate at the base, and minutely uniseriate-punctate. Beneath closely punctate ;

ventral segment 1 depressed down the middle-in the ¢.

Length 4,1,-54, breadth 12-2 millim.

Hab. Guatemaia, Cahabon in Alta Vera Paz [type] (Champion); NIcARAGUA,

Chontales (Janson); Panama, Volcan de Chiriqui (Champion) —Co.omBtA, Santa

Marta (coll. Fry).

Six specimens. A somewhat depressed form related to C. foveatus, with the

rostrum narrow at the base, abruptly dilated at the apex, and densely punctate, the

polished: spaces on the disc of the prothorax well-defined, the seriate punctures of the

elytra closely packed. Less convex than C. scrodiculatostriatus and C. perfidiosus,

the prothorax with more distinct polished spaces on the disc.

43. Cossonus foveatus. (Tab. IL. figg. 12, 12a, 2; 13, var. lebasi, ¢ .)

Cossonus foveatus, Boh. in Schénh. Gen. Cure. iv. p. 1026°.

Hab. Mexico (Mus. Brit.), Orizaba! (Mus. Holin.), Toxpam (Sallé}, Cordova

(Hoge); Brirish Honpuras, Rio Sarstoon (Blancaneaux); Guatemana, Capetillo

(Champion); Nicaragua, Chontales (Belt); Costa Rica, Valle de Baru (Pitter),

Monte Retondo (Underwood), La Palma, Tablazo, Surubres (Biolley), Irazu (Rogers).

—FEcvapor (coll. Fry.)

Var. Smaller, the rostrum a little shorter; the elytra (the suture and margins, and sometimes a space across

the middle, excepted) often rufescent or rufo-piceous, or with a reddish spot near the apex, sometimes

wholly black.

Cossonus lebasii, Boh. loc. cit. p. 1029°; viii. 2, p. 272°.

Hab. Mexico, Tehuantepec (//ége); GuaremaLa, Trece Aguas (Schwarz & Barber),

Puerto Barrios (C. C, Deam, in U.S. Nat. Mus.) ; Nicaragua, Grenada (Sallé), Chon-

tales (Belt).—Cotoms1a °, Carthagena?; VENezvELA, Caracas *; ‘TRINIDAD.

The long series of specimens from Nicaragua and Costa Rica connect the Mexican

C. foveatus with the Colombian C. lebasi (the types of both of which I have seen),

and they cannot be maintained as distinct. The rostrum in this insect is comparatively

smooth, rather long, and abruptly, quadrangularly dilated at the tip, the antenne

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, December 1909. KK

66 RHYNCHOPHORA.

being inserted beyond the middle ; the head is abruptly constricted and smooth behind

the eyes, which are depressed ; the prothorax has a very deep, rugose, triangular

excavation at the base, preceded by two irregular rows of coarse punctures, limited

outwards by a broad impunctate space. The ventral segments | and 2 are narrowly

sulcate down the middle in the male. The sides of the prothorax are reddish in some

of the southern specimens with rufescent elytra. The length varies from 33-6 mm.

44, Cossonus punctifrons. (Tab. III. fige. 14, 144, 3.)

Cossonus punctifrons, Boh. in Schénh. Gen. Cure. iv. p. 1027°*.

? Cossonus mexicanus, De}. Cat.”.

Hab. Mexico 2, Orizaba! (Mus. Holm.).

This species (the unique type of which is here figured) has the prothorax sculptured

and excavate much as in C. foveatus; but the rostrum is extremely short, closely

punctate, and abruptly, transversely, subquadrangularly dilated at the tip, the eyes

are more prominent, the elytral interstices are flat, and the ventral depression of the

male is much broader. The prominent eyes and the very short rostrum also separate

C. punctifrons from C. bifoveatus ; and the more depressed, broader form, the larger,

polished, faintly punctured spaces on the disc of the prothorax, and the shorter

abruptly dilated rostrum, distinguish it from C. evanescens.

45. Cossonus irregularis, sp. n. (Tab. III. figg. 15, 15a, 3.)

Moderately elongate, rather convex, shining, black, the antennz (the club excepted) and tarsi obscure

ferruginous. Head foveate and finely punctate between the eyes, the globose basal portion smooth, the

eyes not prominent; rostrum short, gradually widening to the feebly, quadrangulariy dilated apical

portion, the two portions about equal in length, shining, sparsely, finely punctate, without trace of median

ridge or depression. Prothorax almost as long as broad, moderately rounded at tke sides, obliquely

narrowing forwards, the subapical constriction almost obliterated, the base bisinuate; very coarsely

punctate at the sides and down the middle, and with a polished, faintly punctate space on each side of

the elongate, triangular, median depression, the latter terminating posteriorly in a deep, rugose, inter-

ruptedly carinate area, the punctures preceding this foveiform and arranged in an irregular double or

treble series. Scutellum very small, transverse. Elytra moderately long, a little wider than the

prothorax, subparallel in their basal half; coarsely punctate-striate, the interstices about as wide as the

strie, faintly uniseriate-punctate, the inner ones sinuous and somewhat raised towards the base.

Ventral segments 1 and 2 narrowly sulcate down the middle in the ¢.

Length 44, breadth 1} millim. (<¢.)

Hab. GuatEMALA, San Gerénimo in Baja Vera Paz (Champion).

Two males. Very like C. punctifrons, Boh. (¢), but narrower and more convex,

the rostrum much less widened at the apex and more finely punctured, the eyes less

prominent, the prothorax not so deeply sinuate at the base, the ventral excavation

narrower. Less elongate than C. convewicollis (specimens of which occur with small

polished spaces on the prothorax), the punctuation of the upper surface not so coarse,

the prothorax shorter, the rostrum less dilated at the tip. The rostrum is much

shorter than in C. foveatus and C. bifoveatus.

COSSONUS. 67

46. Cossonus ocularis, sp.n. (Tab. IIT. fig. 16, ¢.)

Elongate, rather convex, very shining, black, the base of the antenne and the tarsi ferruginous. Head

feebly, narrowly foveate and finely punctate between the very large, depressed eyes, the globose basal

portion smooth; rostrum short, convex, rather stout, gradually widening to the transverse, sub-

quadrangular apical portion, sparsely, finely punctate; antenne with a rather slender funiculus and a

large, ovate club. Prothorax nearly as long as broad, the sides parallel at the base and obliquely

converging anteriorly to the almost obsolete subapical constriction, the base deeply bisinuate ; the disc

with a subcarinate, irregularly biseriate-punctate, elongate-triangular depression, which becomes rugose

and deeper at the base, and is bordered externally by a broad polished space, the sides closely, moderately

coarsely punctate. Scutellum very small, transverse. Elytra considerably wider than the prothorax,

moderately long, parallel ; punctate-striate, the punctures not very closely placed and becoming much

finer towards the apex, the interstices smooth, flat, as broad as the striw. Metasternum and abdomen

very sparsely, finely punctate, the ventral segments 1 and 2 narrowly and deeply excavate down the

middle.

Length 43, breadth 12 millim. (¢.)

Hab. Mexico, Chilpancingo in Guerrero 4600 feet (Hl. H. Smith).

One specimen. A narrow, parallel-sided, somewhat convex form, approaching

C. foveatus, but with the rostrum shorter, the eyes larger, the prothorax more oblong,

not so coarsely punctate laterally, and with the basal depression shallower, &c.

47. Cossonus ligniperdus. (Tab. III. fig. 17.)

Cossonus ligniperdus, Boh. in Schénh. Gen. Cure. iv. p. 1028 °.

Hab. Mexico (Hége, ex coll. Solari), Orizaba (Mus. Chevrolat ').

Larger and more elongate than C. exaratus; the rostrum shorter and broader,

abruptly dilated at the apex, and closely punctate; the frontal fovea deep; the

prothorax coarsely, irregularly biseriato-foveate down the middle, the triangular

excavation carinate at the base, deep, and extending forwards to near the apex,

the disc with an almost smooth space on each side of the excavation; the elytra

depressed on the disc and closely crenate-striate. We are indebted to Signor Solari

for a specimen nearly agreeing with the Orizaba type (fig. 17) communicated by

Dr. Sjéstedt.

48. Cossonus duplicatus, sp. n. (Tab. III. fig. 18, ¢.)

Moderately elongate, depressed, shining, black or piceous (immature), the base of the antenne and the tarsi

more or less ferruginous. Head longitudinally foveate and sparsely punctured between the eyes, the

globose basal portion smooth, the eyes rather prominent; rostrum short, feebly, transversely, sub-

quadrangularly dilated at the apex, closely, finely punctate. Prothorax slightly broader than long,

moderately rounded at the sides, narrowed and constricted in front, somewhat feebly bisinuate at the base ;

the disc with a shallow, triangular, subcarinate, irregularly biseriate-punctate depression extending along

the middle to the subapical transverse groove, the depression limited externally by a finely and sparsely

punctured (in one specimen almost polished) space, the punctuation becoming closer and much coarser

along the sides and flanks. Scutellum very small, transverse. LElytra a little wider than the prothorax,

subparallel in their basal half; closely punctate-striate, the interstices obsoletely uniseriate-punctate,

flat, becoming feebly convex anteriorly. Beneath with a broad space down the middle finely and

sparsely, the sides and the prothorax more coarsely and closely, punctate; ventral segments 1 and 2

depressed down the centre in the ¢.

Length 23-34, breadth 3-1,/; millim. (¢ 2.)

KK 2

68 RHYNCHOPHORA.

Hab. Mexico, Toxpam (Saldé: var.) ; Guatemata, Senahu and San Juan [type] in Alta

Vera Paz (Champion), Cacao near Trece Aguas (Schwarz & Barber, in U.S. Nat. Mus.).

Sixteen specimens, all but one from the vicinity of the Polochic Valley. A small

depressed form resembling C. exaratus and C. convexiusculus, with a long, shallow,

triangular, biseriate-punctate, subcarinate depression extending down the disc of the

prothorax, and the depression limited externally by a broad, finely and sparsely

punctured space, the ventral surface (the sides and prothorax excepted) also very

finely punctate. Smaller, flatter, and less coarsely punctured than C. ligniperdus, the

prothorax with a smooth cariniform median line, the rostrum a little longer and less

dilated at the apex. In one of the four examples from Senahu the seriate punctures

on the prothorax are large and the space exterior to them is almost impunctate.

The one from Mexico has the puncturing of the prothorax altogether coarser, but it

seems to belong to the same species.

49. Cossonus canaliculatus. (Tab. III. figg. 19, 19 a.)

Curculio canaliculatus, Fabr. Ent. Syst. i. 2, p. 471 (1792) *.

Hylesinus canaliculatus, Fabr. Syst. Eleuth. 11. p. 8395 (1801) * (nee Cossonus canaliculatus, Fabr.

Syst. Eleuth. 1. p. 496, and Boh. in Schénh. Gen. Cure. iv. p. 1023, from Sumatra

and Java).

Cossonus vulneratus, Illiger, Mag. iv. pp. 181, 149 (1805) *; Rosensch. in Schénh. Gen. Cure. iv.

p. 1030‘; viii. 2, p. 272°.

3. Ventral segments 1 and 2 deeply excavate down the middle.

Hab. Mexico, Acapulco, Mexico city, Cordova, Jalapa, Las Vigas (Hoge), Vera

Cruz (Sallé), Teapa (H. H. Smith); Guatemana, El Reposo, Capetillo, San Gerénimo

(Champion) ; Costa Rica, Puntarenas (Biolley); Panama, Volcan de Chiriqui (Cham-

pion).—CoLoMBIA, Carthagena? ; Trinipap (coll. Pry); ANTILLES '2, Puerto Rico.

This is a small, rather convex, moderately elongate species (said by Rosenschoeld

to be of the size of the Palearctic Rhizophagus bipustulatus), with a short, feebly

quadrangularly dilated rostrum, a canaliculate frons, rather prominent eyes, an oblong

prothorax—which is irregularly biseriato-foveate and triangularly depressed down the

middle, the depression terminating posteriorly in a deep, triangular, rugose, carinate

area, and limited externally by a long polished space,—and rather short, closely

crenate-striate elytra. ‘The ventral segments 1 and 2 are deeply excavate along the

middle in the male, as in C. exaratus. It is not clear why the name C. vulneratus is

used for this American species in Schénherr’s work *.

50. Cossonus evanescens, sp. n. (Tab. III. figg. 20, 20a.)

Elongate, narrow, cylindrical, rather convex, shining, black, the base of the antenne, and the tarsi in part,

ferruginous. Head foveate and finely punctate between the eyes, the globose basal portion almost

* The name illigert is suggested for the eastern form.

COSSONUS. 69

smooth, the eyes not prominent; rostrum short, feebly, transversely, subquadrangularly dilated at the

apex, finely, somewhat closely punctate ; antennal club large. Prothorax about as long as broad, oblong-

subquadrate, feebly constricted and arcuately narrowed in front, and also narrowed at the base, the

latter deeply bisinuate; the disc with an elongate-triangular, irregularly biseriato-foveate, carinate

depression extending from the base to near the apex (the smooth median line limited on each side

posteriorly by a deep, triangular, rugose area), the depression limited externally by a polished, almost

impunctate space, the outer margins and flanks coarsely, closely punctate. Scutellum small. Elytra

elongate, scarcely wider than the prothorax, subparallel ; punctate-striate, the punctures becoming rather

coarse and crenate towards the base and fine towards the apex, the interstices broader than the strie,

flat, slightly raised anteriorly. ibis broad.

Length 4, breadth 4, millim.

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. A long, narrow, cylindrical form, with an elongate-triangular,

biseriato-foveate, carinate excavation on the prothorax, limited externally by an

ill-defined polished space, and the punctured strie of the elytra becoming very much

finer towards the apex. C. evanescens approaches C. ligniperdus, but the latter is less

convex and has the elytra more coarsely punctate-striate throughout.

51. Cossonus nitidicollis, sp.n. (Tab. III. figg. 21, 214.)

Elongate, narrow, flattened on the disc, very shining, black or nigro-piceous, the base of the antenne, the tarsi,

and sometimes the tibie also, ferruginous. Head foveate and transversely grooved between the somewhat

convex eyes, the globose basal portion and the interocular space almost smooth; rostrum rather convex,

curved, quadrangularly dilated at the apex, the narrow basal portion a little longer than the apical, and

almost smooth. Prothorax about us long as broad, subquadrate, narrowed and very feebly constricted in

front, moderately bisinuate at the base; the disc with a very deep, sharply-detined, rugosely punctate,

shortly carinate area at the base, and an abbreviated single or double row of coarse punctures between

it and the apex, the rest of the dorsal surface polished and almost impunctate, the flanks coarsely

punctured. Scutellum small. Elytra moderately long, subparallel, a little wider than the prothorax ;

seriate-punctate, the punctures becoming coarser and arranged in sinuous lines towards the base and

fine towards the apex, the interstices smooth, flat, broad on the disc, narrow at the sides.

Length 3-32, breadth 4-1,/; millim.

Hab. Mexico (Mus. Brit.), Jalapa (Hoge); GuatEMAua, San Gerénimo (Champion) ;

Costa Rica, Caché (Rogers), La Uruca 1100 metres (Bvolley).

Eight examples, one of which has done duty for C. foveatus for many years in the

British Museum. A small, narrow, somewhat depressed form related to C. foveatus,

with the entire disc of the prothorax (the very deep triangular basal fovea and a few

coarse punctures preceding it excepted) polished, the elytra with rows of scattered

punctures and flat interstices. An allied undescribed species (C. scrobicollis, Chevr.,

mactatus, Jekel) occurs at Caracas. A Costa-Rican specimen is figured.

52. Cossonus bigeminatus, sp. n. (Tab. IIT. figg. 22, 22 a.)

Moderately elongate, depressed, shining, black or piceous, the elytra (the suture, or the suture, sides, and apex,

excepted), and sometimes a space down the middle of the prothorax, rufo-castaneous, the base of the

antenne, and in one specimen the legs also, ferruginous. Head foveate and sparsely punctate between

the rather prominent eyes, the globose basal portion almost smooth; rostrum short, curved, convex,

abruptly subquadrangularly dilated at the apex, sparsely finely punctate. Prothorax transversely sub-

RHYNCHOPHORA.

quadrate, abruptly constricted in front, bisinuate at the base, the sides more or less compressed at the

middle and rounded anteriorly ; the disc broadly, subtriangularly depressed down the centre from the

transverse subapical groove to the base, and with an irregular, double, longitudinal row of coarse punctures

on each side of the smooth median line, the rest of the surface with minute, widely scattered punctures,

which become coarser and closer along the outer margin. Scutellum smooth, flat, rather large. Elytra a

little wider than the prothorax, flattened, subparallel ; closely and regularly crenate-striate, the interstices

narrow, feebly convex, and obsoletely uniseriate-punctate.

Length 34-41, breadth 14-14 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sallé) ; Guatemala, Cahabon and Panima in

Vera Paz, Zapote (Champion).

Six specimens. A flattened form approaching the widely-distributed C. thoracicus,

Boh., with the globose portion of the head abruptly separated from the anterior

portion, the rostrum longer and more constricted at the base, the two double rows of

coarse punctures on the disc of the prothorax less oblique, the scutellum a little

smaller, and the elytra (except along the sides and suture) more or less rufescent.

53. Cossonus bivittatus, sp.n. (Tab. III. figg. 23, 23 a.)

Moderately elongate, depressed, very shining, black, the elytra each with an extremely broad brownish-

yellow vitta extending from the base to near the apex (leaving the suture and outer margins black), the

base of the antenne and the tarsi ferruginous. Head narrowly foveate and obsoletely punctate between

the eyes, the globose basal portion smooth ; rostrum more than half the length of the prothorax, rather

convex, transversely, subquadrangularly, and abruptly dilated at the apex, the narrow basal portion a

little longer than the apical, sparsely, obsoletely punctate. Prothorax broader than long, rounded at

the sides anteriorly, narrowed and constricted in front, moderately bisinuate at the base ; the disc with

an elongate, triangular depression extending from the base to the shallow, transverse, subapical groove,

the depression divided down the middle by a rather broad, smooth, uninterrupted, cariniform ridge,

which is limited on each side anteriorly by a few irregularly-distributed coarse punctures, and posteriorly

by an oblong, deep, rugose area, the rest of the surface almost smooth to near the coarsely punctured

outer margins. Scutellum strongly transverse, smooth. Elytra moderately long, much wider than the

prothorax, subparallel; coarsely crenate-striate, the punctures well separated one from another, the

interstices somewhat convex, almost smooth, rather broad on the disc, narrow at the sides.

Length 42, breadth 13 millim.

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

One specimen. A remarkably distinct species, with broadly ochreo-vittate elytra

and a relatively narrow prothorax, the latter with a median ridge and a broad longi-

tudinal space on the outer part of the disc almost smooth, and two deep, oblong,

rugose fovee at the base. C. vittatus, Kirsch, from Bogota, the type of which I have

seen, is somewhat similarly marked.

54, Cossonus thoracicus. (Tab. III. figg. 24, 24 a.)

Cussonus thoracicus, Boh. in Schénh. Gen. Cure. iv. p. 1032 (nec Pase.*)*.

Hab. Mextco (Mus. Brit. ; Hoge, in coll. Solart), Orizaba'! (Mus. Holm.), Toxpam

(Sallé), Tuxtla (Barrett, in U.S. Nat. Mus.) ; Guatemaa, Sabo, Chacoj, and Cahabon

in Vera Paz, Zapote (Champion); Panama, Volcan de Chiriqui (Champion), Tabernilla,

* (. thoracicus, Pase. Ann. Mus. Genova, (2) pp. 813 (1885), from New Guinea, requires a new name.

COSSONUS. 71

Canal Zone (Busck, in U.S. Nat. Mus.) —Cotomsia (coll. Janson); Ecuador; BRaztit ;

ANTILLES, St. Vincent (7. H. Smith).

A rather small, moderately elongate, depressed form, with the rostrum broad, very

short, apically dilated, finely punctate; the eyes somewhat prominent; the head

exserted, with the basal portion continuous with the front and constricted at the sides

only at some little distance behind the eyes, sometimes feebly foveate between

them ; the prothorax broader than long, bisinuate at the base, abruptly constricted

anteriorly, triangularly, longitudinally depressed on the disc, the depression large and

with an oblique irregular double series of coarse punctures on each side extending

forwards to the transverse, sinuous, subapical groove and there confluent (the inter-

vening space sometimes with a few additional impressions), the rest of the surface to

near the outer margin very sparsely minutely punctured ; the scutellum rather large,

flat ; the elytra flat on the disc, coarsely crenate-striate. A variety occurs at Chimbo,

Ecuador, with the disc of each elytron rufescent. The length varies from 34-44 mm.

55. Cossonus marcidus, sp. n. (Tab. III. fig. 25.)

Moderately elongate, depressed, shining, black or piceous (immature). Head exserted, feebly constricted at

the sides behind the rather prominent eyes, the front continuous with the vertex, closely punctate,

without trace of fovea; rostrum very short, about as broad as long, transversely dilated at the apex,

closely punctate. Prothorax a little broader than long, rounded-subquadrate, constricted and much

narrowed in front, feebly bisinuate at the base; the disc broadly, subtriangularly flattened or depressed

from the transverse, sinuous subapical groove to the base, the flattened space (except along the smooth

median line) closely, coarsely, irregularly punctate, the rest of the surface exterior to it very finely and

sparsely punctured, the punctuation becoming coarser and closer again along the outer margin and

flanks. Scutellum rather large, flat, smooth. LElytra moderately long, slightly wider than the pro-

thorax, subparallel, flattened ; punctate-striate, the interstices flat, those on the disc broader than the

strie, minutely uniseriate-punctate.

Length 3-34, breadth 1-11 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Five specimens. ‘This is a form of C. thoracicus with the larger punctures on the

flattened central portion of the prothorax reduced in size, confusedly arranged, and

somewhat closely placed; the elytra more finely punctate-striate, with the dorsal

interstices broader than the strie; the rostrum very short and closely punctate.

Amongst the long series of C. thoracicus before me from Central and South America

and the Antilles there is nothing intermediate between these two forms.

56. Cossonus catolethroides, sp. n. (‘I'ab. III. figg. 26, 26 a.)

Elongate, depressed, shining, nigro-piceous, the sides of the elytra indeterminately, the apical half of the

rostrum, the antenne (the club excepted), and tarsi rufescent. Head very sparsely punctate, foveate

between the prominent eyes, the globose basal portion separated from the rest by a transverse groove ;

rostrum feebly curved, cylindrical, about two-thirds the length of the prothorax, very sparsely, finely

punctate; antennal club large. Prothorax nearly as long as broad, gradually narrowing from a little

before the base to the short tubulate apical portion, the base feebly bisinuate; rather sparsely, irregularly

72 RHYNCHOPHORA.

punctate, the disc slightly depressed down the middle posteriorly. Scutellum large, flat, rounded, finely

alutaceous, impunctate. Elytra broadly flattened, much wider than the prothorax, subparallel in their

basal half and rapidly narrowing thence to the apex, the apices conjointly rounded; shallowly crenato-

suleate, the punctures not very coarse and somewhat distant one from another, the interstices feebly

transversely rugulose, almost flat and broader than the sulci on the disc, convex at the sides and apex.

Beneath sparsely, finely punctate; metasternum transversely depressed posteriorly and with a fine

median groove; ventral segments 1 and 2 broadly depressed down the middle; tarsal claws small.

Length 33, breadth 1,4, millim. (<¢.)

Hab. Guatema.a, Purula in Vera Paz (Champion).

One male. The elytra in this insect are coloured very much as in Catolethrus

longulus. It has a rather long, cylindrical rostrum, an almost unimpressed prothorax,

a large scutellum, small tarsal claws, &c., and may have to be removed from the genus

Cossonus.

57. Cossonus convexirostris, sp. n. (Tab. III. figg. 27, 27 a.)

Moderately elongate, depressed, shining, nigro-piceous or black, the antenns (the fuscous club excepted),

tarsi, and sometimes the tibie and the tip of the rostrum also, ferruginous. Head longitudinally foveate

and coarsely punctured between the eyes, the globose basal portion almost smooth, the eyes depressed ;

rostrum short, moderately stout, parallel-sided, convex, sparsely punctate, the apical half smoother, the

antenne inserted at the middle. Prothorax a little broader than long, feebly bisinuate at the base, very

gradually and obliquely narrowing from about the basal third or fourth to the shallow subapical

constriction ; coarsely, closely, unequally punctate, except along the narrow, smooth, more or less

cariniform space extending down the middle posteriorly, the basal depression very shallow and sub-

triangular. Scutellum small, transverse. Elytra slightly wider than the prothorax, moderately long,

parallel; coarsely crenate-striate, the interstices narrow, raised, and each with a row of scattered minute

punctures. Beneath coarsely punctate ;. first ventral segment excavate down the middle in the ¢.

Length 3-44, breadth 1-1} millim.

Hab. Mexico, Jalapa (Hége), Toxpem (Sallé); GuaTEmMaLa, Zapote and Duefias

(Champion).

Found in numbers in Guatemala, in the vicinity of the Volcan de Fuego. This

species has the rostrum formed much as in C. hudbardi, Schwarz, and C. latus, Boh., 2 ,

differing from the former in its less coarsely sculptured surface, and from the latter in

its much smaller size, the very shallow basal fovea of the prothorax, &c. Two of the

males from Zapote are larger and more robust than the rest and have the head very

coarsely punctured between the eyes. C. puncticollis, Boh. (nec Woll.) (anted, p. 46),

may be an allied form. C. hubbardi lives in the rotting trunks of the giant Cactus

(Cereus giganteus) in Arizona *.

58. Cossonus spathula, (Tab. III. figg. 28, 28 a.)

Cossonus spathula, Boh. in Schénh. Gen. Cure. iv. p. 10351; Faust, Stett. ent. Zeit. 1896, p. 133°.

Hab. Mexico, Tapachula in Chiapas (Hége), Temax in N. Yucatan (Gaumer);

British Honpuras, Belize (Blancaneaux); Panama (coll. Fry).—Vunezvena, San Este-

ban’; Brazit, Goyas (Mus. Brit.); Antitues, Cuba}, Jamaica, Grenada (I. H. Smith).

* Cf. Psyche, 1899, Suppl. pp. 1-14.

COSSONUS.-—-RHYNCOLUS. 73.

Found in numbers by Hoge at Tapachula, in the Pacific-coast region, and apparently

a common insect in the island of Grenada. The nearest allies of this remarkable

species are C. abscissus and C. torridus, Boh., from Caffraria and Senegal respectively.

Sect. RHYNCOLIDEs.

Rhyncolini, Leconte.

Under this section are placed the various genera resembling Hylastes (one of which,

Tomolips, has a 5-jointed funiculus), Macrancyloides, and Rhyncolus; but the Central-

American representatives of the latter are doubtfully congeneric with the type, an

insect attacking Conifers.

| RHYNCOLUS.

Rhyncolus, Germar, Ins. Spec. nov. p. 307 (1824); Schénherr, Gen. Cure. iv. p. 1056 ; Wollaston,

Trans. Ent. Soc. Lond. 1873, pp. 439, 498, 585, 645; Horn, Proc. Am. Phil. Soc. xill.

pp. 486, 444; Leconte, op. cit. xv. p. 341.

The various American species referred to this genus, the type of which is the

Palearctic R. ater, L. (=chloropus, F.), require a thorough revision. Of the three

Central-American forms here provisionally included in it, R. elumdis, Boh. (=fusi-

formis, Woll.), and the insects described below under the names £&. chiriquensis and

R. montivagus, would perhaps be better placed in Stenancylus, Casey *, their more

approximate anterior coxe notwithstanding 7; the fourth, &. lauri, Gyll., is unknown

tome. These very small, narrow, elongate forms approach Macrancylus, Lec. (Haloxenus,

Perkins) ¢, and Rhamphocolus, Casey, both of which have a basally widened rostrum, &c.

R. protractus, Horn, a species found under oak-bark in California, incorrectly referred

to Macrorhyncolus, Woll., by Leconte, is also not unlike A. e/umées and Stenancylus

‘colombui.

1. Rhyncolus elumbis. (Tab. III. fig. 29.)

Rhyncolus elumbis, Boh. in Schénh. Gen. Cure. iv. p. 1062.

Rhyncolus fusiformis, Woll. Trans. Ent. Soc. Lond. 1873, p. 647°.

Hab. Mexico, Jalapa (Hoge), Motzorongo (Flohr), Teapa (H. H. Smith); GuatEma.a,

Senahu and San Juan in Alta Vera Paz, Las Mercedes, El Reposo, El Tumbador,

Cerro Zunil (Champion), Cacao near Trece Aguas (Schwarz & barber, in UWS. Nat.

Mus.).—Cotomsia, Remedios!; Brazit, Bahia and Rio Janeiro?; Cuba, Cayamas

(Schwarz, in U.S. Nat. Mus.); Grenapa (Mus. Brit.).

* Ann. New York Acad. Sci. vi. p. 693 (1892). Type, S. colomboi, Casey. Specimens of this species from

Cayamas, Cuba, and Jamaica have been sent me by the U.S. Nat. Mus. for determination, with co-types from

Jupiter and Biscayne Bay, Florida, Mr. H. H. Smith has also taken it in St. Vincent.

+ A variable character in Pentarthrum.

+ M. linearis, Lec. (=H. immigrans, Perk.), lives on the sea-shore ; it occurs in Florida, the West Indies

(Mustique I., Grenadines, and Grenada), and the Hawaiian Is. Hutornus littoralis, Broun, from New Zealand,

is a very similar form.

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 7, December 1909. LL

74 RHYNCHOPHORA.

The numerous specimens identified as this species vary greatly in size and colour,

and to a certain extent in the intensity of the punctuation of the prothorax and

elytra ; but they are always smoother than Stenancylus colombot, Casey (which appears

to be constantly ferruginous or rufo-piceous), and have the anterior cox more

approximate. Both these insects have prominent eyes, the rostrum not widened

towards the base, and the elytra narrowly explanate and separately rounded at the

apex. The Central-American examples of R. elumbis, about half of which are from

Trece Aguas, are sometimes wholly or partly black: two of them (from El Reposo and

Las Mercedes) are more elongate than the rest and have (as described by Boheman)

the elytra very little wider than the prothorax at the base; two others (from Senahu

and Trece Aguas) want the subapical prothoracic constrietion. The length (includ.

rostr.) varies from 2-22 mm. Wollaston’s types of R. fusiformis (five from Brazil)

are larger than those obtained from within our limits. Boheman compares his

R. elumbis with Rhizophagus bipustulatus.

2. Rhyncolus chiriquensis, sp. n. (Tab. III. fig. 30, ¢ .)

Elongate, narrow, rather convex, subfusiform, shining, piceous. Head closely punctate, the globose basal

portion almost smooth, the eyes rounded, prominent, and coarsely facetted ; rostrum broad, short, about

as long as the exposed portion of the head, distinctly widened above the points of insertion of the

antenne (appearing a little narrowed at the base). Prothorax considerably longer than broad, subovate,

strongly constricted near the apex, truncate and feebly margined at the base; closely, finely punctate,

except along a narrow, incomplete, alutaceous median line. Scutellum very small, narrow. Elytra

moderately long, less than twice the length of, and about the same width as, the prothorax, produced,

separately rounded, and narrowly explanate at the apex; shallowly punctate-striate, the punctures

becoming very fine towards the sides and apex, the interstices flat, finely alutaceous, and obsoletely

uniseriate-punctate. Beneath somewhat closely punctate; first ventral segment transversely depressed

at about the middle. Anterior cox narrowly separated. Tibis sharply mucronate at the inner apical

angle. ‘Tarsi rather stout, the third joint feebly bilobed.

Length 32, breadth # millim. (¢.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Larger, longer, and more convex than &. elumbis, with the smoother

globose portion of the head more distinctly separated from the anterior portion, the

rostrum a little longer, the prothorax longer than broad, oblong-oval (not conico-

cylindric), and strongly constricted in front, the tarsi stouter.

3. Rhyncolus montivagus, sp. n.

Hlongate, subfusiform, piceous, shining. Head finely, rather sparsely punctate, the globose basal portion

almost smooth, the eyes prominent ; rostrum broad, very little longer than wide, slightly tumid above

the points of insertion of the antenne, finely punctate. Prothorax a little longer than broad, subovate,

feebly constricted near the apex, closely punctate. Elytra considerably wider than the prothorax,

moderately long, produced at the apex; rather coarsely punctate-striate throughout, the interstices

convex, obsoletely uniseriate-punctate.

Length 33-33, breadth 3-8 millim.

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

RHYNCOLUS.—MACRANCYLOIDES. 75

Three specimens, found under bark in the bamboo-thickets on the Pacific slope of

the Volcan de Chiriqui, at the highest elevation reached by the present writer. A close

ally of R. chiriquensis, but differing from it in having the rostrum slightly broader at

the base, the head more sparsely punctured between the eyes, the prothorax less

elongate and feebly constricted near the apex, and the elytra relatively broader, more

deeply punctate-striate, and with the interstices convex.

4. Rhyncolus lauri.

Rhyncolus lauri, Gyll. in Schénh. Gen. Cure. iv. p. 1076".

Hab. Mexico },

Found in seeds of “ Laurus” *. The type of this insect cannot now be found in the

Stockholm Museum. It is a small narrow form, and probably not a true Rhyncolus.

Gyllenhal compares #. lauri with his &. oryze, an introduced insect found in grains

of rice at Stockholm, and equally unknown to me.

MACRANCYLOIDES, gen. nov.

Rostram very short and stout, about as long as broad, parallel-sided, unimpressed and almost continuous with

the vertex above, the scrobes extending backward to the anterior limit of the eyes and then abruptly

running downward; eyes very large, depressed, placed low down at the sides of the head and almost

hidden from above ; antennz with a closely articulated 7-jointed funiculus and a small ovate club ;

prothorax cylindrical, truncate at the base and apex, unimpressed; scutellum minute, transverse; ely tra

very long and cylindrical, of the same width as the base of the prothorax, conjointly rounded and not,

explanate at the apex; anterior coxe narrowly separated; metasternum nearly as long as ventral

segments 1 and 2 united; tarsi slender, the third joint sub-bilobed, the claws free ; body very elongate,

flattened-cy lindrical.

Type, M. perlongus.

The type of this genus is a very elongate, cylindrical insect resembling Macrancylus,

from which it differs in having the rostrum parallel-sided (¢. e. not widened basally),

the eyes larger and placed lower down at the sides of the head, and the anterior coxve

narrowly separated. Macrancylus and Stenancylus would be almost as well placed

amongst the “* Rhyncolini.”

1. Macrancyloides perlongus, sp.n. (Tab. III. figg. 31, 31a, 0.)

Black, the antenne and tarsi piceous, shining, finely alutaceous, subglabrous. Head and rostrum finely,

closely punctate, the head transversely strigose beneath. Prothorax as long as broad, very gradually

narrowing from the base, the sides straight, the subapical constriction faintly indicated ; closely punctate,

except along the narrow median line, longitudinally strigose at the sides (fig. 316). Elytra more than

twice the length of the prothorax, parallel-sided ; punctate-striate, the interstices feebly convex, finely

uniseriate-punctate. Beneath closely punctate, the first ventral segment unimpressed.

Length 43, breadth 1 millim. (9 ?)

Hab. GuatEmaa, Cacao near Trece Aguas, Alta Vera Paz (Schwarz and Barber, in

U.S. Nat. Mus.).

* ? Persea sp.

LL 2

76 RHYNCHOPHORA.

One example. Larger and a little less convex than Macrancylus linearis, the body

black, the prothorax longitudinally strigose at the sides. The raised transverse lines

on the gula and under surface of the head look as if they could be used for stridulating

purposes.

DENDROCTONOMORPHUS.

Dendroctonomorphus, Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 440, 502, 591, 649.

Wollaston referred two species to this genus—one from Ceylon (the type), the other

from Mexico; and the N.-American Rhyncolus brevis, Boh., placed somewhat doubt-

fully in Stenoscelis by Horn, would probably be best included here. The 7-jointed

funiculus distinguishes Dendroctonomorphus from Hexarthrum. The antennal club is

rounded and abrupt and the scutellum minute.

1. Dendroctonomorphus parallelus. (Tab. III. figg. 32, 32 a.)

Dendroctonomorphus parallelus, Woll. Trans. Ent. Soc. Lond. 1873, p. 649°.

flab. Mexico (Trugui, in coll. Fry 1).

No definite locality is known for this insect. There are two specimens of it in the

Fry collection at the British Museum. JD. parallelus is narrower than D. brevis (Boh.),

and has a longer and more coarsely punctured prothorax, and more distinctly asperate

elytra.

OOCORYNUS, gen. nov.

Rostrum very short, broad, subtriangular, almost continuous with the vertex above, sulcate at the base, the

scrobes obliquely and rapidly descending to the lower limit of the eyes, the latter finely facetted, large,

strongly transverse, depressed, and placed low down at the sides of the large, globose head ; antenne

with a closely-articulated, 7-jointed funiculus, and an abrupt, short-ovate, pubescent club, the basal

joint of which forms about half of the entire mass; prothorax subcylindrical, truncate at the base and

apex ; scutellum very small, transverse, depressed; elytra long, cylindrical; anterior coxe narrowly

separated ; metasternum considerably longer than the first ventral segment; legs rather slender, short,

the tarsi narrow and with the third joint simple, the claws free; body narrow, elongate, flattened-

cylindrical, coarsely sculptured above.

Type, O. corrosus.

This genus must be placed near Dendroctonomorphus, Brachytemnus, and Calyciforus

(Wollaston’s group V. pp. q.), from all of which it differs in the position of the eyes,

these being placed so low down that they are almost entirely hidden from above. The

elytral sculpture, too, is peculiar, the rostrum is sulcate down the basal half, and the

body is flattened.

1. Qocorynus corrosus, sp. n. (Tab. IIL. figg. 33, 33 a.)

Subopaque above, alutaceous beneath, black, the tarsi and autenne fusco-ferruginous, clothed with a few,

very minute, hair-like scales. Head and rostrum densely punctate, the basal half of the latter somewhat

convex and sharply sulcate down the middle. Prothorax as long as broad, very little narrowed in front,

OOCORYNUS.—CALYCIFORUS. 17

and without definite subapical constriction ; coarsely, densely punctate. Elytra at the base slightly

wider than the prothorax, conjointly rounded and narrowly explanate at the apex, the humeri subangular

in front; with rows of coarse, subquadrate, closely-placed punctures, separated by very narrow, raised,

uniseriate-punctate, subasperate interstices. Beneath closely, moderately coarsely punctate ; first ventral

segment depressed down the middle in the ¢.

Length (includ. rostr.) 33-34, breadth 1 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Six specimens. Compared with Calyciforus inequalis, this is a longer and less

convex insect.

CALYCIFORUS.

Calyciforus, Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 440, 503, 592, 650.

Wollaston referred two species to Calyciforus, both from Brazil, one of which enters

within our limits. He was in some doubt as to whether his C. erosus was not the

female of C. excavatus, but this is not likely to be the case. The Mexican and

Guatemalan form now added approaches C. erosus, but it has the elytral sulci differently

sculptured. The antenne in this genus have a closely articulated, 7-jointed funiculus,

and a broad, strongly transverse, truncated club.

1. Calyciforus excavatus. (Tab. III. figg 34, 34a, 3.)

Calyciforus excavatus, Woll. Trans. Ent. Soc. Lond. 1873, p. 650°.

Hab, Panama, Chiriqui (7bde).—Trinipap (Mus. Brit.); Brazi,, Santa Catharina

and Bahia !.

One specimen, agreeing with the numerous others from Brazil in the Fry collection.

2. Calyciforus inequalis, sp. n. (Tab. IIL. fig. 35.)

Elongate, cylindrical, convex, moderately shining, black, the antenne, tibial claws, and tarsi testaceous,

clothed with a few minute, scattered hairs. Head and rostrum closely, finely punctate, the head

shallowly foveate between the eyes. Prothorax very coarsely, closely punctate, sometimes with a

smooth abbreviated median line, the base with or without a shallow depression in the middle. Elytra

deeply sulcate, the sulci more or less distinctly crenate-punctate, the interstices raised, convex, each with

a row of asperate punctures, the humeri in some specimens ( ¢'?) angulate in front.

Length (includ. rostr.) 34-32, breadth 1;45-14 millim.

Hab. Mexico (Mus. Brit.), Jalapa (Hoge); Guatemaua (Sallé), San Joaquin in Alta

Vera Paz (Champion).

Four specimens, varying considerably in the sculpture of the elytra, those with

angular humeri assumed (as in the genus Tomolips) to be males. Wollaston describes

the elytral sulci as transversely strigose in the two species named by him, whereas in

the present insect the sulci are distinctly crenate-punctate.

78 RHYNCHOPHORA.

TOMOLIPS.

Wollastonia, Horn, Proc. Am. Phil. Soc. xiii. p. 433 (Sept. 19th, 1873) ; Leconte, Proc. Am. Phil.

Soc. xv. p. 841 (1876) (nec Heer, 1852).

Tomolips, Wollaston, Trans. Ent. Soc. Lond. 1878, pp. 439, 501, 590, 648; Champion, Ent.

Monthly Mag. xlv. p. 104 (1909).

A remarkable genus, the species of which superficially resemble Hylastes and other

genera of Scolytide. The 5-jointed funiculus distinguishes it at once from Calyciforus.

The two forms here recognized may be separated thus :—

Anterior tibize with a compressed bifid tooth at the inner apical angle in ¢;

serlate punctures on elytra closely placed. . . . . . . . . . . bicalcaratus, Woll.

Anterior tibiz simply mucronate at the inner apical angle in both sexes;

seriate punctures on elytra somewhat scattered: . . . . . . . « quercicola, Boh.

1. Tomolips bicalcaratus. (Tab. III. figg. 36, 36a, 3; 37, 2.)

3d. Tomolips bicalcaratus, Woll. Trans. Ent. Soc. Lond. 1878, p. 648".

?. Tomolips asperatus, Woll. loc. cit. p. 649 *.

Hab. Mexico (Truqui1?: 3 2), Sacramonte near Amecameca in Morelos (Herrera,

in U.S. Nat. Mus.: 2 ).

I have seen two specimens of T. dicalcaratus and three of 7’. asperatus, the latter

having the prothorax relatively shorter, the elytral humeri subquadrate in front, and

the sculpture of the entire upper surface less coarsely punctate than in 7" bicalcaratus,

differences no doubt sexual, like that observable in the armature of the anterior tibie.

The elytral interstices are conspicuously uniseriate-punctate, and towards the sides and

apex are set with minute raised points.

2. Tomolips quercicola.

Rhyncolus quercicolus, Boh. in Schénh. Gen. Cure. viii. 2, p. 281°.

Wollastonia quercicola, Horn, Proc. Am. Phil. Soe. xv. p. 4347.

Tomolips quercicola, Champ. Ent. Monthly Mag. xlv. p. 104°.

Hab. Norta America, North! and South Carolina, Louisiana 2, and Georgia 2,

Columbus in Texas.—GuatemaLa, Volcan de Fuego (Salvin), Santa Cruz near San

Geronimo, Capetillo (Champion).

Extremely like 7. bicalcaratus, but separable from it by the simple mucronate

anterior tibie in the male. The sculpture is somewhat variable in both species. The

five specimens obtained in Guatemala agree very nearly with two others before me

from Texas.

DYNAMIS. 79

Subfam. CALANDRINA.

Since the issue of the seventh volume of Lacordaire’s ‘Genera des Coléoptéres’

(1866) but little work has been done at exotic Calandrids beyond Chevrolat’s

attempted revision of them, published in part in 1882, and completed, posthumously,

by Jekel and Sallé, in 1885. Horn and Leconte, however, in 1873-76, eliminated

from the old genus Sphenophorus a few forms from the Southern United States (one

certainly introduced from warmer climes), under the names Cactophagus, Metamasius,

and Rhodobenus; and though these authors placed only one or two species in each of

the above-mentioned genera, the latter are now known to include most of the spotted

or maculate Tropical American Sphenophorina, Sphenophorus, sensu stricto, becoming

less numerous southward. ‘The species in many cases, owing to their greasy nature

and their extremely variable colour, are often very difficult to determine till they are

thoroughly cleaned and the sexual characters studied. ‘The males in certain members

of the genera Cactophagus and Metamasius have either the rostrum sulcate and

crenate beneath, or the anterior or posterior tibiz strongly ciliate, or the posterior

tibie penicillate, &c.; and the females (especially in hodobenus) often have a

dentiform prominence on the peduncle of the submentum in front. In Homalostylus

the antennal scape is broad and flattened in one or both sexes.

The subfamily Calandrine is very largely represented in the tropics of both the

Old and the New World.

. Group RHYNCHOPHORINA.

Rhynchophorides, Lacordaire.

DYNAMIS.

Dynamis, Chevrolat, Ann. Soc. Ent. Fr. 1882, p. 563.

Chevrolat includes four Tropical American species under this genus, the type of

which will be Calandra borassi, F.*. These insects have the median lobe of the

prothorax more produced than in Rhynchophorus, thus shortening the scutellum,

which is also much less extended behind and comparatively small and narrow; the

rostrum thick and compressed to the tip, which is dilated, and the crest of erect hairs

is wanting in the male.

* D. (Rhynchophorus) politus, Gyll., described from the female sex only, may prove to be wrongly placed

in Dynamis. Amongst a series of twenty Rhynchophori before me from St. Vincent, W.I., two are

R. palmarum (2), and the rest (d 2) are extremely like that species, except that they have the upper

surface shining (instead of velvety and opaque); these latter may belong to Gyllenhal’s species, which is

described as having the rostrum attenuate and not reflexed at the apex, and the surface shining. There are

similar specimens from Trinidad and Cayenne mixed with the series of R. palmarum in the British Museum.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, Aprid 1910. MM

80 RHYNCHOPHORA.

1. Dynamis germari.

Calandra germari, Perty, Del. Anim. art. Bras. p. 82, t. 16. fig. 12°.

Dynamis germari, Chevr. Ann. Soc. Ent. Fr. 1882, p. 563’.

Rhynchophorus noxius, Gyll. in Schénh. Gen. Cure. iv. p. 821°; vill. 2, p. 216%.

Black, subopaque or feebly shining, alutaceous. Rostrum a little shorter than the prothorax, feebly curved,

strongly compressed and of almost equal thickness (as seen in profile) to the tip, in both sexes dilated at

the apex (as seen from above) and very finely punctate. Prothorax gradually narrowing from the base,

the median lobe strongly, arcuately produced ; the surface impressed with scattered very minute punctures,

the interspaces excessively minutely punctate, the disc with indications of a smoother median line.

Scutellum small, the long apical portion very narrow and lanciform. LElytra each with five deep sulci,

the fourth and fifth confluent at the apex, the outer strie almost obsolete and represented by four

sinuous lines of fine punctures, which are scarcely coarser than those scattered along the interstices, the

dorsal interstices convex, the others flat. Ventral depression of the ¢ very shallow. Femora and tibiw

densely fringed with long matted blackish-brown hairs in the d, in the Q with shorter and fewer hairs.

Length 29-82, breadth 114-123 millim. (¢ Q.) .

Hab. Panama, Bugaba (Champion).—Sovurn AMERicA, Cayenne, Brazil? 4.

A single female specimen from Bugaba is referred to this species, originally

described from an introduced example of the same sex found at Boston!. ‘There is

a short series of the same species, including both sexes, from Brazil, in the Fry

collection at the British Museum, and the above description is supplemented from

these insects.

2. Dynamis peropacus, sp.n. (Tab. IV. figg. 1, ¢; 2, 2.)

Black, opaque and strongly pruinose above, shining beneath. Rostrum a little shorter than the prothorax,

_feebly curved, strongly compressed and of almost equal thickness (as seen in profile) to the tip, in both

sexes dilated at the apex (as seen from above), and very finely, sparsely punctate. Prothorax gradually

narrowing from the base, the median lobe broadly, arcuately produced, the surface with minute scattered

punctures. Scutellum small, oblong-triangular, and with a smooth lanciform median ridge. Llytra

each with five narrow, moderately deep sulci, the fourth and fifth not confluent at the apex, the outer

strie almost obsolete and represented by four sinuous lines of very fine punctures, the dorsal interstices

flat at the base and becoming feebly convex towards the apex. First ventral segment hollowed down

the middle anteriorly in both sexes. Femora and tibie densely fringed with long matted blackish-brown

hairs in the ¢, the hairs shorter in the @,

Length 32-36, breadth 133-15 millim. (¢ @.)

Hab. Nicaracua, Chontales (Aichardson).

Two males and one female. Extremely like Rhynchophorus palmarum, but with

a very much stouter, compressed, apically dilated rostrum, which is not cristate in the

male, a longer median lobe to the prothorax, and a much smaller scutellum. The

velvety-black opaque upper surface, the broader scutellum, and the narrower elytral

sulci (the fourth and fifth of which are not coalescent at the apex) separated by flatter

interstices, sufficiently distinguish D. peropacus from D. germari. It seems curious

that this species was not obtained by either Belt or Janson at Chontales.

RHYNCHOPHORWS. 81

RHYNCHOPHORUS.

Rhynchophorus, Herbst, Kafer, vi. p. 8 (1795) ; Schénherr, Gen. Cure. iv. p. 816 ; Lacordaire,

Gen. Col. vii. p. 275 ; Horn, Proc. Am. Phil. Soc. xiii. p. 408 ; Chevrolat, Ann. Soc, Ent.

Fr. 1882, p. 560.

_Chevrolat excluded from this genus the Tropical American forms allied to

R. borassi, F., all of which have the rostrum very stout, more or less dilated at

the tip, and non-cristate in the male, and the scutellum small. A&. palmarum,

therefore, is the only true Rhynchophorus at present known from within our limits,

though it is possible that 2. cruentatus, F. (= zimmermanni, Fahr.) *, of the Southern

and Gulf States, may be found to extend southward into Mexico and Guatemala.

All the species attack palms: the North-American insect (according to S. V. Sum-

mers f) bores into the roots and stocks of the “palmetto,” and £. palmarum lives

upon *‘ Cocos,” &c.

1. Rhynchophorus palmarum. (Tab. IV. figg. 3, 3; 4, 2.)

Curculio palmarum, Linn. Mus. Lud. Ulr. p. 42 (1772)*; Oliv. Ent. v. no. 88, p. 77, t. 2.

figg. 16a (3), (¢)”.

Rhynchophorus palmarum, Gyll. in Schonh. Gen. Cure. iv. p. 820°; Lec. Proc. Am. Phil. Soc. xv.

p- 424 (1876) *; Chevr. Ann. Soc. Ent. Fr. 1882, p. 561°; Lec. & Horn, Class. Col. N. Am.,

2nd edit. p. 506 (1883) °; Blandf. Kew Bulletin, 1893, pp. 27-60, t. 1 (larva, &c.)’.

Rhynchophorus lanuginosus, Chevr. Le Nat. il. no. 39, p. 315 (Nov. 1880) ( 3)’.

Rhynchophorus depressus, Chevr. loc, cit. (¢) °.

Hab. Nortu America, Southern Calitornia ® west of San Diego 4.—Mexico; Britis

Honpuras; GuatTeMALA; Honpuras, Ruatan I.; Nicaraeua; Costa Rica; PAaNaMa.—

Souta America ! 6 to Brazil?; ANTILLES 4, Guadeloupe °°, St. Vincent.

An abundant insect throughout the warmer parts of America. Amongst the various

allied forms, the present species may be known by its opaque, velvety-black upper

surface, and the somewhat tapering rostrum, which in the male is mesially depressed

and furnished with a dense brush of blackish or fulvous erect hairs.

R. lanuginosus, Chevr., is no doubt based upon a large male, and &. depressus,

Chevr., upon a small female, of R. palmarum, greasy specimens of which have a very

different appearance from those in clean condition.

The length varies from 23-38 mm.

* There is a specimen of this species, which varies greatly in colour, in the Sharp collection, labelled

‘Guatemala, Mus. Turner,” but the locality requires confirmation.

+ Canad. Ent. v. pp. 123, 124 (1873).

MM 2

82 RHYNCHOPHORA.

Group SPHENOPHORINA.

CACTOPHAGUS. ©

Cactophagus, Leconte, Proc. Am. Phil. Soc. xv. p. 331 (1876) ; Chevrolat, Ann. Soc. Ent. Fr.

1882, p. 579 (part.); Casey, Ann. N. York Acad. Sci. vi. p. 684 (1892).

The type of this genus is Sphenophorus validus, Lec. (= spinole, Gyll., var.), and it

will also include numerous Tropical American forms, such as S. sterrakowskyi, Gyll.,

S. tibialis, Waterh., S. pulcherrimus, Chevr., &c. Its principal characters are the

stout cylindrical rostrum; the deeply channelled peduncle of the submentum * (the

sides being thus raised anteriorly into two vertical lamelle which are rounded at the

ends); the narrowly separated anterior, and widely separated intermediate, coxe ;

the broad, flattened, antero-intercoxal process of the metasternum, which is bisinuate

in front; the unarmed femora; the rounded, unarmed, outer apical angle of the tibie ;

and the very large third tarsal joint, which is spongy-pubescent beneath. Amongst

the fourteen species referred to Cactophagus by Chevrolat, eight only belong to it as

here understood. Most of them have the prothorax or elytra spotted or banded with

red, and the anterior or posterior tibie are often strongly ciliate or penicillate within,

and the fifth ventral segment furnished with a cluster of long erect hairs in the males.

The colour is variable in some cases, as in Rhynchophorus, Metamasius, Phyllery-

thrurus, and a few other genera of the group Sphenophorina. Some of the species

of the present genus are recorded as attacking Cereus or Opuntia.

The Central-American species may be separated thus :—

a. Anterior tibiz densely fringed with long or moderately long hairs in ¢,

the fifth ventral segment without cluster of erect hairs in this sex.

a’. Seriate punctures on the elytra coarse and foveiform.

a’. Elytra with two red fascie. . . . . . . ee ee ee 6 fahrei, Gyll.

b’. Hlytraimmaculate . . . . 2. . ee ee ee .) Striatoforatus, Gyll.

b’. Seriate punctures on the elytra finer.

ce’. Prothorax almost smooth.

a’. Elytra with two red fascie . . . 2 . . 1. . ee ee ) Spinole, Gyll.

b*. Elytraimmaculate . . . . . 1... ew we ee. Spinola, Gyll., v. vali-

d*. Prothorax closely punctured ; elytra with two transverse curved [dus, Lec.

lines of small scattered red spots on the disc, often obsolete . . validirostris, Gyll.

6. Posterior tibie densely fringed with long, and the other tibize with

shorter, hairs in ¢, the fifth ventral segment without cluster of long

hairs in this sex ; prothorax with a broad stripe on each side, and the

elytra with two interrupted fascia, red, these markings sometimes

obsolete. 2. 2... we ee ee eee ee) Céliatus, sp. 0.

* The gular peduncle of Leconte is termed the peduncle of the submentum by Lacordaire.

CACTOPHAGUS. 83

c. Posterior tibie penicillate and the other tibiz sinuate and ciliate in g,

the fifth ventral segment with a cluster of long erect hairs in this sex.

c’. Prothorax and elytra each with an interrupted red fascia, the pro-

thorax with a deep coarsely punctured depression . . . . . rufocinctus, sp. n.

d’. Prothorax with an oblique stripe on each side, and the elytra with

an oblique median fascia, red, the prothorax with a shallow depres-

sion at the base. . . . . woe eee . rufomaculatus, sp. 0.

. Prothorax and elytra variegated with red, ‘the prothorax parallel.

sided at the base and with a shallow basal depression . . . . . cirratus, sp. n.

d. All the tibize fringed with short hairs within in both sexes.

f'. Fifth ventral segment with a dense cluster of erect hairs in ¢; pro-

thorax and elytra red, spotted or variegated with black: size large. sierrakowskyi, Gyll.

g'. Fifth ventral segment without cluster of hairs in ¢; prothorax and

elytra each with a rufous or orange fascia; rostrum comparatively

short : size smaller, body less elongate . . . . . . . . . . pulcherrimus, Chevr.

1. Cactophagus fahrei. (Tab. IV. figg. 5, 5a, 3.)

Sphenophorus fahrei, Gyll. in Schéuh. Gen. Cure. iv. p. 884".

Cactophagus fahrei, Chevr. Ann. Soc. Ent. Fr. 1882, p. 579°.

g. Anterior tibie densely fringed with rather long hairs; ventral excavation shallow.

Hab. Mexico, between Oaxaca and Acapulco! (Jus. Holm.), Acapulco, Oaxaca

(Hoge), Capulalpam (Sallé), Mochitlan in Guerrero (Baron).

Sent us in profusion from Oaxaca by the late F. Hoge, the specimens showing no

sign of variation in the colour of the elytra. The two red fasciz are each formed by a

transverse series of somewhat tumid, shining, oblong, coalescent spots, these being

much more prominent than in C. spinole. ‘The striz are impressed with scattered

oblong deep fovez, except in the space occupied by the tumid red spots, where the

impressions are smaller. The prothorax is usually of a dark rufo-piceous tint. The

length varies from 16-25 mm.

The following is probably nothing more than an immaculate form of the same

species.

2. Cactophagus striatoforatus.

Sphenophorus striatoforatus, Gyll. in Schénh. Gen. Cure. iv. p. 878°.

Cactophagus striatoforatus, Chevr. Ann. Soc. Ent. Fr. 1882, p. 580°.

Sphenophorus perforatus, Fahr, in Schénh. Gen. Cure. viii. 2, p. 236°.

J. Anterior tibize densely fringed with moderately long hairs; ventral excavation rather deep.

Hab. Mexico, Orizaba (Sallé), Jalapa, Mexico city (Hoge) ; Guatemata, El Rancho

(Deam, in U.S. Nat. Mus.) ; Satvavor, Izaleo (nad, in U.S. Nat. Mus.); Costa Rica

(Pittier, Van Patten, Sallé), Azahar de Cartago (Underwood), San José (Biolley),

Piedras Negras (U.S. Nat. Mus.).—Cotomsia }~* ; Trintpap (coll. £ry).

84 RHYNCHOPHORA.

Sent in numbers from Costa Rica. It lives in a species of Cereus, according to

Biolley, and there is an example from Colombia in the Fry collection labelled as

having been found on the same genus of Cactacez. ‘This insect is extremely like

the immaculate form of C. spinolew, but may be easily distinguished therefrom by the

deep, oblong, foveiform impressions of the elytral strie. It bears much the same

relation to the Mexican C. fahrwi as the northern C. validus does to C. spinole, and

replaces the former as we go southward.

3. Cactophagus spinole. (Tab. IV. figg. 6, 6a, 9; 7, 7a, ¢, var.).

Sphenophorus spinole, Gyll. in Schénh. Gen. Cure. iv. p. 883’; Dugés, La Naturaleza, v. p. 121,

t. 3. figg. 5, 5 a—m (1881) *; Ann. Soc. Ent. Belg. xxx. pp. 31-33, 44, t. 2. figg. 1-10 (1886) °.

Cactophagus spinole, Chevr. Ann. Soc. Ent. Fr. 1882, p. 579 *.

Calandra bifasciata, Sturm, Cat. p. 227 (1843) ° (nec Gyll.).

a, Prothorax with an oblique patch on each side near the apex (in one example from Ventanas extending

downwards to the hind angles and in one from Mexico city wanting), the elytra with two narrow

transverse fascize (the anterior one somewhat curved or oblique, and neither reaching the suture), and

the metasternum usually with a patch on each side, sanguineous or ferruginous [spinole, Gyll.].

3g. Anterior tibiz densely fringed with rather long hairs; ventral depression shallow.

Hab. Mexico!~> (Truqui; Mus. Brit.), Hacienda de Bleados in San Luis Potosi

(Dr. Palmer), Durango (Wickham), Ventanas, Durango city, Atlixco, Zapotlan,

Morelia, Mexico city, Chilpancingo, Jalapa (Hége), Mochitlan (Baron), Amula, Puente

de Ixtla, Cuernavaca (H. H. Smith), Guanajuato, Puebla (Dugés, Saillé), Sierra de

Ajusco, Tlalnepantla (Hay, in U.S. Nat. Mus.), Uruapan (Deam, in U.S. Nat. Mus.).

f. The elytral fascize broader, in one specimen (fig. 7) showing a tendency to coalesce along the second and

fourth interstices, the scutellum and pectus also sometimes red.

Cactophagus obliquefasciatus, Chevr. loc. cit. p. 580°.

Hab. Mexico, Puebla® (Sal/é).

y. Above and beneath black or pitchy-black.

Sphenophorus validus, Lec. Proc. Acad. Phil. 1858, p. 80" ; Horn, Proc. Am. Phil. Soc. xiii. p. 415°.

Cactophagus validus, Lec. Proc. Am. Phil. Soc. xv. p. 822°; Chevr. Ann. Soc. Ent. Fr. 1882,

p. 579”; Casey, Ann. N. York Acad. Sci. vi. p. 685". |

Sphenophorus procerus, Lec. Proc. Acad. Phil. 1858, p. 80”.

Sphenopnorus fuliginosus, Chevr. in litt.”.

Cactophagus subnitens, Casey, loc. cit.™*.

Hab. Nortu America, San Diego, California §&-1° 12, Arizona !4.—Mexico 8! (Sallé,

Mus. Brit.), Sonora? 8 (Morrison), Tehuacan in Puebla, Mexico city, Oaxaca (Hége).

An abundant insect in Opuntia’s in Mexico, where the fasciate form is much

commoner than C. validus. The var. obliquefasciatus (the type of which I have seen)

occurs with typical C. spinole at Puebla, these two forms being shown on our Plate.

C. subnitens is based upon smoother and more shining individuals, with the elytral

CACTOPHAGUS. 85

strie rather coarsely punctate towards the base. Similar specimens are also to be

found amongst a series of the typical C. spinole from almost any of the localities

quoted *. The rufous markings vary in development and are often altogether wanting.

The length varies from 14-25 mm. ‘The larva and pupa are figured by Dugés? *.

4, Cactophagus validirostris. (Tab. IV. figg. 8, 8a, ¢.)

Sphenophorus validirostris, Gyll. in Schénh. Gen. Cure. iv. p. 886°.

Cactophagus validirostris, Chevr. Ann. Soc. Ent. Fr. 1882, p. 579°.

Sphenophorus bifasciatus, Gyll. loc. cit. p. 885° (nec Sturm).

3. Rostrum strongly bowed towards the apex, the apical portion somewhat compressed, moderately stout,

becoming almost; smooth towards the tip ; ventral excavation long and broad; anterior coxa often with a

small tubercle on their inner face ; femora and tibie finely ciliate, the anterior tibise with longer hairs.

. Rostrum regularly arcuate, the apical portion more slender, subcylindrical, and much smoother ; femora

almost bare, the tibize with a dense line of very short hairs.

Hab. Mextco!?23 (Mus. Brit.; Flohr), Misantla, Jalapa (Hége), Cordova (Knaé, in

U.S. Nat. Mus.), Tepansacoalco in Oaxaca (Sallé) ; GuaTemMaa, Cerro Zunil, Pantaleon,

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

The thirty specimens of this species before me vary greatly in size, in the length

of the rostrum, the development of the prothorax (it being strongly rounded at the

sides in some examples, and the depression on the disc is sometimes long and

deep, and sometimes shallow), and the number of spots on the elytra, these being

occasionally obsolete. ‘The spots, when present, are arranged in two curved, inter-

rupted, transverse fascie, which become coalescent laterally and divergent towards the

suture. The prothorax is somewhat closely punctate, and there is also a row of fine

punctures down each elytral interstice, as well as a series of coarser impressions along

the strie, all being filled with a brownish or cinereous incrustation. C. validirostris

was founded upon a large example with a deeply excavate prothorax, C. bifasciatus

upon a small specimen with a flatter prothorax. ‘The length varies from 103-17, and

the breadth from 4—6§ mm.

5. Cactophagus ciliatus, sp.n. (Tab. IV. figg. 9, 9a, ¢.)

Elongate-oval, robust, opaque above ; black, the prothorax with a very broad, anteriorly-widened stripe on

each side extending from the subapical groove to near the base, and the elytra with a broad transverse

fascia below the base and a large transverse patch on the disc just beyond the middle (neither reaching

the suture), rufous. Rostrum curved, very stout, much shorter than the prothorax, obsoletely canali-

culate beneath, very sparsely finely punctate, the widened basal portion with an impressed line, that of

the ¢ slightly longer and smoother, the frontal fovea small. Prothorax about as long as broad, depressed

and sparsely punctate down the middle posteriorly, feebly bisinuate at the base. Scutellum elongate-

triangular, flattened, slightly hollowed in front. Elytra much wider than the prothorax, oblong-

subcordate, punctate-striate, the punctures conspicuous and somewhat widely separated, the strie fine,

the interstices feebly convex. Pygidium very coarsely punctured. Beneath sparsely, moderately coarsely

punctate. Anterior and intermediate coxe with a small cluster of hairs. Femora and tibie closely

ciliate in both sexes.

* A similar variation has been noticed by Blaisdell in certain species of the Tenebrionid genus Eleodes

(of. Ent. News, 1910, p. 64).

86 RHYNCHOPHORA.

Var. Entirely black ( ¢ @ ).

$. Ventral excavation long, broad, and shallow, the fifth segment bare and unimpressed at the tip; the tibie

fringed with longer hair than in the 9, that on the posterior pair very long and dense; last dorsal

segment (that covered by the pygidium) also densely fulvo-pilose along the apical margin.

Length 17-23, breadth 7-9 millim. (d @.)

Hab. Mexico (Sallé, Flohr: 3 2), Mexico city (Hége: 3), Temax in N. Yucatan

(Gaumer: 3 2).

Three specimens of the red-banded form and four entirely black, these latter from

Yucatan. The posterior tibiz in this insect are very strongly ciliate in the male.

6. Cactophagus rufocinctus, sp.n. (Tab. IV. figg. 10, 10a, ¢.)

g. Elongate-oval, rather convex, opaque above ; black, the prothorax with a broad, oblique, undulate fascia

on each side at about the middle (the two fascie almost meeting on the disc and extending down the

flanks), and the elytra with a narrower oblique median fascia extending inwards to the suture, rufous.

Rostrum very stout, curved, a little shorter than the prothorax, sparsely, finely punctate, smooth at the

tip, sulcate beneath, the widened basal portion also sharply sulcate above, the groove extending upwards

to the deep, oblong, frontal fovea. Prothorax about as long as broad, rounded at the sides, rapidly

narrowing from the middle to the short, tubulate, punctured anterior portion, the disc strongly depressed

and very coarsely punctate in the centre posteriorly. Scutellum large, broad, triangular, smooth, almost

flat. Elytra wider than the prothorax, rapidly narrowing from the rounded humeri, transversely

depressed at the base; rather coarsely and deeply puuctate-striate, the interstices feebly convex and

almost smooth. Pygidium coarsely punctate, convex, sparsely pilose at the tip. Beneath sparsely,

finely punctate, the ventral depression long and broad, the fifth segment with a large rounded space at

the apex set with long erect fulvous hairs, which show a tendency to form three small scattered tufts

on each side. Femora and tibie ciliate, the tibie sinuate within, the posterior pair with a curved,

matted tuft of longer and coarser hairs at about the middle.

Length 1132, breadth 6, millim.

Hab. Costa Rica, Carrillo (Schaus, in U.S. Nat. Mus.).

One example. This is a form of the Colombian C. éibialis (Waterh.), from which it

differs in the less sinuate tibie of the male and in the general system of coloration.

The prothorax has a very coarsely punctate, deep basal depression.

7. Cactophagus rufomaculatus, sp.n. (Tab. IV. figg. 11, lla, ¢.)

d. Elongate-oval, broad, rather convex, opaque above, somewhat shining and greyish-pruinose beneath ;

black, the prothorax with an oblique stripe on each side, and the elytra with an oblong spot on the

shoulders beneath and an oblique median fascia (nearly reaching the suture), rufous. Rostrum very

stout, curved, about three-fourths the length of the prothorax, sparsely, minutely punctate, smooth at

the tip, sulcate beneath, the basal portion also narrowly, interruptedly sulcate above. Prothorax slightly

broader than long, the sides rounded anteriorly and parallel at the base, the basal depression shallow

and with a few scattered punctures. Scutellum broad, subtriangular, flattened. Elytra oblong-cordate,

deeply and rather coarsely punctate-striate, the interstices feebly convex. Pygidium sparsely punctate,

somewhat fimbriate along the apical margin. Beneath sparsely punctate, the ventral excavation long

and deep, the fifth segment with a large space at the apex set with erect fulvous hairs. Femora and

tibie ciliate, the tibie sinuate within, the posterior pair with a small tuft of longer hairs at about the

middle.

Length 19, breadth 74 millim.

Hab. Panama, Chiriqui (Trdtsch).

CACTOPHAGUS. 87

One male. Very near C. cirratus and C. rufocinctus, but with a smaller tuft of

hairs on the hind tibie (3), the prothorax parallel-sided at the base and with a

shallow, sparsely punctured basal depression, the rufous markings differently shaped.

8. Cactophagus cirratus, sp.n. (Tab. IV. figg. 12, 12a, 3.)

3. Elongate-oval, broad, rather convex, opaque above, somewhat shining and pruinose beneath ; black, the

prothorax in great part (the two large, coalescent spots at the base, the lanciform median spot, and

the short tubulate anterior lobe, black), and the elytra with the base very narrowly and an outwardly-

dilated submedian fascia (these markings connected along the outer margin), rufous. Rostrum very

stout, curved, about two-thirds the length of the prothorax, with a few minute scattered punctures,

smooth at the tip, sulcate beneath, the basal portion also sharply sulcate above to the deep oblong frontal

fovea. Prothorax a little broader than long, rounded at the sides, gradually narrowed to the coarsely-

punctured tubulate anterior portion, bisinuate at the base, the disc excavate and coarsely punctate in

the middle posteriorly and also with a few scattered punctures along the centre. Scutellum elongate-

triangular, somewhat concave. Elytra wider than the prothorax, oblong-cordate ; deeply striate, the

strie with rather fine scattered punctures, the interstices smooth and convex. Pygidium slightly

flattened, sparsely punctate and fulvo-pilose, the hairs tending to form a median crest and a fringe along

the apical margin. Beneath closely punctate, the broad ventral excavation included, the fifth segment

with a large space at the apex set with long erect fulvous hairs. Femora and tibie ciliate, the tibia

sinuate within, the posterior pair with an oblique matted tuft of much longer and coarser hairs at the

middle.

Length 214, breadth 83 millim.

Hab. Nicaracua, Chontales (Janson).

One specimen. Larger and broader than C. rufocinctus, the basal depression of the

prothorax shallower and less coarsely punctate, the striz more finely punctate, the

markings of the upper surface differently shaped. ‘The male-characters are similar.

The ventral depression is closely punctate, as in one of the five examples here referred

to C. sierrakowskyt.

9. Cactophagus sierrakowskyi. (Tab. 1V. figg. 13, 13 @, 14,4, 15, 2, vars.)

Sphenophorus sierrakowskyi, Gyll. in Schonh. Gen. Cure. iv. p. 887°.

Cactophagus sierrakowskyi, Chevr. Ann. Soc. Ent. Fr. 1882, p. 580 *.

3. Ventral excavation broad and shallow; fifth segment with a large rounded space thickly clothed with

long, coarse, erect, fulvous hairs; pygidium fulvo-pilose and subcristate at the tip; femora strongly

ciliate towards the base beneath; tibie sinuate and set with short, curled, fulvous hairs along their

inner edge.

¢. Rostrum a little more slender; ventral excavation shallower; fifth segment with two small tufts of

fulvous hair at the apex ; anterior and intermediate femora with a small tuft of long fulvous hairs at the

base, similar to that on the coxee.

Hab. Costa Rica, Guapiles 850 feet (Schaus, in U.S. Nat. Mus.: 3), Miravalles

(Underwood: 9); Panama, Chiriqui (Trétsch and coll. Fry: 3 ).— Couomaia,

Antioquia! [ ¢ ].

The six specimens before me (including the type) vary greatly in size and colour,

but they seem to belong to one variable species, which is separable at once from

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 7, April 1910. NN

88 RHYNCHOPHORA.

C. tibialis (Waterh.) and its allies by the absence of the pencil of hairs at the middle

of the hind tibiz in the male. The punctuation of the median portion of the abdomen

and metasternum is variable, it being very sparse and fine in the type and some of the

other examples, and closer and much coarser in the single male seen from Guapiles.

The variations in colour are as follows :—

a. Body rufous, with black markings above and beneath, those on the prothorax consisting of a spot on the

flanks before the middle, a lanciform median vitta, and an oblique streak on each side of it near the base;

the scutellum black ; the elytra with a patch below the shoulder, a larger one at the sides towards the

apex, an oblique triangular spot on the disc near the middle of the suture, and a streak along the suture

at the tip, black; femora, tibie, and rostrum rufous, the femora black at the apex.—CoLomBia, Antioquia

(type, d ).

f. Body rufous, and with black markings as in the type, except that the median streak on the prothorax is

abbreviated behind and the two oblique marks on the disc are replaced by two large basal spots, and

the spots on the outer part of the elytra are smaller; femora, tibiw, and rostrum rufous. (Fig. 15.)—

Costa Rica, Miravalles (? ).

y. Body beneath entirely, or in great part, and the legs, rostrum, and scutellum black ; prothorax and elytra

rufous, the former with two large spots at the base and one on the disc black, the elytra marked much

as in the type (the submedian spot transverse in the Chiriqui specimens, and oblique and preceded by a

short black streak in the one from Guapiles). (Fig. 18.)—Cosra Rica, Panama ( ).

6. Body beneath, legs, rostrum, and scutellum black ; the black markings on the prothorax and elytra largely

extended—the two spots at the base of the prothorax coalescent and extending completely across, and

also confluent with the median streak, the elytra with the humeral and submedian spots coalescent,

and the sutural and subapical markings united into a large apical patch. (Fig. 14.)—Panama (¢ ).

The rostrum (slightly injured in the type) is stout, moderately long, curved, and

faintly punctured, and the broader basal portion is sharply grooved to the deep frontal

fovea. The anterior and intermediate coxe have each a small tuft of long erect

fulvous hairs in both sexes. The length varies from 15-23 mm., the single female

seen being very much smaller than the males. Chevrolat? incorrectly gives ‘‘ Mexico”

as the locality. We figure three specimens (two males from Chiriqui and a female

from Costa Rica), all somewhat differently marked from the type.

10. Cactophagus pulcherrimus. (Tab. IV. figg. 16, 16 a, 17, ¢, vars.)

Sphenophorus pulcherrimus, Chevr. Ann. Soc. Ent. Fr. 1882, p. 5791.

Phyllerythrurus pulcherrimus, Chevr. op. cit. 1885, pp. 92, 93°.

Hab. Mexico}? (Sallé, Mus. Brit.).

Three specimens of this species are before me, all males—one with a greatly-

developed crescentiform fascia on the prothorax (fig. 16) (enclosing a small black spot

on the disc and extending down the middle to the base), one (the type) with the fascia

less extended and acutely produced in the middle behind, and one with a straight

transverse fascia of the same width as the interrupted band on the elytra below the

base (fig. 17), these markings being of a ferruginous or crange colour. The rostrum

is exceedingly stout, slightly curved, much shorter than the prothorax, closely punctate,

shallowly sulcate at the base above; the prothorax is feebly bisinuate at the base;

CACTOPHAGUS.—CACTOPHAGOIDES. 89

the scutellum is large, flat, and triangular; the ventral excavation is long and broad ;

and the anterior coxe are separated by about half their own width. The length

varies from 10-114, and the breadth 42-54 mm.

CACTOPHAGOIDES, gen. nov.

Rostrum abruptly separated from the head above, very stout, cylindrical, arcuate, the basal portion sinuate at

the sides and moderately widened, the peduncle of the submentum sulcate anteriorly, the two vertical

lamelle thus formed rounded at the end in both sexes; club of antenna large, flattened, rounded at the

tip; prothorax abruptly and deeply excised on each side near the apex, strongly bisinuate at the base ;

scutellum triangular; elytra verrucose; pygidium large; mesothoracic epimera broad, obtuse above ;

anterior coxe large and very narrowly, the intermediate coxe more widely, separated ; antero-intercoxal

process of the metasternum flattened and subtruncate in front; femora and tibie feebly ciliate, the femora

unarmed, the tibie rounded at the outer apical angle and with a long apical spur; third tarsa] joint

large, spongy-pubescent beneath; body elongate, broad, robust, very rugose above.

Type, C. verrucosus.

The two Costa Rican forms referred to this genus superficially resemble Disodon-

togenus wollastont, Marshall *, from Ruwenzori, E. Africa, differing from it mainly in

the non-dentate lateral lobes of the peduncle of the submentum in the female, the

broader mesothoracic epimera, and the more strongly sinuate base of the prothorax

and elytra. The very uneven verrucose upper surface is suggestive of that of certain

species of the Tenebrionid-genus Nosoderma. ‘The prothorax is abruptly excised at

the sides in front, much as in Cossonus spathula.

1. Cactophagoides verrucosus, sp. n. (Tab. IV. figg. 18, 18 a, 3.)

Somewhat convex, black, opaque, the depressions and punctures of the surface filled with a brown or greyish-

brown incrustation. Rostrum about as long as the prothorax, coarsely, rugosely, confluently punctate to

about the apical third in the ¢ and to near the middle in the Q, the outer portion shining and very much

smoother, the broader basal portion sulcate and somewhat tumid on each side above the eyes. Prothorax

about as long as broad, sinuate and somewhat rounded at the sides from the base to the deep subapical

excision and with a more or less distinct blunt tooth at about the middle; the surface impressed with

very coarse, irregularly distributed, confluent punctures, the interspaces between which are here and

there obliquely or sinuously raised, the broad depression on the basal portion of the dise bordered on

each side by an oblique ridge, and also with an irregular ridge down the middle. Scutellum hollowed

anteriorly, alutaceous. Elytra a little wider than the prothorax, rounded-subtriangular, the rows of

punctures interrupted by three irregular series of large, elongate, tuberculiform elevations on the disc and

other scattered prominences. Pygidium sparsely punctured, tumid and subcristate down the middle

posteriorly. Beneath coarsely punctate, smoother along the centre of the abdomen in the g, the first

ventral segment depressed down the middle and the fifth shallowly foveate at the apex in this sex. ©

Anterior cox very narrowly, the intermediate pair moderately, separated. Femora and tibie fringed

with very short hairs; the anterior and intermediate coxe each with a cluster of erect hairs, the anterior

pair also with a small tubercle on their inner face.

Length 15-20, breadth 53-8 millim. (¢ 2.)

Hab. Costa Rica, Rio Sucio, Irazu (Rogers), Miravalles (Underwood).

One male and two females.

* Trans. Zool. Soc. Lond, xix. pp. 231, 232, t. 7. fig. 19 (1909).

NN 2

90 RHYNCHOPHORA.

2. Cactophagoides gibberosus, sp. n. (Tab. IV. figg. 19, 19a, ¢.)

Flattened above, black, opaque, the surface in great part covered with a brown incrustation. Rostrum as

long as the prothorax, somewhat tapering outwards, the basal portion moderately widened, sulcate, and

coarsely, confluently punctate, the apical portion shining and very sparsely, finely punctate, becoming rugose

laterally towards the base. Prothorax as long as broad, subquadrate, sinuate at the sides, becoming a

little narrower towards the deep subapical excision; the surface impressed with very coarse, confluent

punctures, the interspaces between which are obliquely or sinuously raised, the disc broadly excavate in

the middle posteriorly. Scutellum flattened. Elytra scarcely wider than the prothorax, subparallel at the

base, rapidly narrowed from about the basal third; uneven, punctate-striate, each elytron with three

stout, elongate elevations on the disc, together forming an interrupted oblique ridge (one on each of the

interstices 2, 3, 4, that on 3 longer than the others), and the seventh interstice also raised from about

the basal third to near the apex. Pygidium sparsely punctate, tumid along the middle. Beneath

coarsely punctate; first ventral segment hollowed down the middle, the fifth shallowly foveate at the

apex. Anterior coxe rather narrowly separated, the intercoxal portion of the prosternum with an oblong

prominence in the middle anteriorly ; intermediate coxs separated by nearly their own width.

Length 16, breadth 64 millim. (¢.)

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

One specimen, assumed to bea male. Flatter than C. verrucosus; the rostrum more

tapering; the prothorax subquadrate, without longitudinal ridges on the disc and also

wanting the blunt marginal tooth; the elytra with fewer longitudinal elevations on

the disc (three only in an oblique series) and the rows of punctures less interrupted ;

the anterior and intermediate coxe less approximate, the prosternum with an oblong

prominence between the anterior pair.

PHYLLERYTHRURUS.

Sphenophorus (genre 88°, Calandrides), Chevrolat, Ann. Soc. Ent. Fr. 1882, p. 578 (part.) Gu

error).

Phyllerythrurus, Chevrolat, op. cit. 1885, p. 92 (part.) *.

Rostrum stout, arcuate, subcylindrical ; peduncle of the submentum sulcate and vertically bilamellate as in

Cactophagus and Cactophagoides; anterior coxew very narrowly, the intermediate cox moderately

separated; prosternum feebly developed behind the anterior cox; antero-intercoxal process of the

metasternum triangular or subconical; femora unarmed; tibie rounded at the outer apical angle, fringed

with extremely short hairs in both sexes; third tarsal joint large, spongy-pubescent beneath; body

rhomboidal or subfusiform, the prothorax or elytra with sanguineous or ochreous stripes or fascis.

Type, Curculio sanguinolentus, Oliv.

Chevrolat included five Tropical-American species under Phyllerythrurus, but the

only character he gave for it was the red band at the base of the elytra. The genus

includes numerous handsomely - marked 'Tropical- American forms, differing from

Eucactophagus (type, Calandra aurofasciata, Bréme) in the non-protuberant meta-

sternum and the sulcate peduncle of the submentum, and from Cactophagus in the

form of the antero-intercoxal process of the metasternum and the general rhomboidal

* The name is misprinted Phylleruthrus in the Zool. Record, 1885, Ins. p. 121, and the wreng volume

quoted “(6) iv.,” instead of “ (6) v.”

PHYLLERYTHRURUS. 91

or subfusiform shape of the body. The sexes in most of the species are difficult to

distinguish, the brushes of hairs on the tibie and last ventral segment (so conspicuous

in certain Cactophagi) being absent in the males of all of them.

The Central-American forms may be grouped thus :—

a. Elytra with a common sanguineous basal fascia, the 4th interstice

gibbous at the base... . 8 oe sanguinolentus, BF.

6. Elytra each with two fasciz (the basal one ifarcate laterally), and

the prothorax sometimes with a complete or interrupted subapical

fascia also, sanguineous or fulvous . . ... . . . . « . guadrinotatus, sp. n.

ce. Elytra each with an oblique fulvous or ochreous fascia on the disc,

the strie straight . . .. . 2 8 ~ 2 ee eo |) 6rectistriatus, sp. n.

d. Elytra each with an oblique line of small red, fulvous, or ochreous

spots on the disc.

a’. Prothorax and elytra also with velvety-black stripes, the ninth

elytral stria sinuate between the spots . . . miniatopunctatus, Chevr.

6. Prothorax and elytra without velvety-black stripes, the elytral st striz

3-9 or 4—9 abruptly sinuate between the spots.

a’. The oblique line of spots almost straight and terminating near

the end of the 8rd interstice . . . . . 2... . . . ) Stinuatus, sp. n.

b°. The oblique line of spots subangulate, terminating at about one-

third from the end of the 3rd interstice . . . . . . ornatus, sp. D.

e. Elytra each with an oblique fulvous stripe, which is continued

obliquely forwards along the sides of the prothorax. . . . . . circumjectus, sp. n.

f. Elytra with a common, saddle-shaped, annulus on the disc, and the

prothorax with an oblique stripe on each side extending forwards to

the subapical constriction, fulvous . . annulatus, sp. ne

g. Elytra each with a very broad, oblique, falvous band, the “bands

becoming almost coalescent at some distance before the apex and

continued obliquely forwards along the sides of the prothorax . . circumdatus, sp. n.

fh. Elytra with an interrupted ochreous submedian fascia. . . . . . sxanthozona, sp. nu.

1. Phyllerythrurus sanguinolentus. (Tab. IV. figg. 20, 20a, ¢.)

Curculio sanguinolentus, Oliv. Encycl. Méth. v. p. 473 (1790) * ; Pabr. Ent. Syst. 1. 2, p. 398”.

Calandra sanguinolenta, Oliv. Ent. v. no, 83, p. 88, t. 10. fig. 116 (Curculio)’; Fabr. Syst. Eleuth.

ii. p. 434%.

Rhynchophorus sanguinolentus, Herbst, Kaf. vi. p. 24, t. 61. fig.6°; Schénh. Gen. Cure. iv. p. 986°.

Sphenophorus sanguinolentus, Chevr. Ann. Soc. Ent. Fr. 1882, p. 578’.

Phyllerythrurus sanguinolentus, Chevy. op. cit. 1885, pp. 92, 93 °.

Hab. Mexico (Mus. Brit.), Santa Rosa in Vera Cruz (Schaus, in U.S. Nat. Mus.) ;

GuatemMaLa (coll. Fry), Cubilguitz in Alta Vera Paz (Champion), Secanquin in Alta

Vera Paz (Pittier, in U.S. Nat. Mus.), Panzos (Conradt); Nicaracua (U.S. Nat. Mus.),

Chontales (Belt, Janson, Richardson) ; Costa Rica, Guapiles and San Carlos (U.S. Nat.

Mus.); Panama, Chiriqui (coll. Fry).—Tosaco !6,

92 RHYNCHOPHORA.

A large, robust, rhomboidal form, black, with a bright sanguineous basal fascia to

the elytra, the elytra themselves finely punctate-striate and with the fourth interstice

widened and more or less gibbous at the base. The metasternum is broadly hollowed

down the middle from a little below the subconical intercoxal process in both sexes,

this depression being deeper and extending to the first two ventral segments in the

male. The femora and tibie have a fringe of short hairs and the pygidium is coarsely

fusco-pilose at the tip.

2. Phyllerythrurus quadrinotatus, sp. n. (Tab. IV. figg. 21, 21a, 3.)

Elongate-subrhomboidal, robust, opaque above, black; the prothorax sometimes with a curved, transverse,

subapical fascia, or an oblique transverse stripe on each side, and the elytra each with two transverse

fasciee of variable breadth—one basal, becoming bifurcate outwards, and the other post-median, neither

reaching the suture—sanguineous or ferruginous. Rostrum strongly arcuate, as long as the head and

prothorax, very stout, rugosely punctate for about two-thirds of its length, smoother at the tip, the rather

long, widened, basal portion narrowly sulcate up tothe frontal fovea, the apical portion in the 2 smoother

from near the base. Prothorax nearly as long as broad, abruptly constricted in front, the sides arcuately

converging anteriorly, the base bisinuate, the disc broadly depressed posteriorly, rather sparsely, finely

punctate. Scutellum triangular, flattened. Elytra much wider than the prothorax, oblong-subcordate,

finely punctate-striate, the interstices feebly convex or flat, the fourth and fifth swollen at the base.

Pygidium and under surface sparsely punctate, the former somewhat tumid at the apex; ventral

excavation long, broad, and deep in both sexes.

Length 21-22, breadth 9,4,-92 millim. (d @.)

Hab. Costa Rica, Cariblanco, Tuis 2400 feet (Lankester, in coll. Godman and in

U.S. Nat. Mus.); Panama, Chiriqui (coll. Fry).

Four examples, varying in the colour of the prothorax and in the width of the

elytral fascize, the basal fascia, however, is bifurcate laterally in all of them. A very

large form related to P. sanguinolentus, but more elongate, the elytra bifasciate, with.

the fourth and fifth interstices moderately swollen at the base. ‘The non-protuberant

metasternum, the shorter, stouter, more curved, rugose rostrum, &c., separate P. quadri-

notatus from Eucactophagus duplocinctus (infra).

3. Phyllerythrurus rectistriatus, sp.n. (Tab. IV. figg. 22, 22a, 3.)

Somewhat fusiform, opaque above, black, pruinose ; the elytra each with a humeral spot, and an oblique fascia

on the dise extending from below the shoulder to about the middle of the second stria, sanguineous (the

fascia ochreous in one specimen), these markings often coalescent beneath. Rostrum strongly arcuate,

very stout, as long as the prothorax, sulcate and coarsely, closely punctate to about the middle, sparsely

punctured thence to the tip, the sulcus deep along the abruptly-widened basal portion, the apical portion

smoother in the 2. Prothorax about as long as broad, obliquely narrowed anteriorly and slightly sinuate

at the sides behind the middle, bisinuate at the base, transversely hollowed on the dise posteriorly, sparsely,

finely punctate. Scutellum triangular, flat. Elytra much wider than the prothorax, oblong-subcordate,

finely striate, the striz straight and with conspicuous scattered punctures, the interstices flat, obsoletely

uniseriate-punctate. Pygidium sparsely punctured, subcarinate and setulose at the tip. Beneath very

sparsely punctate ; ventral excavation of the ¢ long and shallow.

Length 11-163, breadth 43-7 millim. (¢ @.)

PHYLLERYTHRURUS. 93

Hab. Nicaragua, Chontales (Belt, Janson); Costa Rica (Van Patten), Cariblanco

835 metres (Lankester); Panama, Chiriqui (coll. Fry).

Six examples. Very like P. ornatus, but with the oblique fascia on the elytra

straighter and not formed by a row of distinctly-separated spots, the strie not sinuate,

the rostrum more deeply sulcate towards the base above. The humeral spot is scarcely

visible from above. ‘The allied P. circumjectus has the oblique fascia on the elytra

longer and placed at a different angle, and continued forwards along the sides of the

prothorax.

4. Phyllerythrurus miniatopunctatus. (Tab. IV. figg. 23, 234, 3.)

Cactophagus miniatopunctatus, Chevr. Ann. Soc. Ent. Fr. 1882, p. 580°.

Somewhat fusiform, opaque above, black; the elytra each with seven or eight ferruginous or ochreous spots—

three or four in an oblique line on the disc beyond the middle, two in a line with these on the outer

margin below the humeri, one on the third and another on the fifth interstice below the base (placed

transversely, both small), and one on the outer margin towards the apex; the prothorax with a broad,

lanciform, basally-widened median vitta and an oblong patch at the sides, and the elytra with a stripe

along the sides and a broader one on the disc (the latter extending from the two sub-basal spots to near

the tip), velvety-black; the rest of the surface covered with a purplish or brownish-cinereous pruinosity,

Rostrum stout, curved, about as long as the prothorax, rugosely punctate to about the middle, shallowly

sulcate beneath in the g, the widened basal portion narrowly sulcate, the apical portion almost smooth

from near the base in the Q. Prothorax about as long as broad, subconical, bisinuate at the base,

broadly depressed on the disc posteriorly, sparsely, finely punctate. Scutellum elongate-triangular,

flattened. Elytra finely striate, the ninth stria sinuate and all with scattered small punctures, the inter-

stices flat. Pygidium sparsely punctured, setulose. Beneath sparsely punctate; ventral segment 1

broadly flattened or depressed down the middle, and 5 transversely foveate at the apex, in the ¢.

Femora with a few short erect hairs beneath.

Length 11-13, breadth 43-53 millim. (¢ 9.)

Hab. Mexico! (Mus. Holm.); Guatemata, Cubilguitz and San Juan in Alta Vera

Paz (Champion); Nicaracua, Chontales (Janson).

I have seen four examples of this species, including the type (¢), the one from

Nicaragua with the small ferruginous spots on the disc of the elytra showing a tendency

to surround a common, interrupted, heart-shaped, black patch. Viewed laterally, the

velvety-black streaks are very conspicuous. The dense pruinosity modifies the colour

of the rest of the dark portion of the surface.

5. Phyllerythrurus sinuatus, sp. n. (Tab. IV. figg. 24, 24a, 3.)

Somewhat fusiform, opaque above, black; the elytra each with a strongly sinuate oblique series of eight rather

large fulvous spots extending around the lower portion of the humeri to near the apex of the third

interstice (the humeral spot curved, elongate, and in great part hidden from above, the last two also

elongate); the rest of the surface covered with a brownish-cinereous or bluish-grey pruinosity. Rostrum

very stout, as long as the prothorax, strongly arcuate, rugosely punctate to near the tip, the latter almost

smooth, the abruptly-widened basal portion narrowly sulcate up to the deep frontal fovea, the apical

portion much smoother in the ¢. Prothorax as long as broad, somewhat conical, bisinuate at the base,

broadly depressed on the disc posteriorly, very sparsely, finely punctate. Scutellum triangular, flattened.

Elytra finely punctate-striate, the striz 4-9 abruptly sinuate between the fulvous spots, the interstices

94 RHYNCHOPHORA.

flat, obsoletely uniseriate-punctate. Pygidium sparsely punctate, setulose. Beneath very sparsely

punctate; ventral excavation of the ¢ broad, shallow, extending to the middle of the metasternum ;

fifth segment transversely foveate at the apex in both sexes. Femora with a few rather long erect hairs.

Length 133-17, breadth 53-64 millim. (¢ 2.)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

Three examples. Distinguishable from the various allied forms by the very long

sinuous oblique series of fulvous spots on each elytron and the abruptly sinuate

strie.

6. Phyllerythrurus ornatus, sp.n. (Tab. IV. figg. 25, 25a, 2.)

Somewhat fusiform, opaque above, black, pruinose; the elytra each with asmall humeral spot (wanting in

the Bugaba specimen), and a sinuous, subangulate, oblique series of seven or eight irregular spots (the

one on the fifth interstice larger than the rest) extending from below the shoulder to the second stria at

about one-third from the apex, fulvous. Rostrum as in P. sinuatus, but with the apical portion smoother

in the g. Prothorax and elytra as in P. sinwatus, the latter with the strie 3-9 abruptly sinuate between

thespots. Ventral excavation of the ¢ long and deep, coarsely punctate, the fifth ventral segment foveate

at the apex in this sex.

Length 113-13, breadth 43-54 millim. (¢ 2.)

Hab. Nicaracua, Chontales (Belt, Janson); Panama, Bugaba (Champion).—Ecuanor,

Cachabé (Rosenberg, in Mus. Brit.).

Seven examples, the one from Bugaba (a ? ) wanting the humeral spot and having

the rostrum shallowly grooved and ciliate beneath, and the one from Ecuador (a ¢ )

wanting the outer spot of the oblique series crossing the elytra. ‘This insect appears

to be the low country form of P. sinuatus; but it cannot be treated as a variety of

that insect, the fulvous spots (which are sometimes tumid and shining) being placed in

a different position, the larger oblong one on the fifth interstice giving an angulate

appearance to the fascia. The hairs on the under surface of the rostrum in one

example are perhaps due to its fresher condition.

7. Phyllerythrurus circumjectus, sp.n. (Tab. IV. figg. 26, 26a, 2.)

Somewhat fusiform, opaque above, black, bluish-grey-pruinose ; the prothorax with an oblique stripe on each

side, extending for some distance along the outer margin of the elytra, and then continued obliquely

across the disc to the second stria at about one-fourth from the apex, fulvous, the very large triangular

space enclosed on the elytra somewhat piceous. Rostrum very stout, arcuate, as long as the prothorax,

closely punctate to near the tip in the ¢, the apical portion almost smooth in the 2, the widened basal

portion narrowly sulcate. Prothorax about as long as broad, subconical, obliquely narrowed anteriorly,

bisinuate at the base, transversely depressed on the disc posteriorly, finely, somewhat closely punctate.

Scutellum elongate-triangular, flattened. Elytra finely striate, the strie with widely-scattered fine

punctures, the interstices flat, obsoletely uniseriate-punctate. Pygidium sparsely punctate, setulose,

tumid along the middle posteriorly. Beneath very sparsely punctate; first ventral segment broadly

excavate inthe ¢. Femora with a few long erect hairs beneath.

Length 14-15, breadth 5-6 millim. (¢ 9.)

Hab. Costa Rica, Cariblanco (Lantester); Panama, Bugaba, Volcan de Chiriqui

(Champion).

PHYLLERYTHRURUS. 95

Four examples, one of the supposed females (with a comparatively smooth rostrum)

having the first ventral segment as deeply excavate as in the male. The much

narrower stripe on the prothorax and elytra, the more closely punctured prothorax,

the widely separated punctures of the elytral striae, and the subcarinate pygidium

distinguish this species from P. circumdatus; and the extended, differently-placed

stripe separates it from P. rectistriatus. A closely allied unnamed form with the stripe

extending along the fifth elytral interstice to the tip, &c., occurs in Ecuador.

8. Phyllerythrurus annulatus, sp.n. (Tab. IV. figg. 27, 2 ; 28, 284, ¢, var.)

Somewhat fusiform, rather broad, opaque above, black, pruinose; the prothorax with a broad, strongly

oblique fascia on each side of the disc (the two fascie coalescent just behind the apical constriction), and

the elytra with a common, transverse, sharply-defined, saddle-shaped annulus, extending from a little

below the base to about one-fourth from the apex and reaching the outer margin, fulvous or ochreous,

the large enclosed space on the elytra sometimes fusco-castaneous or brown. Rostrum very stout, feebly

curved, short, a little more than half the length of the prothorax, closely punctate to near the tip, the

slightly widened basal portion narrowly sulcate, the apical portion much smoother in the 9. Prothorax

about as long as broad, obliquely narrowed anteriorly, feebly bisinuate at the base, transversely depressed

on the disc posteriorly, sparsely, finely punctate. Scutellum elongate-triangular, flattened. Elytra very

finely punctate-striate, the interstices flat, obsoletely uniseriate-punctate. Pygidium and under surface

sparsely punctured. Ventral excavation broad and deep in the 4, shallower in the ?.

Length 114-16, breadth 42-62 millim. (3 @.)

Hab. Costa Rica, Cariblanco (Lankester), Savanillas de Pirris (Underwood); Panama,

Volcan de Chiriqui 4000 feet (Champion).

Six examples, the four from Costa Rica with the space on the elytra enclosed by the

annulus brownish or fusco-castaneous, this portion being black in the two from Panama.

The rostrum is as short as in Cactophagus pulcherrimus.

9. Phyllerythrurus circumdatus, sp.n. (Tab. IV. figg. 29, 29a, ¢.)

Somewhat fusiform, opaque above, black, pruinose; the prothorax with a broad oblique stripe on each side

extending forward to the subapical constriction, and the elytra with a still broader curved band extending

down the outer portion from the base to very near the suture beyond the middle (leaving a common,

elongate, subtriangular patch on the basal half and the apex black), fulvous. Rostrum stout, strongly

arcuate, somewhat abruptly bowed at the tip, as long as the prothorax, coarsely and rather closely

punctured to about the middle and almost smooth at the apex, the widened basal portion feebly sulcate

between the points of insertion of the antenne, the apical portion smoother in the 9, the bilamellate

peduncle of the submentum very prominent anteriorly, the frontal fovea oblong. Prothorax as long as

broad, narrowing from the base, the sides obliquely converging anteriorly, the base bisinuate, the dise

transversely depressed posteriorly, very sparsely, finely punctate. Scutellum elongate-triangular, flattened.

Elytra obliquely narrowing from the rounded humeri, very finely punctate-striate (the punctures on the

fulvous portion indicated by a larger and darker spot), the interstices flat. Pygidium rather convex,

sparsely punctured. Beneath very sparsely punctate; metasternum broadly excavate down the middle

from a little below the subconical intercoxal process, the excavation continued along the first ventral

segment in the ¢, the fifth segment foveate at the apex in this sex. Femora with a few short erect

hairs beneath.

Length 12-13, breadth 4,%-5;, millim. (¢ 2-)

Hab. Nicaraaua, Chontales (Belt, Janson, Richardson); Costa Rica, Miravalles

(Underwood), Zent, Atlantic slope (Pittier).

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, Apri] 1910. 00

96 RHYNCHOPHORA.

Seven specimens, showing no sign of variation. The system of coloration of this

insect is very like that of certain species of the genus Ambates.

10. Phyllerythrurus xanthozona, sp.n. (Tab. IV. figg. 30, 30a, ¢.)

3. Fusiform, opaque above, black, the elytra each with a rather broad, oblique, outwardly-widened, ochreous

fascia just before the middle. Head closely punctate; rostrum very stout, curved, much shorter than

the prothorax, the abruptly-widened basal portion closely punctate and profoundly sulcate, the outer

portion much smoother. Prothorax as long as broad, subconical, somewhat dilated at a little before the

middle (the sides appearing sinuate behind), bisinuate at the base, very sparsely and somewhat coarsely

punctate, the disc broadly excavate posteriorly. Scutellum large, flat, triangular. Elytra moderately

long, rounded-subtriangular, finely punctate-striate, the interstices obsoletely uniseriate-punctate. Pygi-

dium coarsely punctate, subcarinate at the tip. Beneath sparsely punctate; ventral excavation broad and

very deep, extending forwards along the metasternum for about two-thirds of its length.

Length 102, breadth 4, millim.

Hab. GuatTemaua, Senahu in Alta Vera Paz (Champion).

One male. In this species the rostrum is comparatively short, profoundly sulcate at

the base above; the prothorax is subconical, deeply excavate on the disc; and the

ochreous fascia on each elytron is oblique and widened outwards.

EUCACTOPHAGUS, gen. nov.

Peduncle of the submentum narrow, not sulcate or vertically bilamellate in front; metasternum conically

protuberant or tumid between the more or less widely separated intermediate cox; anterior cox

narrowly separated ; the other characters as in Phyllerythrurus.

Type, Calandra aurofasciata, Bréme.

The protuberant antero-intercoxal process of the metasternum (a character not

noted by Chevrolat in his description of E. orizabensis) is the chief peculiarity of the

typical members of the present genus. In E. aurocinctus this feature is reduced to a

minimum, but as that species is undoubtedly nearly allied to EL. graphipterus it is best

placed here. ‘Two groups of species are indicated—one with reddish or ochreous

markings on the elytra, the other with a large velvety-black patch on each wing-case.

The pygidium is more or less raised or subcarinate down the middle. The male-

characters are feeble, as in Phyllerythrurus. The species may be tabulated thus :--

a. Metasternum protuberant anteriorly.

a’. Elytra fasciate or maculate.

a’. Elytra with two sanguineous or ochreous fascie . . . . . . . duplocinctus, sp. n.

6°. Hlytra with a single broad ochreous fascia. . . . . . . . . orizabensis, Chevy.

c’. Elytra with a common, saddle-shaped, ochreous, fusco-trimaculate

patch extending to beyond the middle. . . . . - . « graphipterus, sp. n.

6". Klytra and prothorax pruinose, the elytra each with a large velvety-

black patch on the disc.

d*. Metasternum strongly protuberant, the black patch on the elytra

rounded . carinipyga, Sp. 0.

EUCACTOPHAGUS. 97

e’. Metasternum moderately protuberant, the black patch on the elytra

elongate. 2. 2. ee ee ek ee ee prutinosus, sp. n.

6. Metasternum feebly swollen anteriorly ; elytra with an angulate ochreous

fascia below the base, sometimes obsolete . . . . . . . . . « aurocinctus, sp. n.

1. Hucactophagus duplocinctus, sp.n. (Tab. IV. figg. 31, 81a, 3; 32 ¢,

33, 2, vars.) .

Oblong-rhomboidal, opaque above, black, the elytra with two transverse sanguineous fasciee of variable width

and development (sometimes reduced to three or four spots, and sometimes broad and almost reaching

the suture and outer margin)—one a little below the base and the other far beyond the middle. Rostrum

stout, arcuate, in some specimens fully half the length of the body, obsoletely punctate. Prothorax a

little broader than long, conical, strongly bisinuate at the base, very sparsely, finely punctate, the disc

broadly excavate in the middle behind. Scutellum large, triangular, arcuate-emarginate in front.

filytra oblong-subcordate, finely striate, the strie very feebly punctate. Pygidium sparsely punctate,

and with a stout fusco-pilose median ridge. Beneath very sparsely, finely punctate, smoother down the

middle. Metasternum strongly protuberant. First ventral segment slightly hollowed down the centre

inthe g. Anterior tibic fringed with rather longer hairs in the g than in the 9°.

Var. a. The elytral fascie broader, subangulate, ochreous. (Fig. 32.) ([Chiriqui, one large ¢.]

Var. 3. The elytral fasciz rather narrow, sanguineous, the anterior one complete and enclosing a small black

humeral spot; the femora and tibiz sanguineous to near the tip. (Fig. 33.) [Mexico, one small 2 .]

Length 15-24, breadth 6,,-103 millim. (¢ @.)

Hab. Mexico, Santacomapan in Vera Cruz (Sallé: var. 8B); GuatemaLa (coll. Fry) ;

NicaraGua, Chontales (Belt, Janson) ; Costa Rica, Caché (Rogers), Miravalles ( Under-

wood); Panama, Chiriqui (7rétsch: type and var. a).

Twelve specimens in all have been seen of this species, varying as above

described, the ochreous colour of the fasciz in one example being perhaps due to

immaturity. The arcuate-emarginate scutellum and bifasciate elytra readily distinguish

E. duplocinctus.

2. Eucactophagus orizabensis. (Tab. IV. figg. 34, 34 a.)

Sphenophorus orizabaensis, Chevr. Ann. Soc. Ent. Fr. 1882, p. 578°.

Phyllerythrurus orizabaensis, Chevr. op. cit. 1885, pp. 92, 93 *.

Rhomboidal, broad, robust, opaque above, black, the elytra with a broad, shining, transverse, ochreous fascia

before the middle, the fascia narrowing inwards and almost or quite reaching the suture, the abdomen

sometimes with a small reddish spot on each side of the pygidium. Rostrum arcuate, very stout, as long

as, or alittle longer than, the prothorax, gradually thickened basally, sparsely, finely punctate, the frontal

fovea small. Prothorax conical, slightly broader than long, strongly bisinuate at the base, finely punctate,

the disc broadly and deeply excavate posteriorly. Scutellum elongate-triangular, flat. Elytra much

wider than the prothorax, cordate, finely punctate-striate, the interstices flat, convex and shining on the

ochreous portion of the surface. Pygidium sparsely punctate, and with a stout median ridge. Beneath

very sparsely punctate; first ventral segment breadly subdepressed in the g¢. Prosternum with a

compressed tubercle between the anterior coxe. Metasternum strongly protuberant. Tibie with a

dense fringe of very short hairs. Tarsi with a few scattered long bristly hairs above.

Length 15-16 *, breadth 7-73 millim.

* The length is given as 10 mm. by Chevrolat, evidently a misprint for 16 mm.

002

98 RHYNCHOPHORA.

Hab. Mexico (Mus. Brit.), Orizaba (Sallé); GuatemaLa, Tamahu in Vera Paz

(Champion).

The three examples of this species befure me are assumed to include both sexes.

E. orizabensis is a northern representative of the Colombian Z. aurofasciatus, Bréme,

from which it mainly differs in the position of the elytral fascia and the flatter

scutellum.

3. Eucactophagus graphipterus, sp. n. (Tab. IV. figg. 35, 35 a, 2.)

Oblong-subelliptic, broad, robust, opaque, black, the elytra with a very broad, common, irregular, narrowly

interrupted, saddle-shaped, ochreous patch, extending from a little below the base to near the apex and

enclosing a common, transverse, fusco-castaneous patch at the middle of the suture and a spot on the disc

between it and the shoulder, the punctures on this portion of the surface black. Rostrum very stout,

arcuate, about as long as the prothorax, closely punctate, shallowly sulcate beneath in the ¢, the

widened basal portion narrowly grooved above, the frontal fovea deep. Prothorax a littie broader than

long, the sides parallel behind and strongly rounded anteriorly, the base deeply bisinuate and with the

median lobe considerably produced ; very sparsely, finely punctate, the disc broadly depressed posteriorly

and with two widely-separated fovex at about the middle. Scutellum rather small, elongate-triangular,

flattened. Elytra much wider than the prothorax, subcordate, finely striate, the strie with scattered

coarse punctures, the interstices feebly convex. Pygidium sparsely punctured, subcarinate. Beneath

very sparsely punctate; first ventral segment hollowed down the middle in the g. Metasternum

strongly protuberant.

Length 16-17, breadth 72-8 millim. (¢ 9.)

Hab. Costa Rica, Miravalles (Underwood: 2 ).—Couompia (coll. Fry: ¢ ).

‘Two specimens, with the markings very similar *. The latter form an irregular saddle-

shaped patch occupying at least half the length of the elytra, enclosing a common

transverse sutural spot, two smaller spots on the disc, and a small dot on each of the

seriate punctures. The median basal lobe of the prothorax impinges on the scutellar

cavity.

4. Eucactophagus carinipyga, sp. n. (Tab. V. fige. 1, la, b, 2.)

Elongate-rhomboidal, opaque above, black, cinereo-pruinose, the elytra each with a very large velvety-black

patch on the disc a little before the middle extending inwards to near the suture. Rostrum feebly

curved, moderately stout, much longer than the head and prothorax, obsoletely punctate, gradually

widened towards the base, the frontal fovea small. Prothorax nearly as long as broad, conical, strongly

bisinuate at the base, broadly and deeply excavate on the disc posteriorly, sparsely, finely punctate.

Scutellum large, triangular, flattened. Elytra oblong-subcordate, much wider than the prothorax,

transversely depressed at the base; very finely punctate-striate, the interstices flat, each with an

irregular line of excessively minute punctures. Pygidium (fig. 1 6) sparsely punctate, and with a stout,

prominent, median ridge. Beneath very sparsely punctured, almost smooth down the middle of the

metasternum and abdomen. Metasternum strongly protuberant.

Length 17-18, breadth 63-74 millim. (9.)

Hab. Nicaracua, Chontales (Janson, Richardson).

‘Two females, both somewhat worn. In this insect the rostrum ( 2 ) is very elongate,

feebly curved, and obsoletely punctate, the metasternal protuberance is greatly developed,

* There is also an example in the U.S. Nat. Mus., found by Prof. Britton in a greenhouse in Connecticut.

EUCACTOPHAGUS. 99

the pygidial carina is very prominent, and the velvety-black patch on the disc of each

elytron extends to about one-third of their length.

5. Kucactophagus pruinosus, sp. n. (Tab. V. figg. 2, 2a, 3.)

Elongate-rhomboidal, opaque above, black, densely bluish-grey-pruinose, the elytra each with a very large,

oblong, velvety-black patch on the disc extending from a little below the base to far beyond the middle

and nearly reaching the suture and outer margin. Rostrum strongly arcuate, very stout, a little longer

than the head and prothorax, closely, coarsely punctate, smooth at the tip, narrowly sulcate along the

somewhat abruptly widened basal portion up to the deep frontal fovea, in the ¢ flattened at the apex

above and subangulate behind the peduncle beneath, in the 2 subcylindrical and a little smoother at

the tip. Prothorax conical, about as long as broad, flattened on the disc posteriorly, moderately sinuate

at the base, very sparsely, finely punctate. Scutellum large, elongate-triangular, flattened. LElytra a

little wider than the prothorax, rapidly narrowing from the rounded humeri; very finely punctate-

striate, the interstices flat, each with an irregular line of excessively minute punctures. Pygidium

sparsely punctate, carinate from about the middle to the tip. Beneath very sparsely, the shallow ventral

excavation of the g more coarsely, punctate, the fifth segment with a transverse fovea at the apex in

this sex. Metasternum feebly protuberant.

Length 163-18, breadth 64-74 millim. (¢ @.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One pair. This insect resembles the Nicaraguan LH. carinipyga, but it has a much

stouter, coarsely punctate, strongly curved rostrum, the prothorax more feebly bisinuate

at the base and with the disc simply flattened, the elytra less widened anteriorly, the

pygidium more feebly carinate, and the metasternal protuberance much less developed,

6. Hucactophagus aurocinctus, sp.n. (Tab. V. figg. 3, 3a, 2.)

Subrhomboidal, broad, opaque, black, the elytra each with a transverse, irregular, ochreous fascia of variable

width (in one specimen running forwards for a short distance along the sixth, and in the other running

downwards along the fourth, interstice) before the middle extending from the first stria to near the outer

margin, the punctures above each bearing an extremely minute scale, those crossing the fascia black.

Head closely punctate; rostrum very stout, strongly arcuate, about as long as the prothorax, closely,

rather coarsely punctate, shallowly sulcate beneath, the widened basal portion obsoletely grooved above.

Prothorax broader than long, strongly rounded at the sides anteriorly, deeply bisinuate at the base ;

very sparsely, finely punctate, the disc broadly hollowed in the centre posteriorly and with two widely-

separated shallow fovese at about the middle. Scutellum rather small, triangular, flattened. Elytra

much wider than the prothorax, subcordate, the subapical callosities rather prominent; finely striate,

the strie with coarse, deep, foveiform, scattered punctures, the interstices somewhat convex or uneven.

Pygidium and under surface sparsely punctate, the pygidium slightly raised along the middle posteriorly ;

ventral excavation of the ¢ broad, extending to the metasternum. Metasternum feebly triangularly

swollen between the middle coxe.

Yar. Entirely black, the punctures on the prothorax filled with a whitish incrustation, those along the elytral

striw large and very deep, the subapical callosities not prominent.

Calandra albipunctata, Sturm, in litt.

Length 103-123, breadth 5-54 millim. (¢ 2.) . |

Hab. Mexico (ex coll. Sturm: var., 2); Nicara@ua, Chontales (Belt: ¢); Cosra

Rica (Zeledon, in U.S. Nat. Mus.: @ ).

100 RHYNCHOPHORA.

. Three specimens—two from Nicaragua and Costa Rica respectively with an ochreous

fascia on the elytra and one from Mexico wholly black. Not unlike F. graphipterus,

but much smaller, the median lobe of the prothorax less produced, the metasternum

not protuberant. The elytral sculpture is similar to that of Cactophagus striatoforatus.

Sturm’s MS. name is misleading and best ignored. An allied form occurs in Peru.

The Costa Rican example is figured.

ZAETHES.

Aithes, Chevrolat, Ann. Soc. Ent. Fr. 1882, p. 583.

The type of this genus is an extraordinary insect totally unlike any American form

known to me, and it is probable that it will prove to be of eastern origin, and not

from Mexico as stated, some mistake having perhaps been made in labelling. The

principal characters of thes are :—

Rostrum stout, curved, sulcate and hairy beneath in ¢, feebly dilated at the apex, deeply sulcate at the base

above, the slightly widened basal portion short ; peduncle of the submentum narrow, flattened, shallowly

sulcate ; antennal club flattened, moderately large, bluntly rounded at the tip, the opaque apical portion

short ; prothorax obliquely truncate on each side at the base and armed with two short spines on each

side at the apex (¢); scutellum small, oblong-subtriangular ; elytra oblong, separately rounded at the

- apex, the dorsal interstices subcostate anteriorly ; pygidium broad, raised at the sides and carinate down

the middle, pilose ; anterior coxe narrowly, the intermediate coxse widely, separated; prosternum with

a bilobate overlapping basal process; metasternum flattened, the intercoxal process bisinuate in front ;

femora unarmed, feebly sinuate and very hairy beneath ; tibie toothed at the outer apical angle, densely

ciliate within, the hairs longer on the anterior pair (¢); tarsi with joints 1-3 spongy-pubescent beneath,

3 very large ; body elongate-elliptic, flattened above, covered with a dense incrustation relieved by large

velvety-black patches on both the prothorax and elytra.

‘1. Aithes spinicollis. (Tab. V. figg. 4, 4a, 3.)

Abthes spinicollis, Chevr. Ann. Soc. Ent. Fr. 1882, p. 5837.

g. Ventral segment 1 broadly depressed down the middle, 5 also excavate posteriorly and furnished at the

apex with two clusters of erect fulvous hairs. For other characters, as to clothing of the femora, tibia,

and rostrum, and the armature of the prothorax (some of which are certainly peculiar to the ¢), see

the definition of the genus, supra.

flab. Mexico (coll. Chevrolat, ex coll. Lacordaire').

The unique type (¢ ) of this species has been kindly communicated by Dr. Sjéstedt,

of the Stockholm Museum, and we take the opportunity of figuring it. ‘ Spheno-

phorus” dehaant, Gyll. (a species not mentioned by Chevrolat in his papers on the

genus), and its allies, from Java, &c., seem to be somewhat nearly related to Aithes.

METAMASIOPSIS, gen. nov.

Rostrum stout, curved, cylindrical, the antenne inserted very near the base, the widened basal portion short ;

peduncle of the submentum narrow, not sulcate, sometimes with an angular or tuberculiform prominence

anteriorly ; scutellum long, narrow; pygidium large, prominent; anterior cox moderately, the inter-

mediate coxee much or less widely, separated ; prosternum considerably developed behind the coxe, the

METAMASIOPSIS. TOL

basal overlapping portion deeply sulcate down the middle; metasternum flattened, broad and bisinuate

in front ; femora subclavate, smooth or very sparsely punctate ; tibise toothed at the outer apical angle

(fig. 56), fringed with extremely short hairs on the inner edge; third tarsal joint moderately large,

spongy-pubescent beneath ; body elongate-elliptic or subfusiform, the elytra spotted or fasciate.

Type, M. rugipectus.

The three Mexican forms referred to this genus are closely related to Metamasius

(type, Calandra sericea, Oliv.), but differ from it in having the tibie toothed at the

outer apical angle. ‘There are various S.-American species, including Sphenophorus

costatus, Waterh., from Colombia, Heterotoxus transatlanticus, Kirsch, from Ecuador

(the type of which I have seen *), with similarly formed tibie, but these southern

insects have the femora abruptly excavate and dentate towards the apex.

The three species of Metamasiopsis are separable thus :—

a. Prosternum rugose and clothed with minute hair-like scales;

anterior and intermediate cox moderately separated ; rostrum

and legs short, the femora very sparsely punctate; elytra each

with two curved transverse lines of small ochreous spots on the

disc; pygidium very prominent . ..... . . . . « rugipectus, sp. n.

b. Prosternum very sparsely punctate, bare; anterior and intermediate

cox more widely separated ; rostrum and legs longer, the femora

almost smooth and glabrous.

a’. Elytra each with two angular ochreous fasciz on the dise . . flavopictus, sp. n.

b’. Elytra each with two transverse lines of small ochreous spots

onthedise . . 2. 2. ee ee ee ee ew ee 6 decempunctatus, sp. n.

1. Metamasiopsis rugipectus, sp. n. (Tab. V. fige. 5, 5a, b, 2.)

Elongate, fusiform, rather narrow, convex, subopaque and alutaceous above; black, the elytra each with a

curved transverse series of small ochreous spots below the base, two small, oblong, similarly-coloured,

obliquely-placed spots on the disc beyond the middle (one on the third and the other on the fifth inter-

stice), and an oblong ferruginous streak near the apex. Head sparsely, finely punctate, the frontal fovea

small; rostrum moderately stout, curved, barely half the length of the prothorax, very finely, sparsely

punctate, the peduncle of the submentum with a compressed prominence at the apex. Prothorax con-

siderably longer than broad, slightly rounded at the sides, feebly bisinuate at the base, gradually narrowing

anteriorly ; impressed with extremely minute widely-scattered punctures, those in front of the scutellum

larger and deeper. Scutellum elongate-triangular, narrow, flat, and impressed with a row of transverse

punctures. Elytra a little wider than the prothorax, oblong-subcordate, separately rounded at the apex ;

crenate-striate, the interstices convex, each with a row of very minute punctures down the middle.

Pygidium long, porrect, very coarsely punctate, subcarinate. Beneath somewhat thickly punctate along

the sides, the prosternum transversely rugose and set with minute hair-like scales, the ventral segments

unimpressed. Legs short; femora very sparsely punctate.

Length 12, breadth 4 millim. ( 9.)

Hab. Mexico, Cerro de Palmas f (Hége).

* Heteroxus, Lac., type H. gratus, Lac., from Java, is unknown to me, and the Ecuador insect does not

possess several of the characters assigned to that genus.

+ Incorrectly given as ‘‘ Cerro de Plumas” in various places in the preceding volumes of this work, owing

to a mistake in labelling.

102 RHYNCHOPHORA.

One specimen. Recognizable by the comparatively short rostrum, the long pro-

thorax, the rather small, narrow scutellum, the crenate-striate, ochreo-maculate elytra,

the prominent, coarsely sculptured pygidium, the rugose subpilose prosternum, the

comparatively short legs, and the moderately separated anterior and intermediate coxe.

M. rugipe: us bears a certain resemblance to Heterotoxus transatlanticus, Kirsch, but

that insect has sharply-toothed femora, more hairy tarsi, &c.

2. Metamasiopsis flavopictus, sp.n. (Tab. V. figg. 6, 6a, ¢.)

Elongate-elliptic, somewhat convex, opaque above, shining along the middle beneath, subglabrous; black, the

elytra each with two angulate, transverse, ochreous fascize on the disc (one before and the other just

beyond the middle, the anterior one extending forwards, and the posterior one downwards, on the fifth

interstice), the covered dorsal portion of the abdomen ferruginous. Rostrum stout, curved, cylindrical,

much shorter than the prothorax, very sparsely, minutely punctate, smooth at the tip, shallowly sulcate

beneath, the frontal fovea conspicuous. Prothorax a little longer than broad, gradually narrowing from

the middle, bisinuate at the base, flattened on the disc, and with very minute scattered punctures.

Scutellum elongate-triangular, narrow, hollowed down the middle. Elytra considerably wider than the

prothorax, finely punctate-striate. Pygidium rather convex, coarsely punctate, fulvo-cristate at the tip.

Beneath very sparsely punctate; ventral excavation rather deep, the fifth segment with a few short hairs

at the tip. Femora almost smooth, glabrous.

Length 123, breadth 44 millim. (¢.)

‘Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One specimen. Lasily recognizable by the two angulate, transverse, ochreous

fasciz on the disc of each elytron, the long and comparatively smooth prothorax, the

tooth at the outer apical angle of the tibie, &c. This species is not unlike Mata-

masius callizona (Chevr.), but the elytra are less widened anteriorly (the general shape

being more oblong) and irregularly bifasciate on the disc, &c.

3. Metamasiopsis decempunctatus, sp.n. (Tab. V. figg. 7, 7a, 2.)

Elongate-elliptic, opaque above; black, the elytra each with five small ochreous spots—three placed in a

transverse row before (on the interstices 3, 5, and 7), and two in a more oblique line beyond (on the

interstices 3 and 5), the middle; the prothorax in one specimen (3) with a patch on each side

behind and two very faint spots in the middle at the base, rufous. Rostrum stout, cylindrical, curved,

about two-thirds the length of the prothorax, very sparsely obsoletely punctate, smooth at the tip,

‘ distinctly sulcate beneath in the g, feebly so in the ¢, the frontal fovea small. Prothorax a little

longer than broad, gradually narrowing from the middle, flattened on the disc, with a few scattered

punctures at the base. Scutellum elongate-triangular, narrow, hollowed down the middle anteriorly.

Elytra much wider than the prothorax, gradually narrowed from the rounded humeri, finely punctate-

striate, the punctures distant one from another, the interstices feebly convex. Pygidium sparsely

punctate, subcristate at the apex. Beneath very sparsely punctured; ventral excavation long, deep,

and almost smooth in the ¢', nearly obsolete in the 9. Femora smooth, glabrous,

Length 133-15}, breadth 44-53 millim. (¢ @.)

Hab. Muxico, Cinco Sefiores (Sallé), Jalapa (Hoge).

One pair. This is the only Central-American species of the present section with

five small ochreous spots arranged in two transverse series on the disc of each elytron.

METAMASIOPSIS.—METAMASILUS. 103

The rufous patches on the prothorax are evanescent, as in Cactophagus spinole. ‘The

tooth at the outer apical angle of the tibize is less developed than in M. flavopictus, of

which MW. decempunctatus may prove to be an extreme form.

METAMASIUS.

Metamasius, Horn, Proc. Am. Phil. Soe. xiii. pp. 408, 410 (1873) ; Leconte, op. cit. xv. p. 331.

This genus, the type of which is Calandra sericea, Oliv., includes a large number of

Tropical American forms, in addition to those here enumerated *. Its chief characters

are :—The narrow, flattened, or obsoletely grooved peduncle of the submentum, which

is sometimes angular in front; the more or less widely separated anterior and inter-

mediate coxe ; the strongly developed basal portion of the prosternum, which overlaps

the front of the mesosternum and is always sulcate down the middle posteriorly; the

broad, flattened, bisinuate, antero-intercoxal portion of the metasternum ; the rounded

outer apical angle of the tibie; and the large, spongy-pubescent, third tarsal joint.

As in Cactophggus, some of the species possess special marks of distinction in the

male-sex, such as the grooved and bluntly serrate under surface of the rostrum, a fringe

of long hairs on the anterior or posterior tibize, a tuft of hairs on the posterior tibie,

hairs on the prosternum or last ventral segment, &c. ‘The body is usually maculate

with rufous or ochreous, but wholly black forms of the same species sometimes occur.

The extremely variable M. sericeus is known to attack sappy trunks of Musaceous

plants and some of the allied forms may have similar habits.

The following table, mainly based on male-characters, will assist in the identification

-of the numerous Central-American members of the genus :—

a, Prosternum in front of coxe, a space on the 5th ventral segment, femora,

and tibiee clothed or fringed with long hairs, and the rostrum angulate

near the tip beneath, inthe ¢, the 5th ventral segment bifasciculate at

apex in the ? ; elytra much widened anteriorly : colour very variable. sericeus, Oliv. f.

6. Prosternum without long hairs in 3.

a’. Body much flattened above; tibiz feebly sinuate within, the posterior

pair fringed with long hairs in ¢.

a’, Rostrum sulcate and crenate beneath in ¢; prothorax and elytra

rufous, spotted or variegated with black. . . . . . . . . dimidiatipennis, Jek.

&?. Rostrum obsoletely sulcate beneath in $3; prothorax and elytra

black, interruptedly lineate with ochreous or ferruginous . . . quadrilineatus, sp. n.

8. Body moderately flattened above; prothorax longer than broad,

sinuously swollen along the outer margin at about the middle, and

trifoveate on the disc posteriorly; tibiz curved, all fringed with ~

* Such as the following species placed under Sphenophorus in the Munich Catalogue :—hemipterus, L., cinna-

momeus, Perty, obsoletus, remoratus, melancholicus, Gyll., ensirostris, Germ., &c. ; also S, signiventris, Kirsch.

+ M. hemipterus (L.) and M. enstrostris (Germ.) also belong to this section.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, Aprid 1910. PP

104 RHYNCHOPHORA.

very short hairs in both sexes ; prothorax and elytra ferruginous,

interruptedly lineate with black . ©. © ee + 6 ee ee polygrammus, Gyll. .

c'. Body somewhat convex above.

c?. Rostrum longer than the prothorax, rather slender, feebly curved ;

prothorax conical.

a’. Elytra each with a very small fulvous spot on the disc, scarcely

diverting the strize; rostrum feebly sulcate and crenulate

beneath, and the anterior tibie fringed with long hairs, in ¢ . biguttatus, sp. n.

b°. Elytra each with two large, oblong, approximate, fulvous spots

on the disc, diverting the strie. [dg unknown.]. . . . . digeminatus, sp. n.

d’. Rostrum not longer than the prothorax.

a’, Elytra much widened anteriorly.

a‘. Prothorax rounded at the sides anteriorly; tibie feebly

sinuate within : species larger.

a’. Elytra each with a rather broad, ante-median, ochreous or

rufous fascia; metasternum much smoother; posterior

tibize fringed with moderately long hairsin f§ . . .°. sellatus, sp. n.

b°. Elytra each with a narrow red median fascia ; metasternum

more closely punctate; posterior tibiz with a small tuft

oflonghairsing. . . 1. 1 ee we ee ee ee fasciatus, Oliv.

b‘. Prothorax subconical; elytra cordate, with a very large,

common, fulvous, saddle-shaped patch extending to near

the apex; tibize curved, the posterior pair fringed with

extremely short hairs: speciessmall . . . . . . . . scutiger, sp. n.

6°. Elytra less widened anteriorly, general shape more oblong.

ce’. Rostrum sharply and deeply sulcate beneath, and the posterior

tibie fringed with short hairs, in ¢: body black . . . . sulcirostris, sp. n.

d‘. Rostrum sulcate, and more or less crenate or serrate, beneath

in ¢; body elongate, rufo-variegate above.

a’. Prothorax almost smooth.

a’. Posterior tibie with a tuft of long curled hairsin ¢ . . eincinnatus, sp. n.

b°. Posterior tibie fringed with long hairsin @ . . . . connexus, sp. n.

6°. Prothorax and under surface closely punctate; anterior

tibie fringed with long hairs in $; pygidium hairy at tip. dasyurus, sp. n.

c’. Prothorax, elytral interstices, and under surface closely,

coarsely punctate; all the tibiz fringed with very short

hairs in both sexes . . . . . . ee ee + ee) Submaculatus, sp. n.

e‘. Rostrum, at most, feebly or obsoletely sulcate, and sometimes

subcrenulate, beneath in ¢.

d°’. Under surface and prothorax smoother.

c’. Under surface sparsely, finely punctate; metasternum

immaculate ; posterior tibie fringed with long or mode-

rately long hairs in ¢*.

* The female only is known of WM. ochreofasciatus and MM. octonotatus, and they may be wrongly placed in

this Table.

METAMASIUS. 105

a’, Prothorax black.

a’. Elytra with a post-basal ochreous fascia . . . . cullizona, Chevr.

6°. Elytra with a submedian narrow ochreous fascia. . ochreofasciatus, sp. n.

ce’. Elytra obliquely rufo-bifasciate on the disc . . . mnudiventris, sp. 0.

6". Prothorax rufo-vittate, the elytra ferruginous, spotted

with black, and also with a common, interrupted,

saddle-shaped, ochreous patch . . . . . . . . scutatus, sp. n.

e’. Under surface sparsely, coarsely punctate; metasternum,

prothorax, and elytra rufo-maculate; posterior tibiz fringed

with extremely short hairs, as in ?; rostrum strongly

compressed . . . woe ee ew ew we) 6maculiventris, sp. n.

f’. Under surface and prothorax closely punctate ; posterior

tibie fringed with extremely short hairs, asin 9? ; prothorax

and elytra usually rufo-maculate.

. Body densely pruinose; pygidium cristate . . hebetatus, Gyll.

7 . Body less densely pruinose ; pygidium (9 ) feebly bie

fasciculate at the tip . . . . . . . . . « « « octonotatus, sp. n.

1. Metamasius sericeus. (Tab. V. figg. 8, 8a, 2, 9, 9a, do, vars.)

Calandra sericea, Oliv. Ent. v. no. 83, p. 84, t. 28. fig. 409*; Latr. in Humb. & Bonpl. Obs. Zool.

i. p. 206, t. 22. fig. 4°. .

Sphenophorus sericeus, Gyll. in Schénh. Gen. Cure. iv. p. 896°; Jacq. Duval, in Sagra’s Hist. fis.,

polit. y nat. de Cuba, Ins. p. 96°.

Metamasius sericeus, Horn, Proc. Am. Phil. Soe. xiii. p. 410°; Lec. op. cit. xv. p. 881°.

Var. Calandra dimidiata, Sturm, Cat. p. 106 (1826) *.

Var. Rhyncophorus carbonarius, Chevr. Col. Mex., Cent. i. fase. 1, no. 20 (June 18383) *.

Sphenophorus carbonarius, Schénh. Gen. Cure. iv. p. 897°; Boh. op. cit. vill. 2, p. 238".

3¢. Rostrum angularly thickened near the apex (as seen in profile) and obsoletely sulcate beneath, the long outer

portion moderately stout and finely punctate; ventral excavation long and deep ; femora and tibie strongly

fulvo-ciliate, the prosternum with a space in front of the acetabula, the anterior and intermediate coxa,

and a large space at the apex of the fifth ventral segment, also clothed with long, erect, fulvous hairs.

2. Rostrum neither thickened near the apex nor sulcate beneath, the long outer portion much more slender

and almost smooth ; ventral excavation shallow, the fifth segment with two small tufts of fulvous hair

at the apex, the femora, tibiz, and prosternum with shorter hairs.

Hab. Norra America, California®® and Arizona ®,— Mexico?§910°; Britis

Honpuras; GuatTemata; Nicaragua; Costa Rica; Panama.—SoutH America? to

Peru?3; AwnTILLes, Cuba4+~‘, Haiti, San Domingo ! 24,

Abundant throughout the warmer parts of Central America. Itis perhaps doubtful

whether UW. sericeus can be retained as distinct from the equally variable M. hemi-

pterus, L. (=ambiquus, decoratus, sacchari, and nigerrimus, Gyll.*) ; but as the latter |

seems to be confined to Tropical South America f (up to as far north as Colombia)

* T have seen the types of these four forms.

+ In the British Museum there are two specimens of it, from the Bowring collection, labelled “ Mexico,”

but this locality requires confirmation.

PP 2

106 RHYNCHOPHORA.

and the Lesser Antilles, it is best to keep the two forms separate. The male-characters

are precisely similar in both of them, and both have a black variety ; but M. hemipterus

has the elytral striae rather coarsely punctate and the elytra themselves usually streaked

with red to the apex, a system of coloration not seen in any of our very long series of

M. sericeus. The following varieties of the present species may be noted :—

a. Rufous or ferruginous, the prothorax with three black stripes, the outer ones sometimes reduced to small

basal spots or altogether wanting, the elytra with the apical haif or more black (sometimes including a

small red spot on the disc), the under surface and legs spotted or variegate with black [sericeus, Oliv. ].

—Southern United States to Peru.

(. Sanguineous, a median stripe on the prothorax, the scutellum, elytra, knees, and part of the under surface,

black, the elytra sometimes with one or two small red spots at or near the base. (Fig. 8.)—Costa Rica

(Cafas Gordas, &c.), Panama.

y. Black, the prothorax with a stripe on each side of the disc (sometimes bifurcate posteriorly), the scutellum,

the base of the elytra, and sometimes one or two small spots on the disc beyond the middle, and at

most a small spot at the base of the femora, red. (Fig. 9.)—Guatemala (Las Mercedes, Pacific slope) ;

Honduras (Puerto Cortez).

8. Black, the elytra sometimes with a red patch at the base [carbonarius, Chevr. |.—Mexico— Nicaragua.

The type of MW. sericeus was from San Domingo, that of M. carbonarius from

Cosamaloapam, Mexico.

2. Metamasius dimidiatipennis. (Tab. V. figg. 10, 10a, ¢.)

Sphenophorus dimidiatipennis, Jekel, Ann. Nat. Hist. (3) U1. p. 859 (1858) ’.

dS. Rostrum about two-thirds the length of the prothorax, curved, moderately stout, almost smooth, shallowly

sulcate and crenate on each side beneath ; ventral depression broad and very shallow, the fifth segment

with a transverse pilose fovea at the apex; femora and tibie finely, densely ciliate, the tibie feebly sinuate

within, the hairs on the posterior pair long; anterior coxee with a small fascicle of short fulvous hairs.

©. Rostrum similar to that of the ¢, but neither sulcate nor crenulate beneath; femora and tibie with

fewer and shorter hairs.

_ Hab. Mexico (Mus. Brit.), Toxpam in Vera Cruz (Sallé); Nicaraaua, Blewfields

(Richmond, in U.S. Nat. Mus.); Costa Rica (U.S. Nat. Mus.), Surubres 250 metres

(Bioiley), Azahar de Cartago (Underwood); Panama, Chiriqui (Zrétsch), Canal Zone

(Jennings, in U.S. Nat. Mus.), Taboga I. (Champion, J. J. Walker).

The type of this species (now in the British Museum) was found by Capt. Kellett

during the voyage of H.M.S. ‘ Herald,’ doubtless at Panama, though the locality

given ! is simply “‘ Pacific shore of Central America.” It is a larger, longer, and more

depressed form than Jf. sericeus. The colour is variable and three forms are

represented amongst the seventeen examples seen :—

a. Black, the prothorax rufous, with three black spots (two basal and one median), the elytra with about

the basal third rufous, a transverse black spot below the shoulder excepted. (Fig. 10.)—Nicaragua,

Costa Rica, Panama.

(. Coloured as in a, but with the elytra in great part rufous, a subhumeral spot, a transverse patch at about

the middle of the suture, and the sides and suture towards the apex black, the rostrum rufous in one

specimen.—H. Mexico.

y- Black, the elytra with the base and a spot at some distance below the shoulder rufous.—Costa Rica.

METAMASIUS. 107

8. Metamasius quadrilineatus, sp.n. (Tab. V. figg. 11, lla, ¢.)

$. Subfusiform, depressed, opaque above, shining beneath ; black, the prothorax with two broad, posteriorly

bifurcate, vittes on the disc (leaving a complete median stripe, a streak on each side of it on the basal

half, and the margins, black), and the elytra with a sharply-defined elongate streak on the fifth interstice

below the base, a much shorter streak on the third interstice beyond the middle, and various narrow

lines on the rest of their surface (that near the suture extending the entire length), ochreous or ferru-

ginous; the under surface with various spots and streaks along the sides and a subtriangular patch on

the middle of the first ventral segment, and the pygidium, femora, and tibie in part, ferruginous.

Rostrum curved, shorter than the prothorax, rather slender, cylindrical, feebly canaliculate beneath,

sparsely, obsoletely punctate, the widened basal portion with a short impressed line, the frontal fovea

small. Prothorax slightly longer than broad, rapidly narrowed from about the middle, the sides parallel

behind, the base feebly bisinuate ; flattened and almost smooth on the disc, sparsely punctured along the

outer margin. Scutellum narrow, elongate-triangular, hollowed down the middle. LElytra considerably

wider than the prothorax, oblong-subcordate, finely punctate-striate, the interstices somewhat convex,

Pygidium sparsely punctate. Beneath sparsely, rather coarsely punctate, the metasternum and ventral

segments 1-4 with a very broad almost smooth space down the middle, the fifth segment transversely

depressed at the apex. Anterior and intermediate coxe with a small tuft of hairs. Femora and tibi

finely ciliate, the posterior tibiz with very long curled hairs at the middle, these becoming shorter

towards the apex.

Length 104, breadth 33-34 millim.

Hab. Mexico, Colonia (Flohr); Guatemata, Purula in Vera Paz (Champion).

Two males, with the markings precisely similar. Separable from all the allied

forms by the lineate markings of the elytra, the third and fifth interstices each with

a very sharply defined ochreous streak.

4, Metamasius polygrammus. (Tab. V. figg. 12, 124, 3.)

Sphenophorus polygrammus, Gyll. in Schénh. Gen. Cure. iv. p. 918 ‘

Subfusiform, pruinose, ferruginous, the prothorax with three vitte on the disc and another on the flanks, the

elytra with numerous interrupted lines, and sometimes a triangular patch on the disc before the middle

(bordered in front and behind by several reddish spots), and the under surface with various streaks and

spots, infuscate or black. Rostrum arcuate, nearly as long as the prothorax, moderately stout, compressed,

canaliculate beneath, sparsely punctate, subcarinate, the abruptly-widened basal portion more coarsely

punctured, that of the 9 with the apical portion subcylindrical and almost smooth. Prothorax longer

than broad, flattened behind and declivous anteriorly, broadly depressed in the middle posteriorly and also

hollowed near the hind angles, sinuously swollen laterally at about the middle and obliquely narrowed

thence to the apex, strongly bisinuate at the base; sparsely, somewhat coarsely punctate. Scutellum

elongate-triangular, narrow. Elytra broad, subcordate, the strie fine and with rather coarse scattered

punctures, the alternate interstices convex and slightly widened. Pygidium sparsely punctate, tumid

and setulose along the middle posteriorly. Beneath sparsely, coarsely punctate; ventral excavation of

the ¢ long, broad, and rather shallow, Tibiz curved.

Length 7-12, breadth 23-43 millim. (d Q.)

Hab. Nicaracua, Chontales (Belt, Janson); Costa Rica, Pozo Azul (Underwood),

San Carlos (Pittier ; U.S. Nat. Mus.) ; Panama, Bugaba ( Champion), Ancon (Jennings,

in U.S. Nat. Mus.).—Ecvavor; Braziu!, Bahia, Rio Janeiro.

Twelve examples, agreeing with others before me from the above-mentioned

localities in Brazil. A very close ally of MZ. melancholicus (Gyll.), but separable

108 RHYNCHOPHORA.

therefrom (when cleaned) by the trifoveate base of the prothorax, and the sinuously

swollen margins of the latter. The sculpture is almost always entirely hidden by a

greasy incrustation. The colour is variable.

5. Metamasius biguttatus, sp. n. (Tab. V. figg. 13, 134, ¢.) |

3. Elongate, subfusiform, broad, flattened and opaque above, black, the elytra each with a small fulvous spot

at the middle of the third interstice. Head rather small, finely punctate, with a deep frontal fovea ;

rostrum feebly curved, as long as the head and prothorax, comparatively slender, closely punctured,

becoming smooth and somewhat tapering towards the tip, obsoletely sulcate and crenulate, and also sub-

angulate near the apex, beneath, the widened basal portion with an impressed line. Prothorax as long

as broad, subconical, deeply bisinuate at the base, broadly depressed on the disc posteriorly, very sparsely,

finely punctate. Scutellum elongate-subtriangular, flattened. Elytra much wider than the prothorax,

oblong-subcordate, finely striate, the striz with scattered punctures, the second and third sinuous at the

middle, the interstices broad and almost flat. Pygidium sparsely punctured. Beneath sparsely punctate,

the ventral excavation shallow. Legs elongate ; anterior femora with a fringe of short, and the anterior

tibie fimbriate with long, hairs; tarsi slender, the third joint very broadly dilated.

Length 11}, breadth 44 millim.

Hab. Guatemaa, Cerro Zunil, 4000 feet, Pacific slope (Champion).

One example. ‘This species may be known by the long and rather slender rostrum,

the conical, basally depressed prothorax, the single small spot at the middle of each

elytron, the widely separated anterior coxe, the strongly ciliate anterior tibie (3 ), and

the broadly dilated third tarsal joint.

6. Metamasius bigeminatus, sp.n. (Tab. V. figg. 14, 144, 2.)

Elongate-rhomboidal, rather narrow, opaque above, black, the elytra each with two large, oblong-oval, sub-

contiguous, fulvous spots on the disc (on the widened portion of the third and fifth interstices) just

beyond the middle, the punctures filled with a brownish incrustation. Rostrum feebly curved, slender,

cylindrical, nearly haif the length of the body, almost smooth, the short, broad, abruptly widened basal

portion closely punctate, the frontal fovea deep. Prothorax conical, about as long as broad, bisinuate

at the base, sparsely, finely punctate, the disc broadly excavate posteriorly. Scutellum elongate-

subtriangular, narrow, flattened. Elytra oblong-subcordate, very finely striate, the strie 2-5 strongly

sinuate at the middle, all with widely-scattered rather coarse punctures, the interstices flat. Pygidium

sparsely punctured, subcarinate towards the tip. Beneath very sparsely, finely punctate. Anterior

coxee widely separated. Legs rather slender.

Length 114, breadth 43 millim. ( 2.)

Hab. Mexico, Toxpam in Vera Cruz (Sal/é).

One specimen. A remarkably distinct form, with two large, oblong, subcontiguous

fulvous spots on the disc of each elytron just beyond the middle and the interstices

widened to make room for them.

7. Metamasius sellatus, sp.n. (Tab. V. figg. 15, 15a, ¢.)

Subelliptic, broad, opaque above, the elytra each with a rather broad, transverse, angulate ochreous or rufous

fascia (sometimes enclosing a small black spot on the third interstice) just before the middle, the fascia

narrowing outwards and nearly reaching the suture and outer margin. Rostrum curved, nearly as long

as the prothorax, moderately stout, gradually widened at the base, obsoletely punctate in the ¢, almost

smooth in the 2, the frontal fovea small. Prothorax about as long as broad, narrowing from near the

base, the latter strongly bisinuate; sparsely punctured along the sides, base, and apex, almost smooth

METAMASIUS., 109

on the disc. Scutellum elongate-triangular, flattened. Elytra broad, subcordate, finely punctate-striate.

Pygidium sparsely punctate, subcristate towards the apex. Beneath shining and very sparsely punctate,

the punctures on the flattened portion of the metasternum extremely minute; first ventral segment

slightly hollowed down the middle in the ¢, flattened in the Q. Prosternum convex and unimpressed

. between the coxe anteriorly, the latter widely separated. Femora with very short scattered hairs

beneath, the tibiee distinctly ciliate, the posterior pair with longer hairs in the ¢.

Length 12-16, breadth 5-64 millim. (¢ 2.)

Hab. Nicaragua, Chontales (Belt); Panama, Tabernilla, Canal zone (Buseck, in U.S.

Nat. Mus.), Caldera I., Portobello Bay (Jennings, in U.S. Nat. Mus.).

Five specimens, varying in the development and colour of the elytral fascia. ‘The

convex, unimpressed intercoxal portion of the prosternum, the very sparsely punctured

metasternum, and the gradually widened basal portion of the rostrum are noteworthy

characters in this insect. The last ventral segment is almost bare in both sexes.

The Tabernilla example was captured in May 1907, and the two from Caldera Island

in April 1908.

8. Metamasius fasciatus. (Tab. V. figg. 16, 164, 3.)

Curculio fasciatus, Oliv. Encycl. Méth. v. p. 474 (1790)'; Fabr. Ent. Syst. i. 2, p. 398°.

Calandra fasciata, Oliv. Ent. v. no. 83, p. 83, t, 11. fig. 186 (Curculio) *; Fabr, Syst. Hleuth. i.

p. 434°. |

Sphenophorus fasciatus, Gemm. & Harold, Cat. Col. viii. p. 2648”.

Subfusiform, moderately broad, opaque above; black, the elytra each with a transverse, somewhat curved,

outwardly widened, sanguineous median fascia extending from the first to the seventh stria, Rostrum

stout, arcuate, about two-thirds the length of the prothorax, feebly punctate, smooth at the tip, shallowly

sulcate beneath, the frontal fovea small. Prothorax a little longer than broad, narrowing from near the

pase, slightly depressed and sparsely punctate on the disc behind, the base strongly bisinuate. Scutellum

triangular, hollowed anteriorly. Elytra much wider than the prothorax, subcordate, finely punctate-

striate, the interstices very minutely punctured down the middle. Pygidium with a short crest at the

tip. Beneath somewhat closely punctate laterally. Prosternum hollowed between the coxe anteriorly.

Femora with a few short minute hairs beneath. ‘Tibia shortly, finely ciliate within.

g. Pygidium convex, very coarsely punctate; ventral excavation long, deep, the fifth segment transversely

depressed and clothed with a few short hairs at the apex; posterior tibiee with an oblique tuft of long

fulvous hairs at about the middle.

©. Pygidium flattened, more finely punctate.

Length 16, breadth 5,9, millim.

Hab. Panama, Volcan de Chiriqui (7rétsch).—? SourH AMERICA.

Two specimens agreeing perfectly with Olivier’s coloured profile-figure of Calandra

fasciata. This species may be known by its subfusiform shape and the narrow,

incomplete, sanguineous median fascia of the elytra. It is more elongate than the

somewhat similarly marked MV. sellatus (which has a more slender rostrum, the pro-

sternum convex between the coxe, and the anterior coxe themselves a little more widely

separated), the metasternum smoother at the sides, and the elytral fascia less developed

and placed (as in M. ochreofasciatus) at a greater distance from the base. This

insect has been quoted as from N. America??5, without any more definite locality.

110 RHYNCHOPHORA.

9, Metamasius scutiger, sp. n. (Jab. V. figg. 17, 17a, ¢.)

Subfusiform, opaque above, black, the elytra with a very large, common, anteriorly-dilated, scutiform, fulvous

patch extending from the base to near the tip (leaving the shoulders, apex, and sides posteriorly,

black), the fifth interstice with a small black spot before the middle, the prothorax with two faint

reddish spots at the base. Head closely punctate, the frontal fovea oblong ; rostrum about as long as

the prothorax, feebly curved, the broad, abruptly-widened basal portion coarsely punctate, the apical

portion rather slender and very sparsely punctured, smooth at the tip. Prothorax as long as broad,

subconical, abruptly constricted in front, the hind angles rounded, the base bisinuate; sparsely punctate,

the disc flattened posteriorly. Scutellum narrow, elongate-triangular. Elytra subcordate, finely striate,

the strie with scattered coarse punctures, the alternate interstices a little wider than the others.

Pygidium rather narrow, rugosely punctate. Beneath very sparsely punctate; first ventral segment

faintly suleate along the middle, Tibie curved externally, fringed with extremely short hairs.

Length 6}, breadth 24 millim. (¢.)

Hab. Panama, Bugaba (Champion).

One specimen, assumed to be a male. A small form, with peculiar elytral markings,

and not very closely allied to any of the other species here enumerated. It has the

anterior and middle coxee widely separated. The prothorax in certain lights appears

to have a denser velvety-black spot on the middle of the disc.

10. Metamasius sulcirostris, sp. n.

3. Oblong-elliptic, opaque above, pruinose, black, the lower part of the flanks of the prothorax (and in one

specimen two very faint parallel vitte on the disc also) rufescent. Rostrum very stout, arcuate, shorter

than the prothorax, broadly, sharply sulcate beneath (the sulcus with an acute median ridge), finely

punctate, the widened basal portion sulcate and rugosely punctured. Prothorax as long as broad,

rounded at the sides anteriorly, deeply bisinuate at the base, somewhat closely punctate laterally and

on the flattened portion of the disc, the rest of the surface with minute scattered punctures. Scutellum

oblong-triangular, hollowed down the middle. Elytra a little wider than the prothorax, subcordate,

finely punctate-striate, the interstices flat. Pygidium sparsely punctate, pilose. Beneath sparsely,

rather coarsely punctate; ventral excavation deep, the fifth segment with a few hairs towards the

apex. Anterior and intermediate coxe with a small tuft of hairs. Femora and tibie finely ciliate,

the tibia somewhat curved.

Length 123-13, breadth 5 millim.

Hab. Guatemata, near the city (Salvin); Nicaracua, Chontales (Belt).

Two males, agreeing precisely in their general structure. This species bears a close

resemblance to Cactophagus validirostris (Gyll.), but may be separated from it by

the narrow, non-sulcate peduncle of the submentum, the less approximate anterior

coxe, the deeply, inferiorly sulcate rostrum (<4 ), the very sparsely and less coarsely

punctured prothorax, the base of which is strongly bisinuate, the longer hairs on the

pygidium, &c. It is possible that more distinctly rufo-maculate forms may occur.

11. Metamasius cincinnatus, sp.n. (Tab. V. figg. 18, 18,0, ¢.)

3. Elongate, fusiform, somewhat convex, opaque above, shining beneath; black, the prothorax and elytra

rufous, the former with a broad posteriorly bifurcate median vitta and a transverse patch on each side

at the base, and the latter with a transverse spot on each side below the shoulder, a common angulate

median fascia (widened inwards), and an oblong patch on the suture at the apex, black. Rostrum

stout, curved, much shorter than the prothorax, almost smooth; sulcate, laterally crenate, and also

angulate at the tip, beneath; the frontal fovea small. Prothorax longer than broad, flattened on the

METAMASIUS. lil

disc, almost impunctate, the base feebly bisinuate. Scutellum elongate-triangular, hollowed in front.

Elytra wider than the prothorax, oblong-subcordate, finely punctate-striate, the interstices each with

an irregular row of excessively minute punctures. Pygidium rather convex, coarsely punctured.

Beneath very sparsely and finely, the abdomen somewhat coarsely, punctate ; ventral excavation long

and shallow. Anterior and intermediate coxe with a small tuft of short hairs. Femora sparsely

pilose beneath, the anterior pair almost bare. Posterior tibie (fig. 186) with a matted tuft of very

long curled fulvous hairs at about the middle and a few finer and shorter hairs between it and the

apex.

Length 134, breadth 43 millim.

Hab. Nicaragua, Chontales (Janson).

One male, somewhat discoloured. Narrower and more convex than MZ. dimidiati-

pennis, the prothorax relatively longer, the posterior tibie with a matted tuft of very

long curled hairs in the male, the fifth ventral segment not foveate in this sex, the

markings of the upper surface different.

2. Metamasius connexus, sp. n. (Tab. V. figg. 19, 194, 3.)

Oblong-oval, rather broad, opaque above; black, the prothorax with a triangular or v-shaped mark at the

base and an oblique stripe on each side of the disc (sometimes connected), and the elytra with a

transverse, common, x-shaped mark at the base, a curved or transverse streak on the disc at a little

beyond the middle (these markings coalescent laterally in one specimen), and sometimes an oblong spot

towards the apex, rufous or fulvous, the mesothoracic side-pieces sometimes rufescent. Rostrum (<¢ )

curved, stout, compressed, shorter than the prothorax, very sparsely, finely punctate above, sulcate, laterally

crenulate, and angulate near the tip beneath, (2) almost smooth above and beneath, and slightly

longer, the frontal fovea small. Prothorax as long as broad, parallel at the sides behind, finely punctured

laterally and at the apex, flattened and almost smooth on the disc. Scutellum elongate-triangular. Elytra

much wider than the prothorax, oblong-subcordate, finely punctate-striate. Pygidium coarsely punctate,

subcristate at the apex. Beneath very sparsely punctured. Prosternum flattened between the coxe in

the $, convex in the 9. Femora with a few minute hairs beneath. Tibi with a fringe of short

hairs.

g. Ventral excavation long and deep, the fifth segment with a transverse sparsely pilose fovea at the tip ;

posterior tibie with a fringe of long hairs.

Length 102-144, breadth 4-5, millim. (¢ Q.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé: 2); GuatemaLa, San Isidro and

Mirandilla, Pacific slope (Champion: ¢ 2).

Three specimens, varying in the extent of the rufous or fulvous markings, though the

general pattern is similar. Very like M. segniventris (Kirsch), but with a differently

formed rostrum, and the posterior tibie strongly ciliate, in the male; the transverse

oblique fascia below the base of the elytra uninterrupted, the prothorax relatively

wider, the prosternum convex between the coxe in the female, the metasternum

immaculate.

13. Metamasius dasyurus, sp. n. (Tab. V. figg. 20, 20a, ¢.)

Elongate, subfusiform, rather narrow, somewhat depressed, pruinose, opaque above; ferruginous, variegated

with black, the markings on the prothorax consisting of a lanciform median vitta, a triangular or elongate-

triangular patch on each side of it at the base, and an elongate patch on the flanks, those on the elytra

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, Aprai 1910. QQ

112 RHYNCHOPHORA.

consisting mainly of two broad, irregular, oblique fascie, which are connected with a narrow sutural

stripe. Head closely punctate; rostrum (<¢ ) strongly arcuate, stout, compressed, much shorter than the

prothorax, abruptly widened, canaliculate, and closely punctured at the base, the long apical portion

sparsely, finely-punctate above, sulcate and crenate on each side beneath, ( 2 ) with the apical portion much

more slender, almost smooth, above and beneath, the frontal fovea rather deep. Prothorax a little

longer than broad, narrowing from about the middle (in one ¢ from Ecuador rounded at the sides and as

broad as the elytra), tubulate in front, feebly bisinuate at the base, somewhat closely punctate, flattened

or depressed on the disc posteriorly. Scutellum elongate-triangular, flattened. Elytra oblong-subcordate,

usually wider than the prothorax, finely punctate-striate, the interstices minutely punctate down the

middle. Pygidium thickly punctate, somewhat convex in the ¢, densely fulvo-pilose at the tip in both

sexes. Beneath sparsely punctate. Anterior and intermediate coxe with a cluster of fulvous hairs.

Var. a. Coloured as in the type, but with the oblique black fascia below the base of the elytra divided into

two spots and the second fascia transverse.

Var. G. Black, the prothorax with a v-shaped mark at the base and an oblique evanescent stripe on each

side, and the elytra with a small spot on the shoulder, another on the disc below the base, and a curved,

angulate, or oblique patch at about the middle, rufous.

Var. y. Black, each elytron with a transverse or oblique spot below the base and an oblique mark at about

the middle (sometimes almost obsolete) rufous, the prothorax sometimes faintly rufo-maculate.

3. Ventral excavation very broad, coarsely, closely punctate, and extending forwards along the whole

length of the metasternum, the fifth segment pilose; anterior and intermediate femora densely, and the

posterior pair very sparsely, fulvo-pilose beneath; anterior tibiee with a dense fringe of long fulvous hairs.

Q. First ventral segment unimpressed ; femora almost bare, the anterior tibiee fringed with very short hairs.

Length 92-14, breadth 3-5 millim. (¢ @.)

Hab. Costa Rica (Van Patten), San Carlos (U.S. Nat. Mus.), Azahar de Cartago

(Underwood); Panama, Bugaba, Volcan de Chiriqui (Champion).—Ecuapor, Paramba

(Rosenberg, in Mus. Brit.).

Numerous examples, the extreme forms occurring in the same localities in both

Costa Rica and Panama. ‘The sexual characters are extremely well marked, the male

being easily recognizable by the stout, inferiorly sulcate, crenate rostrum, the densely

ciliate anterior tibie, &c. The tuft of hair at the apex of the pygidium is present in

both sexes. MM. dasyurus is more elongate than JZ. rimoratus (Gyll.) (the 2 only of

which has been described), and has a more closely punctured prothorax. MW. obsoletus

(Gyll.) (the type of which, a ¢,I have also seen) has the intermediate and posterior

tibie of the male subangularly dilated at about the middle, the prothorax smoother, &c.

14, Metamasius submaculatus, sp.n. (Tab. V. figg. 21, Zla, .)

Sphenophorus submaculatus, Chevr. in Mus. Brit.

Elongate, subfusiform, narrow, flattened above, somewhat shining; black, the prothorax ferruginous, with

a lanciform median vitta on the anterior half and an elongate streak on either side of it at the base

black, the elytra ferruginous, with a triangular or oblique patch near the suture before the middle and

an interrupted submarginal stripe black, the rostrum and legs also in part ferruginous. Head sparsely

punctate, transversely grooved between the eyes; rostrum strongly arcuate, a little shorter than the

prothorax, moderately stout, compressed, abruptly widened near the base, closely punctate throughout,

in the g angulate near the tip, shallowly sulcate, and irregularly serrate beneath, in the 2 sub-

cylindrical, a little more slender, and not serrate beneath. Prothorax much longer than broad, more or

less rounded at the sides, abruptly tubulate in tront, subtruncate at the base; densely, rather coarsely,

punctate, the disc with a shallow oblong depression behind. Scutellum narrow, elongate-triangular,

METAMASIUS. 113

sometimes foveate or hollowed down the middle. Elytra a little wider than the prothorax, crenate-striate,

the interstices flat, closely, coarsely, irregularly uniseriate-punctate. Pygidium flattened, closely

punctured. Beneath densely punctate ; first ventral segment very broadly depressed down the middle in

the §. Tibie with a dense line of extremely short fulvous hairs within.

Var. Black, the markings almost or completely obsolete.

Length 84-103, breadth 3-32 millim. (¢ 2.)

Hab. Nicaracua, Chontales (Belt); Costa Rica, San José (Biolley).—CoLomBia

(Goudot, in Mus. Brit.).

Eight males and three females, six of them with the markings precisely similar. The

rather coarse, dense puncturing of the upper and under surfaces, the inferiorly serrate

and apically angulate rostrum of the male, the almost straight base of the prothorax,

and the widely separated anterior coxe readily distinguish the present species, apart

from its narrow shape and the peculiar markings of the elytra when present.

M. hebetatus is a somewhat nearly allied form.

15. Metamasius callizona. (Tab. V. figg. 22, 22a, 3.)

Sphenophorus cailizona, Chevr. Ann. Soc. Ent. Fr. 1882, p. 578 am

Phyllerythrurus callizona, Chevr. op. cit. 1885, pp. 92, 93”.

Oblong-elliptic, opaque above, black, the elytra with a transverse fulvous fascia (of variable width, not

reaching the suture or outer margin, and narrowing outwards) below the base. Rostrum stout,

arcuate, nearly as long as the prothorax, very sparsely, finely punctate, smooth at the tip, feebly

canaliculate between the points of insertion of the antennw, shallowly sulcate beneath in the ¢, that

of the @ a little smoother and not so stout, the frontal fovea deep. Prothorax as long as broad,

gradually and arcuately narrowing from about the middle, bisinuate at the base; closely, finely punctate

along the sides, apex, and basal margin, almost smooth on the disc. Scutellum elongate-triangular,

hollowed down the middle anteriorly. Elytra much wider than the prothorax, oblong-subcordate,

somewhat coarsely and deeply punctate-striate, the interstices feebly convex. Pygidium sparsely,

coarsely punctate. Beneath closely and rather coarsely punctate, much smoother down the middle, the

ventral excavation of the ¢ very deep and extending forwards along the apical half of the metasternum.

Tibie closely ciliate, the hairs moderately long on the posterior pair in the g, short in the Q.

Length 13-16, breadth 53-61 millim. (d @.)

Hab. Mzxico!?, Toxpam in Vera Cruz (Sallé); Guatemaua, San Juan in Alta Vera

Paz (Champion).

This species resembles Hucactophagus orizabensis in colour, but it is narrower

and more oblong, the metasternum is not protuberant, &c. The insect is scarcely

recognizable from the inaccurate diagnosis *. I have seen four specimens of M. callizona,

including the type, a male.

16. Metamasius ochreofasciatus, sp.n. (Tab. V. figg. 23, 234, 2.)

Elongate-oval, robust, opaque above, black, the elytra each with a narrow, undulate, transverse, ochreous

fascia just beyond the middle (not reaching the suture or outer margin). Rostrum stout, cylindrical,

curved, about two-thirds the length of the prothorax, obsoletely punctate, the frontal fovea rather deep.

* The rostrum is said to be ‘ basi crasso, profunde scisso,’ which must have been an error of observation.

QQ 2

114 RHYNCHOPHORA.

Prothorax a little longer than broad, bisinuate at the base, narrowing from the middle, punctured along

the sides, base, and apex, almost smooth on the disc. Scutellum elongate-triangular, hollowed anteriorly.

Elytra wider than the prothorax, somewhat rapidly narrowing from the rounded humeri, depressed at

the sides below them and also on the disc towards the apex; rather coarsely punctate-striate, the

interstices minutely punctured down the middle. Pygidium flattened, sparsely, coarsely punctate,

fulvo-cristate along the apical half. Beneath somewhat closely punctured, the flattened portion of the

metasternum and first ventral segment almost smooth. Femora with a few very short hairs beneath.

Tibia finely ciliate within.

Length 21, breadth 74 millim. (9.)

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

One specimen. A large, elongate form, with a narrow, incomplete, ochreous fascia

just beyond the middle of each elytron (formed by small confluent spots), the prothorax

comparatively long and almost smooth on the disc, the tibie finely ciliate. ‘This

species resembles MW. fasciatus, but it is longer and more robust, the scutellum is much

longer, the elytra are less widened anteriorly and more coarsely punctate-striate, the

rostrum and legs are stouter, &c.

17. Metamasius nudiventris, sp.n. (Tab. V. figg. 24, 24a, 2.)

Elongate-oval, rather convex, opaque above; black, the elytra each with a curved, oblique, transverse fascia

at about one-third from the base and an irregular, transverse, subtriangular or T-shaped mark on the

disc beyond the middle (neither reaching the suture), a minute spot on the shoulder beneath, and

sometimes one or two others along the basal margin, rufous. Rostrum nearly as long as the prothorax,

moderately stout, curved, subcylindrical, shining, sparsely punctate in the ¢ , almost smooth in the ?, the

widened basal portion faintly canaliculate, the frontal fovea small. Prothorax about as long as broad,

parallel at the sides posteriorly, feebly bisinuate at the base, very sparsely, finely punctate, flattened on

the disc behind. Scutellum elongate-triangular. Elytra oblong-subcordate, much wider than the

prothorax, finely punctate-striate. Pygidium coarsely punctured. Beneath very sparsely punctate.

Femora with a few very short hairs beneath. Tibia finely ciliate.

g. Ventral excavation long and shallow, the fifth segment with a few short scattered hairs at the tip, as in

the 2; posterior tibie fringed with moderately long hairs.

Length 103-18, breadth 3,®,—5 millim. (¢ 9.)

' Hab. Nicaraeua (Sallé), Chontales ( Belt).

Two males and five females. Extremely like the dark form of WM. ensirostris (Germ.)

(=dispar, Gyll.), but easily separable therefrom by the absence of the dense cluster

of long hairs on the last ventral segment in the male, and by the non-pilose pro-

sternum, &c., in this sex; the female, too, is without the two tufts of hair at the tip

of the abdomen. WM. bisbisignatus (Gyll.) has a longer and flatter prothorax, with an

elongate punctured area on the disc at the base, and the male-characters as in

M. ensirostris. In the present species the tibie are finely ciliate in both sexes.

18. Metamasius scutatus, sp.n. (Tab. V. figg. 25, 25a, 3.)

Oblong-elliptic, rather broad, opaque above, shining beneath; black, the prothorax with two broad,

posteriorly bifurcate, ferruginous vittee on the disc (leaving a lanciform median stripe, a curved streak on

each side of it on the basal half, and the margins, black); the elytra ferruginous, each with five black

spots arranged in two oblique rows across the disc (one below the shoulder, transverse, one near the

METAMASIUS. 115

middle of the suture, oblong-semicircular, one at the sides beyond the middle, large and triangular, and a

small one on the third and fifth interstices towards the apex), the angulate space between them ochreous ;

the under surface (including a large transverse space near the base of the abdomen), femora, and tibise

maculated with ferr ginous. Rostrum curved, a little shorter than the prothorax, moderately stout,

sparsely, very finely punctate, obsoletely canaliculate beneath, the widened basal portion with an

impressed line, the frontal fovea small. Prothorax as long as broad, obliquely narrowing from about

the middle, feebly bisinuate at the base, flattened on the disc behind, very sparsely punctate. Scutellum

elongate-triangular, narrow, almost flat. Elytra much wider than the prothorax, somewhat coarsely

punctate-striate, the interstices feebly convex. Pygidium rather convex, coarsely punctate. Beneath

sparsely, rather coarsely punctate, much smoother down the middle, the first ventral segment with a

shallow median excavation. Femora (the anterior pair excepted) and tibia finely ciliate, the posterior

tibize with longer hairs,

Length 103, breadth 4 millim.

Hab. Costa Rica, Boca de Limon (Pittier, in Mus. Brit.).

One specimen, found in March 1897. Broader and less depressed than VM. quadri-

lineatus, the markings of the elytra very different. The ferruginous colour of a

portion of the elytral surface does not seem to be due to discoloration, and the

ochreous space on the disc forms a large, common, shield-shaped patch enclosing

two black spots.

19. Metamasius maculiventris, sp.n. (Tab. V. figg. 26, 26a, 9.)

Hlongate-oval, rather convex, opaque above; black, the prothorax with an oblique stripe on each side, and

sometimes a V-shaped mark at the base, the elytra with a small spot at the base of the fifth interstice

and another at the shoulders beneath (sometimes connected), a transverse patch on the disc before the

middle and a larger one beyond it (sometimes connected externally and sometimes reduced to small spots

or streaks}, and the metasternum with a large spot on each side, sanguineous or ferruginous. Rostrum

stout, strongly compressed, greatly curved, shorter than the prothorax, very sparsely, finely punctate,

more or less angulate at the apex beneath in the ¢, the abruptly-widened basal portion canaliculate

and somewhat coarsely punctured, the frontal fovea deep. Prothorax about as long as broad, compressed

at the sides behind the middle and arcuately narrowed anteriorly, feebly bisinuate at the base, sparsely,

finely punctate, flattened on the disc behind. Scutellum elongate-triangular. Elytra oblong-subcordate,

much wider than the prothorax, finely punctate-striate, the interstices minutely punctate down the

middle. Pygidium sparsely punctate, flattened, subcarinate in the ¢, sparsely pilose at the tip. Beneath

sparsely punctate. Anterior coxe with a small tuft of very short fulvous hairs. Femora and tibie

feebly ciliate in both sexes, the hairs short.

$. Ventral excavation shallow, extending forwards for nearly the whole length of the metasternum.

Length 12-16, breadth 43-6 millim. (¢ 9.)

Hab. Nicaracua, Chontales (Belt, Janson: 3 2); Costa Rica, Tuis (Pittier: @ ).

Five specimens, varying in the extent of the rufous markings of the upper surface.

Nearly related to M. signiventris (Kirsch), from Ecuador (the type, ¢, of which I

have seen *), but with a much stouter, compressed rostrum, which is angulate at the

apex beneath in the male, the fifth ventral segment without a very large densely

fulvo-pilose space in this sex, the prothorax relatively broader, &c. The laterally

rufo-vittate prothorax, the stout, compressed rostrum, the spotted metasternum, &c.,

separate M. maculiventris from M. nudiventris and VM. rimoratus.

* There is a Q of it from Macas, Ecuador, in the Fry collection at the British Museum.

116 RHYNCHOPHORA.

20. Metamasius hebetatus. (Tab. V. figg. 27, 274, ¢.)

Sphenophorus hebetatus, Gyll. in Schénh. Gen. Cure. iv. p. 919 *; Boh. op. cit. vill. 2, p. 243°.

Elongate-oval, densely olivaceo- or brownish-grey-pruinose (when fresh), black, the prothorax sometimes

ferruginous, except down the middle and along the sides, or with an oblique rufous stripe on each side

anteriorly ; the elytra ferruginous, with a common large transverse patch before the middle, a patch below

the shoulder, and rather more than the apical third black, the ferruginous portion sometimes reduced to a

large laterally-dilated C-shaped patch on the disc of each elytron or altogether wanting; the legs and

under surface sometimes rufo-maculate. Rostrum arcuate, fully as long as the prothorax, rather

slender, compressed, closely punctured at the base, obsoletely punctate in its outer half, the abruptly-

widened basal portion striato-punctate and canaliculate; that of the Q with the long apical portion

more slender, subcylindrical, and almost smooth. Prothorax flattened on the disc, sparsely, rather

coarsely punctate, feebly bisinuate at the base. Scutellum elongate-triangular, flat. Elytra finely

punctate-striate, the interstices somewhat convex, uniseriate-punctate. Pygidium cristate. Beneath

coarsely punctate; metasternum and first two ventral segments broadly excavate down the middle in

the ¢, flattened in the Q. Anterior and intermediate cox each with a small tuft of fulvous hairs.

Femora finely pubescent beneath. Tibize with a dense fringe of very short hairs within. Third tarsal

joint comparatively small, about twice as wide as the apex of the second.

Length 93-11}, breadth 32-4, millim. (¢ 2.)

Hab. Nicaracua, Chontales (Richardson); Costa Rica (Pittier, in Mus. Brit.),

Talamanca, 200 metres (Biolley), San Carlos (U.S. Nat. Mus.); Panama, Bugaba,

Volcan de Chiriqui (Champion).—CotomBia (coll. Fry), Antioquia’; VENEZUELA;

Ecuapor, Paramba (Rosenberg), Nanegal (Dolby-Tyler).

Numerous examples, agreeing with the type (2) communicated by Dr. Sjostedt.

The markings of the elytra in this insect are almost hidden by the dense brownish-grey

pruinosity, and a fresh description is therefore given from the long series before me,

some of the specimens from Ecuador showing the general pattern much better than the

type from Antioquia. MM. hebetatus is not unlike the eastern ‘‘ Sphenophorus” leprosus,

Fahr., but the latter has a stout, inferiorly serrate rostrum in the male, a much narrower

scutellum, the elytra differently sculptured, the anterior coxe more approximate, &c.

21. Metamasius octonotatus, sp. n. (Tab. V. figg. 28, 28a, 2.)

Elongate, subfusiform, rather narrow, flattened, alutaceous, and opaque above; ferruginous, the prothorax

with an incomplete median vitta, a small oblong streak near the outer margin towards the base, and a

stripe on the flanks, black; the elytra each with an oblique subtriangular spot near the suture before

the middle and an interrupted submarginal stripe (formed by three oblong streaks, the subapical one

indistinct) black; the scutellum, knees, and under surface black, the sides of the meso- and metasternum

and of the abdomen rufo-maculate. Rostrum moderately stout, strongly arcuate, a little shorter than

the prothorax, the widened basal portion closely punctate, the apical portion somewhat compressed and

almost smooth. Prothorax a little longer than broad, obliquely narrowed anteriorly, the sides parallel

behind, the base subtruncate; rather closely, irregularly punctate (the punctures here and there much

coarser and clustered into denser patches), the disc depressed in the middle near the base. Scutellum

elongate-triangular, slightly hollowed down the centre. Elytra oblong-subcordate, finely punctate-striate,

the interstices almost impunctate. Pygidium finely punctured, with two small tufts of fulvous hair at

the tip. Beneath shallowly punctate, the interspaces alutaceous.

Length 10-101, breadth 32-33 millim. (9.)

Hab. Panama, Volcan de Chiriqui (Champion).

METAMASIUS.—HOMALOSTYLUS. 117

Two females. Very like M. submaculatus, and similarly coloured, but with the

prothorax not so coarsely and more unequally punctured, the elytral interstices almost

impunctate, the rostrum (2) strongly arcuate, the upper surface opaque. The widely

separated intermediate coxe distinguish WM. octonotatus from Rhodobenus.

HOMALOSTYLUS.

Homalostylus, Chevrolat, Ann. Soc. Ent. Fr. 1885, p. 287.

The type of this genus is Sphenophorus latiscapus, Kirsch, from Colombia. Four

species are now added from within our limits, one of them, H. dentirostris, having the

autenne formed as in Homalostylus in the male, and as in Rhodobenus in the female.

Nevertheless, it is convenient to retain Chevrolat’s genus as distinct for the present.

The essential characters are:—Antennal scape more or less dilated throughout the

greater part of its length, at least in the male; peduncle of the submentum narrow,,

flattened or compressed ; anterior cox subcontiguous ; metasternum somewhat tumid

and extending conically forwards between the narrowly separated middle coxe; third

tarsal joint broad, spongy-pubescent beneath.

1. Homalostylus nigrofasciatus, sp.n. (Tab. V. figg. 29, 29a, ¢ ; 30, 2.)

Elongate, subfusiform, opaque above; black, pruinose, the fine scattered punctures each surrounded by a

_ larger conspicuous cinereous spot, the spots arranged in a single series along each elytral interstice, the

elytra also with two more or less distinct, transverse, velvety-black fasciee—one about the middle and

the other towards the apex. Rostrum stout, about as long as the prothorax, strongly and abruptly

arcuate from the rather short, broadly widened, rugose basal portion; the apical portion compressed,

closely punctate and carinate at the base above, becoming gradually smoother towards the tip, and_

shallowly sulcate, laterally crenate, and angulate near the apex beneath, in the 2 smooth and angulate

nearer the tip; the frontal fovea small. Antennal scape broadly dilated, rounded within, sinuate

without, distinctly wider than the club in the g, a little narrower in the 9. Prothorax slightly

longer than broad, obliquely narrowing from about the middle, feebly bisinuate at the base, transversely:

excavate. on the disc posteriorly, very sparsely, finely punctate. Scutellum long, narrow. LElytra

a little wider than the prothorax, oblong, very finely punctate-striate, the interstices flat, each with a

scattered series of minute punctures. Pygidium long, subconical, rather convex, sparsely punctate,

setulose at the tip. Beneath very sparsely, finely punctate; ventral excavation of the ¢ extending

forwards on to the metasternum, the first segment with a short cariniform prominence in the middle

towards the base in this sex. Femora with scattered short hairs beneath. Tibie closely fringed with

short hairs, the posterior pair broadly dilated, rounded externally and feebly sinuate within.

Length 10-123, breadth 2,%,-4 millim. (¢ 2.)

Hab. Costa Rica, Rio Sucio (Rogers: 3), Guaitil de Pirris, Pacific slope, 800 metres

(Biolley: 3); Panama, Volcan de Chiriqui (Champion: @ )..

The description is taken from three males and one female. More elongate than.

the Colombian H. latiscapus (Kirsch) (the type, 2, of which I have seen), and very

differently coloured; the posterior tibiz broadly dilated; the antennal scape wider ;

the rostrum of the male strongly crenate and angulate near the tip beneath, the first

ventral segment with a short cariniform prominence in this sex, as in Rhodobenus

maculifer.

118 RHYNCHOPHORA.

2. Homalostylus dentirostris, sp.n. (Tab. V. figg. 31, 31a, 3; 32, 2.)

g. Elongate, subfusiform, opaque above, pruinose, black, the rostrum and legs obscure ferruginous, the

prothorax with two indistinct reddish vitte on the disc and another on each flank, and the elytra with a

faint, strongly sinuate, lighter stripe on the disc (extending to about the apical third of the suture, and

partly surrounding a common, large, heart-shaped, black patch which extends up the suture to the base).

Rostrum about as long as the prothorax, stout, abruptly bowed from the rather elongate, broad, coarsely

punctate, basal portion, which is acutely, triangularly dilated on each side beneath, the apical portion

strongly compressed and sparsely punctate to near the tip. Antennal scape about twice as long ‘as the

funiculus, a little narrower than the club, rounded within. Prothorax much longer than broad, nearly

as long as the elytra, parallel-sided in its basal half, obliquely narrowed anteriorly, broadly depressed

on the disc towards the base, the latter feebly bisinuate; sparsely, finely punctate. Scutellum long,

narrow. Elytra a little wider than the prothorax, finely punctate-striate, the interstices obsoletely

uniseriate-punctate. Pygidium conical, coarsely punctate, setulose at the tip. Beneath sparsely punctate.

First ventral segment flattened down the middle and with a short, compressed, cariniform prominence

towards the base. Femora ciliate beneath. Tibi curved, the intermediate and posterior pairs dilated

and sinuous within.

Rostrum with the basal portion shorter, unarmed at the sides, the apical portion almost smooth, sub-

angulate near the tip beneath; antennal scape much narrower, gradually widened outwards; prothorax

a little less elongate; the tibie subequal in width; the sinuous reddish stripe on the elytra more

distinct.

Length 103—11,;, breadth 3} millim.

Hab. Mexico, Santecomapan in Vera Cruz (Sallé).

Two specimens, both in bad condition, the male a typical Homalostylus, the female

with the antenne formed very much as in Rhodobenus. The male has the rostrum

acutely, triangularly dilated on each side near the base beneath, the prothorax

unusually elongate, and the first ventral segment plicate in the middle; the antennal

scape is much narrower than in //. nigrofasciatus.

3. Homalostylus incertus, sp. n. (Tab. V. figg. 33, 334, 3.)

_ Elongate, subfusiform, robust, opaque above, black, plumbeo-pruinose, the punctures each surrounded by a

larger or smaller greyish-brown dot, the elytra with two common, transverse, velvety-black fascia—one

just before the middle, the other (less distinct) towards the apex. Rostrum stout, compressed, a little

shorter than the prothorax, curved, bowed at the tip, the moderately widened basal portion coarsely

punctured and narrowly sulcate towards the frontal fovea, the apical portion sparsely punctate and

without prominence at the apex beneath; antennal scape moderately long, about as wide as the anterior

tibia in its outer half. Prothorax as long as broad, narrowed and subtubulate in front, feebly bisinuate

at the base, unimpressed on the disc, somewhat closely punctate. Scutellum oblong-triangular, small.

Elytra long, a little wider than the prothorax, gradually narrowed from the rounded humeri, finely

punctate-striate, the interstices flat, each with an irregular row of punctures, which are all surrounded

by a larger or smaller greyish dot. Pygidium long, subconical, setulose at the tip. Beneath sparsely,

.tather coarsely punctate; ventral excavation broad, reaching forwards to near the narrow, conical, inter-

coxal process of the metasternum. Femora fringed with moderately long, and the tibis with short, hairs.

Length 123, breadth 4 millim. (¢.)

Hab. Mexico, Toxpam in Vera Cruz (Sal/é).

One male. A narrow, elongate, robust form, resembling Rhodobenus auriculatus,

R. fortirostris, and others with nigro-bifasciate elytra, but easily distinguishable there-

from by the slightly dilated scape of the antenna.

HOMALOSTYLUS.—RHODOBENUS. 119

4. Homalostylus subcylindricus, sp. n. (‘Tab. V. figg. 34, 344, 3.)

Elongate, rather narrow, somewhat cylindrical, opaque, black more or less variegated with fusco-ferruginous

(the ¢ ferruginous above, with the prothorax black at the sides and down the middle, and the elytra

each with four black patches—three, oblique, along the sides, and one, subtriangular, on the disc near the

suture, at about the middle) ; pruinose, the scattered punctures each surrounded by a rather large, rounded,

brownish-cinereous spot, the spots along the suture of the elytra distant one from another. *Rostrum

feebly curved, stout, somewhat compressed, very little widened basally, coarsely, rather closely punctate

to near the tip, in the ¢ much shorter than the prothorax, in the @ considerably longer and with the

apex smoother. Eyes narrow. Antennal scape about as broad as the anterior tibia in both sexes,

subequal in width throughout. Prothorax about as long as broad, gradually narrowed anteriorly, feebly

bisinuate at the base, sparsely punctate. Scutellum small, depressed, triangular. _Elytra oblong, very

little wider than the prothorax, finely punctate-striate, the interstices each with a row of scattered

punctures. Pygidium conical, sparsely punctate. Ventral excavation of the ¢ deep, extending from the

front of the first segment to far beyond the middle of the metasternum. Prosternum considerably

developed at the base. Femora with a row of scattered hairs beneath.

Length 10-12, breadth 3-34 millim. (¢ 2.)

Hab. Guatemaa, Duefias (Champion: 3), Trece Aguas in Alta Vera Paz (U.S. Wat.

Mus.: 2).

‘Two specimens, evidently sexes of the same species, which is distinguishable by the

moderately dilated antennal scape in both sexes, the feebly dilated basal portion of

the rostrum, and the subcylindrical form of the body. H. subcylindricus superficially

resembles Rhodobenus varieguttatus and its allies.

RHODOBZENUS.

Rhodobenus, Leconte, Proc. Am. Phil, Soc. xv. p. 332 (1876); Chevrolat, Ann. Soc. Ent. Fr.

1885, p. 275.

This genus, based upon Curculio 13-punctatus, Ul., and Sphenophorus pustulosus,

Gyll., both common N.-American insects, has its headquarters within our limits, whence

about fifty species are now recorded. Its chief characters are :—The narrow peduncle

of the submentum, usually with a tooth or compressed prominence in front, or at the

base, at least in the 2; the gradually widened antennal scape; the subcontiguous

anterior cox; the narrowly separated intermediate coxe; the subconical antero-

intercoxal process of the metasternum; the unarmed outer apical angle of the tibie ;

the broad, spongy-pubescent third tarsal joint; and the more or less velvety, pruinose,

or spotted upper surface of the body. ‘The femora and tibie are similarly ciliate in

the two sexes; but the males may generally be known by the hollowed first ventral

segment (the depression sometimes with a compressed tubercle or short ridge in the

middle or towards the anterior margin, or broadly extending forwards along the meta-

sternum), and the females by the angular or dentiform prominence on the peduncle of

the submentum (this being usually less conspicuous or wanting in the male, except in

R. mesomelas and a few other species) and the smoother (and often longer) apical portion

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, Aprid 1910. RR

120 RHYNCHOPHORA.

of the rostrum. In the male of #. auriculatus the prothorax has a rectangular or ear-

like prominence on each side in front, and in the female of #. subcristatus the median

portion of the rostrum is closely setulose above. In R&. dentifer and R. adspersus the

prosternum has two flattened, subcontiguous, tuberculiform prominences in the middle

at the base, these becoming evanescent in the nearly related forms. £&. 13-punctatus

and its allies are extremely variable in colour and it is difficult to define them satis-

factorily ; these and various other forms have a more or less distinct tooth or prominence

on each side of the rostrum near the base (as seen in profile), formed by the transverse

tumid space behind the antennal scrobes *.

The members of this genus are mostly found, so far as at present recorded, on the

flowers of Composite, Asclepiadaceew, &c., sometimes occurring gregariously on the

same bush, f. sanguineus, 13-punctatus, cinctus, pustulosus, and stigmaticus being

characteristic Central-American forms.

The species inhabiting our region may be grouped thus :—

a. Posterior femora not extending beyond the tip of the pygidium.

a’. Body black; the elytra with a sanguineous fascia at the base, followed by

a broad black band, the apex bluish-grey-pruinose . . . . . . . Species 1.

6'. Body black, olivaceo- or cinereo-pruinose, the punctures not indicated by

cinereous spots ft.

a’. Prothorax and elytra without definite markings.

a’. Prothorax and elytra transversely plicate. . . . . . . . . . Species 2.

6°. Prothorax only with a transverse depression towards the base . . . Species 3.

b°. Prothorax and elytra with sharply-defined velvety-black spots.

c’. The spots large. 2 2. 2... we ee ee ee ee ee) «Species 4.

d’. The spots smaller (sometimes obsolete). . . . . . . . . . . Species 5, 6.

c’. Body black, sometimes rufo-variegate (the elytra rarely ferruginous), the

punctures on the prothorax (except in R. guttatus) and elytra each

surrounded or indicated by a more or less distinct cinereous or brownish

spot.

ec’. Elytra subequally tessellated with rather large brownish spots . . . . Species 7,8.

a. Elytra with one or two darker fascie . . . . . 1... . . Species 9-16.

*, Elytra with velvety-black spots; antennal scape much longer than the

funiculus . . . 1. we ee ee ee ee we ee ee) Species 17, 18.

f’. Elytra with a common (sometimes interrupted) v-shaped mark on the

disc, and some other markings at the shoulder and near the apex,

velvety-black ; antennal scape and funiculus subequal in length . . . Species 19-22.

g. Elytra without velvety-black spots or definite dark transverse fasciz

(sometimes rufo-variegate, or with a black patch on the disc or one or

* Hence Chevrolat’s specific name corniculatus.

T RB. maculifer would be almost equally well placed in this section.

RHODOBZANUS. 121

two faint darker fascie, rarely entirely ferruginous), the cinereous

spots (except in R. arcuatus) somewhat regularly distributed.

e*. Prothorax with scattered cinereous spots.

a‘, Rostrum short; antennal scape and funiculus subequal in length . Species 23, 24.

6‘. Rostrum longer; antennal scape longer than the funiculus . . . Species 25-35.

f*. Prothorax uniformly flavo-cinereo-pruinose; elytra with scattered

cinereous spots, those along the suture smaller and closely packed . Species 36.

d'. Body black or ferruginous, variegate, the prothorax (the median vitta

excepted) and elytra sometimes entirely rufescent (wholly black in certain

vars. of R. pulchellus and R. 13-punctatus), the punctures without definite

cinereous spots *.

h?. Prothorax at the sides and the elytra on the disc (in fresh specimens)

more or less lineate or reticulate with cinereous or white, the outer

black vittze on the prothorax placed at some distance from the margin. Species 37.

a?, Prothorax and elytra with velvety-black stripes, the sides of the former .

lineate, and the disc of the latter sharply maculate, with white . . . Species 38.

j’. Prothorax variable in colour; elytra broadly (or narrowly) rufo-vittate

onthedisc . 2... ee ew ee ee ee ee ee ee) Species 39.

k?, Prothorax and elytra sanguineous or ferruginous, the former with a

black median line.

g’. Elytraimmaculate . . 2... 1 1. ee ew ee ee ee + Species 40.

h®. Elytra each with a black spot on the disc . . . . . . + + + + Species 41.

@. Prothorax rufous, with three black vittse (one median, the others mar-

ginal); elytra maculate . . . . . . 1. ee + ee + + + Species 42-45.

m’. Prothorax rufous, with one or two submarginal spots and a median vitta

(sometimes reduced to one or two spots) black; elytra (except in dark

vars.) maculate . . . 1 ee ee ee ee ee ew ee + Species 46-50.

b. Posterior femora extending beyond the tip of the pygidium ; body fusiform,

ferruginous, the prothorax with a median line, and the elytra each with a

narrow oblique submedian fascia, black. . «© 2. 2 1 ee ee ee Species 51.

1. Rhodobenus mesomelas, sp. n. (Tab. VI. figg. 1, la, 3.)

Elongate, subfusiform, robust, opaque above, black, pruinose; the elytra with a transverse fascia of

variable width at the base sanguineous or ferruginous, the median third velvety-black, and the apical

portion bluish-grey, like the prothorax, legs, and under surface. Rostrum very stout, about as long as

the prothorax, strongly bowed from the moderately widened, rather long, closely punctate, sulcate basal

portion, the apical portion almost smooth in the Q and finely punctate in the d, the long sulcus above

continuous with the deep frontal fovea, the peduncle of the submentum with a stout tooth-like prominence

in front in the g, this being subobsolete in the 9. Prothorax subconical, about as long as broad,

deeply bisinuate at the base, broadly excavate on the disc posteriorly, sparsely, finely punctate. Scutellum

large, triangular, flattened. Elytra moderately elongate, somewhat rapidly narrowing from the rounded

humeri, finely punctate-striate, the strie apparently deeper and more coarsely punctured on the rufous basal

portion of the surface, the interstices obsoletely uniseriate-punctate, somewhat convex at the base.

Pygidium coarsely punctate, and with a prominent, setulose, median ridge. Beneath very sparsely and

* Faintly cinereous in fresh examples of R. cariniventris and L. nigropictus,

y p

RR 2

122 RHYNCHOPHORA.

finely, the fifth ventral segment coarsely, punctate, the latter transversely depressed in the middle at the

apex in the ¢, the ventral depression shallow in both sexes, but conspicuous in the ¢.

Length 16-19, breadth 6-7 millim. (d 2.)

Hab. Mexico, Santecomapan in Vera Cruz (Sallé) ; Nicaragua, Chontales (Janson) ;

Costa Rica, Boca de Limon (Pittier); Panama, Bugaba, Volcan de Chiriqui (Champion),

Chiriqui (Zrétsch).—Ecuavor (coll. Fry).

Seven specimens. This insect resembles Phyllerythrurus sanguinolentus in colour,

but it is much narrower; the rostrum is smoother and abruptly bowed from the

stouter basal portion; the peduncle of the submentum is narrow and not sulcate ;

the middle coxe are more narrowly separated; the elytra have the median third

velvety-black, the apical portion bluish-grey-pruinose, and the fourth interstice undi-

lated at the base; the pygidium is strongly carinate, &c.

2. Rhodobeenus plicatus, sp.n. (Tab. VI. figg. 2, 2a, 2.)

Elongate, robust, opaque, black, plumbeo-pruinose. Rostrum exceedingly stout, regularly arcuate, about as

long as the prothorax, closely, coarsely punctate to near the tip, pilose and shallowly sulcate beneath, the

moderately-widened basal portion feebly sulcate up to the frontal fovea, the apical portion more sparsely

punctured in the 2, the peduncle of the submentum in this sex with a longer and more acute prominence

than in the ¢. Prothorax as long as broad, rapidly narrowed from about the middle, abruptly constricted

and tubulate in front, feebly bisinuate at the base; sparsely, finely punctate, the disc transversely depressed

on each side before the middle and with a larger, deeper excavation in the centre towards the base.

Scutellum elongate-triangular, narrow. LElytra moderately long, gradually narrowing from the rounded

humeri, with three transverse depressions on the outer part of the disc—before, at, and just beyond the

middle; finely punctate-striate, the interstices faintly uniseriate-punctate. Pygidium sparsely punctate,

clothed with bristly hairs at the tip. Metasternum flattened, the broad ventral excavation of the ¢

reaching forwards to beyond the middle. Legs stout; femora and tibiew fringed with short hairs, the

tibie broad, feebly sinuate within.

Length 14-17, breadth 48-6 millim. (¢ Q.)

Hab. Costa Rica, La Palma (Biolley ; Maxon, in U.S. Nat. Mus.), Carrillo (Biolley).

Thirteen examples. Very similar to the immaculate form of &. stigmaticus, but

separable therefrom by the abruptiy tubulate anterior portion of the prothorax, the

disc of which is trifoveate, and the uneven elytra.

3. Rhodobenus olivaceus, sp. n. (Tab. VI. figg. 3, 3a, 2.)

Very like the immaculate form of R. stigmaticus (infra); the pruinosity of the surface uniformly cinereo-

olivaceous, the prothorax immaculate, the elytra sometimes slightly darker in the places occupied by the

black spots in R. stigmaticus (at the shoulder, below it, near the suture before the middle, and on the

outer part of the disc near the apex); the rostrum with the basal portion comparatively short, tumid on

each side above the points of insertion of the antenne, and abruptly bowed downwards from this place,

the apical portion compressed, very sparsely punctate laterally towards the base in the ¢ and almost

smooth in the Q, the tooth-like prominence at the tip of the peduncle a little larger in the 2 than in

the g, the scrobes rapidly descending; ventral excavation of the ¢ long and shallow, the fifth segment

slightly depressed or subfoveate at the apex; the intermediate cox more narrowly separated ; the

metasternum somewhat tumid anteriorly and with the intercoxal process conical.

Length 9$-134, breadth 31-44 millim. (¢ 9.)

fab. Panama, Bugaba, Caldera, Volcan de Chiriqui (Champion), Chiriqui (Trétsch).

RHODOBENUS. 125

Eighteen specimens. Distinguishable from the immaculate forms of RB. stigmaticus

by the rostrum being abruptly bowed and compressed from the comparatively short,

broad basal portion, which is tumid on each side anteriorly, and (as seen from above)

appears subdentate beneath the base of the antenna, owing to the position of the

rapidly descending scrobes.

4, Rhodobenus nawradi. (Tab. VI. figg. 4, 4a, ¢, var.)

Sphenophorus nawradi, Kirsch, Berl. ent. Zeitschr. 1869, p. 233°.

Cactophagus nawradi, Chevr. Ann. Soc. Ent. Fr. 1882, p. 5802.

Hab. Costa Rica, San Carlos (U.S. Nat. Mus.).— Cotomsia2, Bogota!; Ecuapor

(Buckley), Cachabé (Rosenberg).

The single example from Costa Rica (fig. 4) differs from Kirsch’s type (kindly

communicated by Dr. Heller), and from others before me from Colombia and Ecuador,

in baving the median and apical velvety-black patches on the elytra united into two

broad fascie. £. nawradi is a large, bluish-grey-pruinose form, with sharply-defined

-velvety-black markings—three on the prothorax (a large oblong patch on the disc,

sometimes wanting, and a small spot near each hind angle) and three on each elytron

(a spot on the shoulder, a very large, transverse, inwardly-widened patch on the disc

before the middle, sometimes coalescent with the one on the opposite elytron at the

suture, and a large transverse or oblique patch near the apex). The rostrum is very stout,

compressed, strongly arcuate, flattened at the tip, pilose beneath, and with the peduncle

of the submentum (as seen in profile) angularly projecting at its base and apex in both

sexes, the apical portion a little smoother in the female than in the male. The

-pygidium is hairy at the tip. The femora and tibie are fringed with short hairs.

The length varies from 133-20 millim.

5. Rhodobenus stigmaticus. (Tab. VI. figg. 5, 5a, 3.)

_Sphenophorus stigmaticus, Fahr. in Schénh. Gen. Cure. viii. 2, p. 244°.

Cactophagus stigmaticollis [sic], Chevr.* Ann. Soc. Ent. Fr. 1882, p. 579’.

Prothorax with a triangular spot on the disc (often wanting), and sometimes a faint streak near the hind

angles, black; the elytra each with four sharply-defined black spots—one, large, just below the shoulder,

a smaller one, oblique or transverse, some distance lower down, a large one, subtriangular or oblique,

near the suture before the middle (sometimes confluent with the one on the opposite elytron), and one,

oblique, near the outer margin near the apex. Pygidium thickly clothed with bristly hairs at the tip.

3. Rostrum very stout, arcuate, about as long as the prothorax, closely, coarsely punctate to near the tip,

feebly grooved, pilose, and subcrenulate beneath, the basal portion moderately canaliculate and widened,

the narrow peduncle of the submentum with a tooth at the base and an angular prominence in front ;

ventral excavation broad, shallow.

* Faust (Stett. ent. Zeit. 1893, p. 149) has already noted this incorrect citation of Chevrolat, which refers

to Sitophilus stigmaticollis, Gyll., from the Ile de France.

124 RHYNCHOPHORA.

9. Rostrum with the apical portion a little longer and more sparsely punctate, the tooth at the base of the

peduncle larger.

Length 104-16, breadth 34-6} millim.

Var. The spots on the prothorax and elytra indistinct or obsolete, the pruinosity of the rest of the surface

darker, olivaceous or plumbeous.

Cactophagus stigmaticollis, var. cuneatus, Chevr. loc. cit.*.

Hab. Mexico? (coll. Sommer!; Mus. Brit.), Playa Vicente, Orizaba, Toxpam

(Sallé), Atoyac (H. H. Smith), Cordova (nab, in U.S. Nat. Mus.), Teapa (LHége) ;

British Honpuras, Rio Sarstoon (Blancaneaux) ; GuatEMALA, San Juan in Vera Paz

(Champion); Nicaragua, Chontales (Belt, Janson, Richardson); Costa Rica (Van

Patten), Savanillas de Pirris, Pozo Azul (Underwood), La Palma, Carrillo (Biolley), Tuis

(Pittier), Caché (Rogers), Tucurrique, San Carlos, Zent, Port Limon (U.S. Nat. Mus.) ;

Panama, Volcan de Chiriqui (Champion).

A variable species, and separable from the closely allied R. melanurus (Kirsch) and

fi. quadripunctatus (Chevr.), the types of all of which I have seen, by the more finely

punctured upper surface, the longer rostrum, and the non-coalescent transverse subapical

black spots on the elytra, the general pruinosity uniformly coloured and uninterrupted

by whitish dots. The elytra (when seen denuded) are finely uniseriate-punctate down

each interstice, and the prothorax, which is more or less excavate on the disc, is

impressed with similar small scattered punctures. Some of the Costa Rican examples

are labelled as having been found on a species of Piper.

6. Rhodobeenus subcristatus, sp. n. (Tab. VI. figg. 6, 6a, 2.)

Subfusiform, opaque above, black, pruinose; the elytra each with four, more or less distinct, velvety-black

patches—one on the shoulder, faint, one, large and triangular, near the suture before the middle, one,

small and oblique, in a line with it on the outer margin, and one, large and transverse, on the outer part of

the disc near the apex, those on the disc sometimes coalescent with the others on the opposite elytron.

Rostrum stout, slightly longer than the prothorax, abruptly bowed from the short, broad, coarsely

punctured basal portion, which is tumid on each side anteriorly, shallowly sulcate and crenulate beneath

in the g ; the compressed apical portion carinate, and also coarsely punctate to about the middle, smoother

at the sides in the 2, and in this sex thickly set with short, semierect, fulvous, bristly hairs along the

basal half above; the peduncle of the submentum also with a small prominence in front in the 9.

Antennal scape about one-half longer than the funiculus, the latter pruinose. Prothorax about as long

as broad, obliquely narrowed anteriorly, transversely excavate on the disc posteriorly, very sparsely

punctate. Scutellum narrow. Elytra very finely punctate-striate, the interstices flat and obsoletely

uniseriate-punctate. Pygidium setulose at the tip. Ventral excavation of the ¢ shallow, the fifth

segment shallowly foveate at the apex in this sex.

Length 11-18, breadth 33-44 millim. (¢ 2.)

Hab. Nicaraeua (Belt: ¢); Costa Rica, San Carlos, Turrialba (U.S. Nat. Mus.:

¢ 2), Pozo Azul (Underwood: ¢ ).

Two females and three (abraded) males. This insect is related to R. stigmaticus,

but it has the rostrum more abruptly bowed, and (at least in one sex) closely set above

with short bristly hairs along the basal half of the compressed, carinate apical portion,

RHODOBZAENUS. 125

and the velvety-black patches on the elytra are nearly as large as in R. nawradi. The

males are all in bad condition and they want the bristly hairs on the rostrum. It is

therefore doubtful at present whether this character is peculiar to the female sex, the

contrary being the case in Rhynchophorus palmarum.

7. Rhodobeenus tessellatus, sp. n. (Tab. VI. figg. 7, 7a, 2.)

Q. Very like R. interruptus (infra), but with the depressed brownish spots on the elytra longer and more

equally distributed (showing no tendency to become coalescent into fasciw), those on the interstices large

throughout, transverse or rounded, and more or less confluent with the much smaller spots along the

strie; the spots on the prothorax closely placed, the two foves on the disc obsolete; the peduncle of

the submentum with a more or less prominent tooth at the base; the legs stout.

Length 17-191, breadth 64-72 millim.

Hab. Guatemata, Cerro Zunil, Pacific slope 4000 feet (Champion).

Four examples, precisely similar, except that in one of them the dentiform prominence

at the base of the peduncle of submentum is smaller than in the others.

8. Rhodobeenus saginatus, sp.n. (Tab. VI. figg. 8, 8a, ¢.)

Subelliptic, broad, robust, opaque, black, the depressions of the rather uneven surface filled with a brownish

incrustation, the large spots thus formed around the punctures on the prothorax and elytra here and

there confluent and giving an irregular tessellated appearance to their surface. Rostrum arcuate, a little

shorter than the prothorax, very stout, somewhat closely punctate to near the tip, the basal portion

moderately widened, the peduncle of the submentum with a small tubercle in front in the Q. Antenne

stout, the funiculus pruinose. Prothorax nearly as long as broad, rounded at the sides anteriorly,

moderately sinuate at the base; sparsely, rather coarsely punctate, the disc uneven and with one or two

distinct fovese on each side about midway between the base and apex. Scutellum triangular, depressed.

Elytra much wider than the prothorax, oblong-subcordate, comparatively short; finely punctate-striate,

the interstices each with a row of scattered punctures, the very shallow, rounded, incrustate depressions

surrounding most of them as wide as the interstice itself. Pygidium sparsely punctate, setulose.

Beneath sparsely, coarsely punctured; ventral excavation of the ¢ shallow. Legs robust; femora

fringed with moderately long, and the dilated tibiee with short, hairs. ,

Length 133-15, breadth 54-63 millim. (d 9.)

Hab. Guatremaa, Cerro Zunil and Duefias, 4000-5000 feet (Champion).

Two specimens, both from the Pacific slope. Less elongate than R. tessellatus, the

prothorax and elytra more uneven and the brownish tessellation irregularly distributed,

the prothorax distinctly bifoveate on the disc, the intermediate coxee less approximate.

Broader and more robust than the Mexican R. pinguts, the upper surface more uneven,

the incrustation not condensed into stripes or bands.

9. Rhodobeenus interruptus, sp. n. (Tab. VI. figg. 9, 9a, 2.)

Oblong, rather broad, robust, opaque, black, the depressions and the umbilicate punctures of the upper and

under surfaces filled with a brown or greyish-brown incrustation, the rather large spots thus formed

more or less condensed on the elytra into two transverse fascie (one before, the other beyond the middle),

the fascis separated and followed by a darker space. Rostrum (¢) stout, considerably shorter than the

126 RHYNCHOPHORA.

prothorax, arcuate, the basal portion broad, sinuate at the sides, narrowly suleate and coarsely, irregu-

larly seriate-punctate above, the apical portion much smoother, unarmed beneath, ( 2) less curved, the

apical portion more slender and almost impunctate, the peduncle of the submentum in this sex with a

prominent tooth at the base. Antenne stout, pruinose. Prothorax a little broader than long, narrow

and somewhat abruptly constricted at the apex, the sides strongly rounded anteriorly and subparallel at

the base, the latter feebly bisinuate, coarsely, closely punctate, the punctures here and there confluent,

the disc shallowly bifoveate before the middle. Scutellum triangular, small, depressed. Elytra rapidly

narrowing from the rounded humeri, transversely depressed before and beyond the middle; finely punctate-

striate, the interstices with an irregular series of coarse, scattered, shallow punctures. Pygidium broad,

subconical, sparsely punctate, tumid down the middle posteriorly, and closely set with erect, bristly,

blackish hairs at the tip. Beneath sparsely, coarsely punctate ; first ventral segment slightly hollowed

in the g. Legs stout; femora sparsely fringed with rather long, and the tibiz densely set with short,

blackish hairs in both sexes, the intermediate and posterior tibiew sinuate within.

Length 17-22, breadth 63-84 millim. (¢ 9.)

Hab. Costa Rica (Van Patten), Rio Sucio, Caché, Irazu (Rogers), Tuis 500 metres

(Pittier), Estrella de Cartago 1500 metres (Biolley), Azahar de Cartago (Underwood) ;

Panama, Volcan de Chiriqui 2500-4000 feet (Champion).

Twenty-seven specimens, thirteen of which are from Chiriqui. A large, robust,

oblong form, with the greyish vestiture on the elytra clustered into two transverse

fasciee, which are separated and followed by a more sparsely clothed (7. e. with smaller

spots) blacker space. The elytra are uneven, as in Ff. plicatus.

10. Rhodobenus dentifer, sp. n. (Tab. VI. fige. 10, 10a, 2.)

2. Elongate, subfusiform, robust, opaque, black, the depressions and the umbilicate punctures of the upper

and under surfaces filled with a dense pale brown incrustation, the elytra with a more sparsely spotted

blackish median fascia. Head coarsely punctate; rostrum arcuate, shorter than the prothorax, stout,

becoming much thicker towards the base, coarsely punctate to about the middle and almost smooth thence

to the tip, the short, broad basal portion sinuate at the sides and sulcate above, the peduncle of the

submentum armed towards the apex with a stout, curved tooth. Prothorax a little longer than broad,

obliquely narrowing anteriorly, abruptly constricted and tubulate in front, very feebly sinuate at the

base; the surface uneven, transversely depressed on each side near the base, and somewhat closely and

asymmetrically set with coarse, rounded, umbilicate punctures. Scutellum oblong-triangular, rather

small. LHlytra oblong, a little wider than the prothorax, finely punctate-striate, the interstices flat and

set with numerous irregularly distributed, rather large, rounded, umbilicate depressions, which become

more scattered across the middle. Pygidium somewhat convex, long, narrow, punctate and setulose.

Beneath closely, coarsely punctate. Prosternum with two flattened, tuberculiform prominences behind

the cox. Legs stout; femora and tibiae closely ciliate, the tibiae broad, curved, feebly sinuate within.

Length 183, breadth 63 millim.

Hab. Costa Rica, La Palma 1600 metres (Biolley).

One specimen. Narrower than &. interruptus; the prothorax longer than broad,

abruptly constricted in front, without fovee on the disc before the middle; the

elytra less widened anteriorly; the pygidium longer and narrower; the prosternum

bituberculate at the base; the peduncle of the submentum (¢ ) armed with a pro-

minent curved tooth towards the apex.

RHODOBENUS. (127

11. Rhodobeenus auriculatus. (Tab. VI. figg. 11, lla, 6, ¢; 12, 2.)

3. Cactophagus auriculatus, Chevr. Ann. Soc. Ent. Fr. 1882, p. 580’.

¢. Prothorax quadrate, the anterior angles rectangularly dilated or (as in the type) with a stout, ear-like,

concave prominence ; rostrum lamellate on each side inferiorly for some distance beyond the points of

insertion of the antenns, closely punctate laterally, the peduncle of the submentum with a compressed

angulate prominence at the base.

Q. Prothorax rounded at the sides anteriorly; rostrum longer and smoother, not lamellate laterally, the

peduncle of the submentum with a stout, blunt tooth at the base.

Hab. Mexico, Toxpam and Cosamaloapan in Vera Cruz (Sallé: 3 2), Chiapas *

(Chevrolat: 3); Guaremana, Coban in Alta Vera Paz (Conradt: 2); Nicaragua,

Chontales (Belt: ¢); Costa Rica, Turrialba (U.S. Nat. Mus.: ).

I have seen nine examples of this species, two only of which (including the type)

are of the male sex. &. auriculatus is very like R. nawradi, but may be separated

from it by the relatively broader unimpressed prothorax, with less sinuate base, the

small scutellum, the much longer and more compressed rostrum of the female, and the

peculiar rostral and prothoracic characters of the male. ‘The upper surface is bluish-

-grey-pruinose, and sprinkled with whitish dots (which indicate the position of the

rather coarse scattered punctures, those of the elytral interstices being much larger

than those of the strive), the elytra with two broad, suturally interrupted, velvety-black

fasciee, one median, the other subapical. The rostrum is gradually widened towards

the base, and the femora and tibie are closely fimbriate with short hairs, in both

sexes; the prominent, subconical pygidium is also closely set with long bristly hairs at

the tip; and the ventral depression of the male is very shallow. The length varies

from 1643-23 mm.

12. Rhodobzenus fortirostris, sp. n. (Tab. VI. figg. 13, 134, ¢.)

Oblong-elliptic, rather broad, opaque, black, brownish- or plumbeo-pruinose, the scattered punctures each

surrounded by a rounded, pale brown spot, the elytra with two more or less distinct, common, velvety-

black, transverse fascia—one median, widened towards the suture, the other subapical. Rostrum (¢ )

barely as long as the prothorax, stout, compressed, and (as seen in profile) greatly thickened towards

the base and strongly arcuate above, coarsely closely punctate to near the tip, (2) straighter, smoother,

and less thickened basally, the peduncle of the submentum with a short tooth at the base in this sex.

Antenne stout, the funiculus pruinose. Prothorax about as long as broad, rounded at the sides

anteriorly and feebly constricted in front (in one ¢ from Toxpam with a small angular prominence on

each side just behind the subapical constriction), feebly bisinuate at the base ; rather coarsely, somewhat

closely punctate. Scutellum triangular. Elytra finely punctate-striate, the interstices rather coarsely

uniseriate-punctate. Pygidium sparsely punctured, clothed with bristly hairs at the tip. Ventral

excavation of the ¢ shallow. Femora and tibie fringed with short hairs,

Length 10-16, breadth 34-63 millim. (¢ 2.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé: ¢ 9); Guaremana, Purula in Vera

Paz (Champion: ¢ ).

Six males and one female, varying greatly in size, one only of the males (fig. 13)

with a small angular prominence at the sides of the prothorax near the apex, the

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, April 1910. SS

128 RHYNCHOPHORA.

species thus showing an affinity with 2. auriculatus, which has similarly fasciate

elytra; but the latter is more elongate than R. fortirostris and has a longer, conical

pygidium, a differently-formed rostrum in both sexes, &c. ‘The strongly arcuate,

powerful rostrum of the male, the finer puncturing of the surface, the less elongate

shape, and smaller size separate R. fortirostris from R. interruptus.

13. Rhodobenus biundulatus, sp. n. (Tab. VI. figg. 14, 14a, ¢.)

Elongate, subfusiform, opaque above, black, pruinose, the somewhat closely placed punctures each surrounded

by a denser, rounded, brownish-cinereous spot, the elytra with two angulate fascie (one before, the

other just beyond the middle, the broad intervening space appearing blacker than the rest of the surface)

formed by a similarly-coloured incrustation. Rostrum shorter than the prothorax, stout, abruptly bowed

from the moderately widened, narrowly sulcate basal portion, closely punctate to near the tip, the

peduncle of the submentum angulate or with a minute prominence in front, the rather broad, outwardly-

widened antennal scape nearly reaching the apex. Prothorax slightly longer than broad, abruptly and

obliquely narrowed anteriorly and somewhat compressed at the sides towards the base, the base itself

feebly bisinuate, the disc transversely excavate posteriorly ; moderately closely punctate. Scutellum

elongate-triangular, narrow, hollowed down the middle. Elytra much wider than the prothorax,

narrowed from the rounded humeri, transversely depressed below the base and beyond the middle ;

finely punctate-striate, the interstices each with a row of scattered rather coarse punctures. Pygidium

conical, pilose at the tip. First ventral segment of the ¢ obsoletely grooved down the middle. Femora

fringed beneath with scattered hairs.

Length 114-124, breadth 4-41 millim. (¢ @.)

Hab. Mexico (Sallé, Flohr), Misantla in Vera Cruz (Hdge).

Four specimens, the one with a faintly grooved first ventral segment assumed to be

a male. Distinguished by the two angulate cinereous elytral fascie, which are separated

by a blackish space; the excavate, anteriorly constricted prothorax; and the com-

paratively short, stout rostrum. The elytra are uneven, as in the larger and more

robust R. plicatus. | .

14. Rhodobeenus tenuiscapus, sp.n. (Tab. VI. figg. 15, 15a, ¢.)

Elongate, subfusiform, opaque above, black, greyish-pruinose, the somewhat closely-placed punctures each

surrounded by a denser brownish-cinereous dot, the elytra with a complete, rather broad, more or less

distinct black fascia just before the middle. Rostrum stout, about as long as the prothorax, abruptly bowed

inwards from the broad, closely punctate, narrowly sulcate basal portion, the apical portion compressed,

sparsely punctate in the d, and a little longer and almost smooth in the 92, angulate towards the tip

beneath (as seen in profile) in both sexes, the peduncle of the submentum with 4 blunt tooth in front

in the 2. Scape of the antenne long and slender, thickened towards the apex. Prothorax longer than

broad, conical, feebly bisinuate at the base, rather sparsely punctate. Scutellum elongate-triangular.

Elytra long, much wider than the prothorax, narrowing from the base, finely punctate-striate, the

interstices each with a row of rather coarse scattered punctures. Pygidium large, subconical, rounded

at the tip, sparsely punctate. Beneath very sparsely punctured; ventral excavation of the g broad and .

deep, extending far forwards along the metasternum, the corresponding space slightly hollowed in the @.

Legs elongate; femora fringed with long scattered hairs beneath.

Length 103-15, breadth 33-51 millim. (¢ 9.)

Hab. Cosa Rica, Irazu (Rogers), Azahar de Cartago (Underwood).

Three inales and one female, varying in size and in the sculpture of the prothorax.

RHODOBANUS. 129

Very like Homalostylus nigrofasciatus, but separable therefrom by the slender, apically

thickened antennal scape, the non-crenulate rostrum of the male, the non-excavate

prothorax, &c.

15. Rhodobeenus pinguis, (Tab. VI. figg. 16, 16a, ¢.)

Rhodobenus pinguis, Chevr. Ann. Soc. Ent. Fr. 1885, p. 283°.

Broad, black, above and beneath sometimes rufo-variegate, the shallow depressions and punctures of the surface

each filled with a brownish-cinereous incrustation, the larger rounded spots thus formed more or less

condensed into two broad vittee on the disc of the prothorax and two irregular transverse fascie on

the elytra (one before, the other beyond the middle), the space between the fascize in great part black.

Rostrum stout, strongly arcuate, the apical portion smoother in the 2 thanin the ¢ and with an angular

prominence near the tip beneath. Ventral excavation of the ¢ broad and rather shallow.

Length 12-134, breadth 5-53 millim. (d 9.)

Hab. Mexico! (Truqui), Cuernavaca (C. C. Deam, in U.S. Nat. Mus.), Juquila

(Sallé), Tehuantepec (Mus. Brit.).

I have seen eleven examples of this species, including the type (¢ ), and these show

scarcely any variation. 2. pinguis may be described asa broad, robust form of the

variable R. pustulosus with the large intermixed greyish spots on the elytra condensed

into two fascie and the space between them in great part black.

16. Rhodobznus confusus. (Tab. VI. figg. 17,174, ¢.)

Rhodobenus confusus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 285°.

3. Rostrum shorter than the prothorax, abruptly bent inwards from the widened basal portion, closely

punctate to near the tip, the peduncle of the submentum angulate or with an inconspicuous prominence

in front; ventral excavation narrow, almost obsolete.

@. Rostrum with the apical portion smoother and a little longer, the peduncle of the submentum sharply

dentate in front.

Length 9-11, breadth 34-34 millim.

Hab. Mexico (Truqui; Mus. Brit.; Flohr), Toxpam (Sallé'), Jalapa, Cerro de

Palmas (Hoge).

Apparently not rare in Eastern Mexico. This is a species somewhat resembling

R. pustulosus, with two broad, transverse, cinereous fasciz on the elytra (one below the

base, the other beyond the middle) separated by a still broader black space, upon

which the cinereous dots along the interstices are more or less conspicuous. The tooth

on the peduncle of the submentum of the female is long and prominent, when the insect

is viewed in profile. Amongst the seventeen specimens before me, some are obscure

ferruginous maculate with black ; the female appears to be commoner than the male.

17. Rhodobeenus maculifer. (Tab. VI. figg. 18, 184, 4, 3.)

Sphenophorus maculifer, Fahr. in Schénh. Gen. Cure. vii. 2, p. 243 "; Chevr. Ann. Soc. Ent. Fr.

1885, p. 1112.

Rhodobenus centromaculatus, Chevr. loc. cit. pp. 276, 280°.

SS 2

130 RHYNCHOPHORA.

Subfusiform, rather narrow, opaque above, varying in colour from black to ferruginous, with the prothorax

nigro-trivittate and the elytra black in the spaces occupied by the velvety spots, plumbeo-pruinose, the

scattered fine punctures each surrounded with a small cinereous dot, the elytra each with three sharply-

defined, large, velvety-black spots—one just below the shoulder, one near the suture before the middle,

and one, transverse, on the outer part of the disc towards the apex. Rostrum abruptly bowed downward

from the short, broad, coarsely punctured basal portion, the latter tumid on each side anteriorly, the

apical portion strongly compressed, almost smooth at the sides in the 9 and sparsely punctate basally

in the ¢, the peduncle of the submentum with a small prominence in front in the Q. Antennal scape

about twice as long as the funiculus. Prothorax as long as, or a little longer than, broad, obliquely

narrowed in front, transversely excavate on the disc posteriorly, very sparsely, finely punctate.

Pygidium subconical, pilose at the tip. Ventral excavation of the ¢ broad, the first segment with a

small compressed tubercle in the middle in this sex (fig. 180), the fifth often with a shallow fovea.

Metasternum becoming tumid towards the narrow, conical, intercoxal process.

Length 8-12, breadth 23-33 millim. (¢ @.)

fab. Mexico (coll. Sommer! ; Mus. Brit.), Toxpam, Playa Vicente, and Sante-

comapan in Vera Cruz (Sal/é), Atoyac, Teapa (H. H. Smith), Juquila (Hége) ;

GuATEMALA, Cubilguitz, San Gerénimo, Purula, Panima, Sabo, and San Juan in Vera

Paz (Champion), Trece Aguas (U.S. Nat. Mus.).—? Sour America, Cayenne 2.

Found in numbers in various places on the Atlantic slope of Southern Mexico and

Guatemala ; the locality quoted by Chevrolat for R. centromaculatus, Cayenne 2, must

have been due to some mistake in labelling: I have seen his type and also that of

“ahreus, and they are absolutely similar. ‘This species is easily separable from

ft. stigmaticus by the laterally tumid antero-basal portion of the rostrum (which is

formed asin &. olivaceus and R. subcristatus) and the longer scape to the antenne.

The light-coloured examples have a purplish tint. The smoother, non-cristate rostrum,

the presence of a small compressed tubercle on the first ventral segment of the male,

and the sharply-defined large velvety-black spots on the elytra separate R. maculifer

from £&. subcristatus. In one abraded reddish example only (?immature), from Sabo,

the elytral spots are obsolete.

18. Rhodobznus sexguttatus, sp.n. (Tab. VI. figg. 19, 19a, ¢.)

Moderately elongate, obscure rufous variegated with black, the black markings on the prothorax condensed

into five incomplete stripes (the median one not reaching the base, the submarginal ones abbreviated

anteriorly, and the one on each flank oblique), the elytra each with three large velvety-black spots (one

at the shoulder, one on the disc, triangular or subquadrate, somewhat distant from the suture, at about

one-third from the base, and one, still larger, near the apex) and a smaller indistinct blackish spot at

about the middle of the outer margin; the rest of the surface cinereo-pruinose, the punctures each

surrounded by a rather large rounded whitish or pale brown spot. Rostrum stout, regularly arcuate, in

the ¢ a little shorter than the prothorax and closely coarsely punctate to near the tip, in the 2 smoother

and slightly longer, the basal portion moderately widened, the peduncle of the submentum angulate

anteriorly, very narrow, and compressed. Prothorax about as long as broad, obliquely narrowed

anteriorly, feebly bisinuate at the base; sparsely, rather coarsely punctate, transversely depressed on the

disc posteriorly. Scutellum elongate-subtriangular, narrow. Llytra finely punctate-striate, the inter-

stices uniseriate-punctate. Pygidium sparsely punctate, clothed with bristly fulvous hairs at the tip.

Ventral excavation of the ¢ shallow. Femora fringed with long, the tibise with short, hairs.

Length 10-113, breadth 34-4 millim. (3 Q.)

RHODOBANUS. 131

Hab. Mexico (Mus. Brit.), Catemaco, Toxpam, Santecomapan (Sallé), Misantla

({Hége).

Seven specimens, the localities enumerated being all in Vera Cruz. This species

resembles &. maculifer, Fahr. (= centromaculatus, Chevr.), but it has the rostrum

subcylindrical and less swollen on each side towards the base, the scape shorter, the

spot on the disc of each elytron placed a little nearer the one at the shoulder (and

therefore more distant from the suture), and the metasternum somewhat flattened

anteriorly. From the Colombian &. quadripunctatus, the present insect may be

known by its narrower form, the subcylindrical, more slender rostrum, the different

arrangement of the velvety-black spots on the elytra, and the less thickened legs.

19. Rhodobenus crassipes, sp.n. (Tab. VI. figg. 20, 20a, 3.)

3. Subelliptic, robust, opaque, black, closely cinereo-pruinose, the scattered punctures on the prothorax

and those along each elytral interstice each surrounded by a denser cinereous dot, the elytra with a

common, large, v-shaped patch at about the middle, a complete, outwardly-widened, subapical fascia,

and a spot on the shoulder, velvety-black or brownish-black, the prothorax with indications of a

darker lanciform median vitta and an interrupted stripe on each side of the disc. Rostrum about as

long as the prothorax, very stout, moderately curved, and strongly inflexed, sparsely, finely punctate,

bare at the apex, setulose and shallowly sulcate beneath, the peduncle of the submentum rounded at the

tip, the widened basal portion canaliculate. Antenne stout, pruinose throughout, the funiculus as long

as the scape, its outer joints strongly transverse. Prothorax broader than long, the sides rounded ante-

riorly and parallel at the base, the base deeply bisinuate; sparsely, finely punctate, the disc with a very

shallow foveiform depression on each side at about the middle. Scutellum small, concave, oblong-

subtriangular. Elytra finely punctate-striate, the interstices broad, flat, each with a row of small,

scattered, conspicuous punctures. Pygidium sparsely punctate, setulose at the tip. Beneath very

sparsely, finely punctate ; ventral depression broad, extending forwards to beyond the middle of the

metasternum. Legs stout, comparatively short ; femora fringed with rather long, the tibiz with short,

hairs ; third tarsal joint moderately large, spongy-pubescent in its outer half beneath.

Length 104-114, breadth 4—42 millim.

Hab. Panama, Bugaba (Champion).

Three examples, one coated with a brownish incrustation. Very near the Colombian

R. (Cactophagus) 4-punctatus, Chevr., and the Peruvian R. (Sphenophorus) melanurus,

Kirsch (the types of both of which I have seen), but differing from these insects in

having a large, common, v-shaped, velvety-black or dark patch on the disc of the

elytra.

20. Rhodobenus v-nigrum, sp.n. (Tab. VI. figg. 21, 21a, ¢.)

Somewhat fusiform, moderately elongate, robust, opaque, black, closely cinereo-pruinose, the scattered

punctures on the prothorax, elytral interstices, flanks, and femora each surrounded by a larger or smaller,

denser, cinereous dot, the prothorax with a lanciform median vitta and a space along the sides indeter-

minately darker; the elytra with a common, large, v-shaped patch at about the middle, an interrupted

subapical fascia, an oblong patch at the shoulders, and the sutural region for some distance below the

base, velvety-brownish-black. Rostrum very stout, abruptly curved from the broader basal portion,

bowed at the tip in the dQ, finely punctate, setulose and shallowly sulcate beneath, the pedunele of the

132 RHYNCHOPHORA.

submentum with a dentiform prominence at the base and apex in the 2, these prominences wanting in

the ¢. Funiculus pruinose, stout, about as long as the scape, the outer joints strongly transverse.

Prothorax broader than long, sparsely punctate. Scutellum oblong-subtriangular. Elytra comparatively

short, obliquely narrowed posteriorly, finely punctate-striate, the interstices each with a row of scattered

punctures, which are indicated by a larger or smaller spot. Pygidium subconical, sparsely punctate,

setulose atthe tip. Ventral excavation of the gd very broad and extending forwards. Legs stout ;

femora fringed with rather long, the tibize with short, hairs. ;

Length 94-94, breadth 34-32 millim. (¢ 9.)

Hab. Nicaraaua, Chontales (Janson).

One pair. This is the Nicaraguan representative of 2. crassipes, differing from that

‘insect in its somewhat fusiform shape and the more mottled upper surface. The

common v-shaped dark patch on the elytra is greatly developed in both species. A

much larger unarmed allied form from Ecuador is contained in the Fry collection.

21. Rhodobenus nigrosignatus, sp.n. (Tab. VI. figg. 22, 22a, ¢.)

Subfusiform, narrow, opaque above, ferruginous variegated with black, the black markings on the prothorax

condensed into three narrow incomplete vitta on the disc (the central one sometimes wider and lanciform),

and those on the elytra to the spaces covered by the velvety patches ; cinereo-pruinose, the punctures

each surrounded by a larger or smaller, denser, cinereous dot, the elytra each with three sharply-defined,

subtriangular, oblique, velvety-black patches—one at the shoulder, one on the disc before the middle

(these two usually coalescent), and one on the outer part of the dise towards the apex,—the prothorax

also with a more or less distinct, lanciform, velvety-black median streak. Rostrum very stout, feebly

curved, abruptly bowed from the widened basal portion, shorter than the prothorax, closely punctate,

smoother at the tip in the 2, shallowly sulcate and setulose beneath, the peduncle of the submentum

compressed and subangulate at the base in the 2, rounded in the g. Antennal scape much widened

towards the tip. Prothorax as long as broad, subcylindrical, constricted in front, feebly bisinuate at the

base, transversely depressed on the disc posteriorly; sparsely, irregularly punctate. Scutellum long,

narrow. Elytra oblong, transversely depressed at the base and beyond the middle, finely punctate-

striate, the interstices each with a row of widely scattered punctures. Pygidium conical, sparsely

punctate, setulose at the tip. Ventral excavation of the ¢ very shallow. Tibiz somewhat curved,

fringed with extremely short hairs, the femora with longer scattered hairs.

Length 53-83, breadth 19-3 millim. (d 9.)

Hab. Guatemana, San Juan in Alta Vera Paz, Las Mercedes, Cerro Zunil, Zapote

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

Thirteen examples. A remarkably distinct form, varying greatly in size and toa

certain extent in the development of the sharply-defined velvety-black markings on the

elytra, those on the disc being sometimes united at the suture and forming a common,

v-shaped patch as in #. v-nigrum and &. crassipes. The elytral surface is depressed

on the disc before and between the black markings, the latter thus becoming very

conspicuous.

22. Rhodobeenus cylindricollis, sp.n. (Tab. VI. figg. 23, 23 a.)

Very like R. nigrosignatus. Piceous, brownish-cinereo-pruinose, the punctures on the elytral interstices each

surrounded by a denser cinereous dot; the prothorax with a narrow lanciform median streak, and the

RHODOBANUS. 133

elytra with a common, large, v- or heart-shaped patch before the middle, an oblique triangular patch

at the shoulder, and a large rounded patch on the outer part of the disc towards the apex, velvety-black.

Rostrum very stout, coarsely punctate to the tip. Antennal scape very little longer than the funiculus.

Prothorax slightly longer than broad, subcylindrical, constricted just beyond the middle and at the apex,

and obliquely narrowed at the base, the base itself subtruncate; closely impressed with coarse umbilicate

punctures. Elytra very little longer than the prothorax, the interstices 3,5, and 7 here and there

somewhat convex, the scattered punctures on all of them conspicuous and the cinecreous incrustation

surrounding some of them also raised.

Length 5-61, breadth 13-21 millim. (? 2.)

Hab. Mexico, Cuernavaca in Morelos (Deam, in U.S. Nat. Mus.).

Two specimens. Readily distinguishable from the southern R. nigrosignatus by the

basally narrowed prothorax, the prothorax itself coarsely umbilicate-punctate, and the

relatively shorter and more uneven elytra. The first ventral segment is unimpressed.

23. Rhodobzenus brevirostris, sp. n. (Tab. VI. figg. 24, 24 a, 3.)

Elongate, subfusiform, opaque above, black, sometimes variegated with ferruginous (the Q ferruginous above,

with the prothorax nigro-trivittate and the elytra each with an indeterminate black patch on the disc

before the middle) ; pruinose, the scattered punctures each surrounded by a larger or smaller, rounded,

cinereous or yellowish-cinereous spot. Rostrum stout, feebly curved, in the ¢ very little more than

half the length of the prothorax, slightly longer in the 2, sparsely punctate, smooth and shining at the

tip, unarmed at the apex beneath, the widened basal portion more closely punctured and narrowly

suleate. Antennal scape about as long as the funiculus. Prothorax a little longer than broad, sub-

conical, bisinuate at the base, transversely excavate on the dise posteriorly, sparsely punctate. Scutellum

elongate-triangular. Elytra oblong, considerably wider than the prothorax, finely punctate-striate, the

punctures of the strize each indicated by a minute cinereous dot, the interstices each with a scattered

row of punctures surrounded by a larger cinereous spot. Pygidium conical, sparsely punctate, setulose.

Ventral excavation of the ¢ long and deep, extending the whole length of first segment. Femora

fringed with rather long hairs beneath.

Length 9-114, breadth 3-3,%, milim. (¢d Q.)

Hab. Mexico, Xautipa in Guerrero (ff. H. Smith: 2); GuaremaLa, Volcan de

Atitlan and San Isidro, Pacific slope (Champion: ¢ ).

Two males and one female, the latter partly ferruginous above. Near J. adspersus,

but relatively narrower, and with a comparatively short unarmed rostrum in both

sexes and a more elongate prothorax. The excavate disc of the latter separates

R. brevirostris from R. nigrolineatus, and the short rostrum from £. andree.

94. Rhodobeenus verzepacis, sp.n. (Tab. VI. figg. 25, 25 a, ¢.)

3. Elongate, subfusiform, opaque above, black indeterminately mottled with rufo-piceous, the elytra each

with a triangular black patch on the inner part of the disc before the middle ; pruinose, the scattered

punctures of the surface each surrounded by a small cinereous dot. Rostrum feebly curved, stout, very

little more than half the length of the prothorax, sparsely punctate, unarmed at the apex beneath, the

widened basal portion narrowly sulcate, the antennal scape nearly reaching the tip and about as long as

the funiculus. Prothorax subconical, longer than broad, feebly bisinuate at the base, transversely

excavate on the disc posteriorly, sparsely, finely punctate. Scutellum elongate-triangular. Elytra

oblong, much wider than the prothorax, finely punctate-striate, the interstices each with a row of

134 RHYNCHOPHORA.

scattered punctures. Pygidium conical, sparsely punctate, pilose at the tip. Ventral excavation long

and deep. Femora sparsely fringed with long hairs beneath. Intermediate tibie sinuate within.

Length 124, breadth 4} millim.

Hab. Guaremaua, San Juan in Alta Vera Paz (Champion).

One male. An elongate form, with an unusually long, subconical, excavate pro-

thorax, and a very short, feebly curved rostrum (as in R. brevirostris), the punctures of

the upper surface each surrounded by a small cinereous dot, much as in #. adspersus.

25. Rhodobeenus arcuatus, sp. n. (Tab. VI. figg. 26, 26a, 3.)

Elongate, subfusiform, narrow, opaque above, black, rufo-variegate, the an markings on the prothorax

condensed into two vittz on the disc, and those on the elytra into a short longitudinal stripe on the disc

at the base and a common, arcuate, suturally-interrupted fascia on the median third (partly enclosing a

common, large, heart-shaped, black patch, which extends along the suture to the base) ; the punctures

each surrounded by a minute whitish dot, the dots on the elytra indistinct upon the dark portions

of the surface; the legs in great part rufous. Rostrum as long as the prothorax, abruptly deflexed

and arcuate from the broad, closely-punctate basal portion, the apical portion compressed, almost

smooth from near the base, in the ? a little longer, more slender, and with a compressed promi-

nence at the tip beneath. Antennal scape nearly twice as long as the funiculus in the 9. Prothorax

longer than broad, obliquely narrowed anteriorly, the sides parallel behind, the base bisinuate ; some-

what closely, finely punctate, except down the middle, the disc with a transverse arcuate depression

towards the base. Scutellum elongate-triangular, narrow. LElytra oblong, a little wider than the pro-

thorax, very finely punctate-striate, the interstices each with a row of widely scattered minute punctures.

Pygidium long, conical. Beneath very sparsely punctured; ventral excavation of the ¢g long and deep,

extending far forwards along the metasternum, the first segment with a compressed tubercle in the

middle in front. Femora ciliate beneath.

Length 83-94, breadth 23-3 millim. (d @.)

Hab, Mexico, 'Toxpam in Vera Cruz (Sallé: ¢); Nicaragua, Chontales (Belé: 9° ).

‘Two males and one female. An elongate, narrow form, obscure ferruginous macu-

lated with black, and with the minute whitish dots mostly placed on the reddish

portions of the surface; the prothorax considerably longer than broad, and with a

transverse arcuate depression towards the base; the pygidium long and prominent;

the ventral tubercle of the male conspicuous. R. arcuatus has much the facies of

Homalostylus dentirostris.

26. Rhodobeenus andres. (Tab. VI. figg. 27, 27a, 2.)

Rhodobenus andree, Chevr. Ann. Soc. Ent. Fr. 1885, p. 279’.

g. Elongate, somewhat fusiform, opaque above, black variegated with ferruginous ; the prothorax ferruginous

with a narrow black stripe down the middle and another along the sides, the elytra ferruginous, each

with an oblique blackish median fascia on the disc and a fainter one midway between this and the apex

(neither reaching the suture, and both sometimes almost obsolete); the rather closely-placed punctures

each surrounded by a rounded yellowish-white spot, those along the elytral interstices somewhat regularly

arranged, and the numerous fine punctures of the striw each indicated by a smaller oval spot. Rostrum

with the basal portion short, abruptly widened, and narrowly sulcate, the apical portion long, somewhat

compressed, almost smooth, and armed with a small dentiform prominence at the tip of the peduncle

RHODOBANUS. 155

beneath, the antenne inserted close to the eyes, the latter large. Prothorax as long as broad, subconical,

transversely excavate on the disc posteriorly, somewhat closely punctate. Scutellum elongate-triangular,

narrow. Elytra elongate, much wider than the prothorax, finely punctate-striate, the punctures of the

strie closely placed, the interstices flat, uniseriate-punctate.

Length 11-124, breadth 33-42 millim.

Hab. Mexico! (Flohr), Juquila (Hoge).

$. Var.? Rostrum with the apical portion feebly curved, almost smooth, unarmed at the tip beneath ;

prothorax, elytra, and legs ferruginous, the prothorax trivittate as in the 9, the elytra without darker

markings on the disc, the punctures on the upper surface each surrounded by a whitish spot; first ventral

segment narrowly impressed in the middle in front.

Length 10, breadth 34-32 millim.

Hab, Mexico, Omilteme in Guerrero (H. H. Smith).

I have seen three females of this insect—two with the rostrum long and feebly curved

(including the type), and one with the rostrum much shorter and abruptly deflexed.

The two examples (?immature) from Omilteme are probably males of the same species.

Chevrolat ! states that the black markings on the elytra resemble a St. Andrew's cross.

The “type” communicated by Dr. Sjéstedt differs in various particulars from the

above description, but there is no reason to suppose it was wrongly named.

27. Rhodobznus nebulosus, sp. n. (Tab. VI. figg. 28, 23 a, 2.)

Subfusiform, opaque above, obscure ferruginous variegated with black, the black predominating on the under

surface, that on the prothorax condensed into a median stripe and another along the sides, and that on

the elytra into four patches on each of them (one, oblique, just below the shoulder, one, large, triangular,

near the suture a little before the middle, one, small, in a line with it on the outer margin, and one,

transverse, on the disc towards the apex); brownish-grey-pruinose, the punctures each surrounded by a

larger or smaller, denser, pallid spot. Rostrum (¢) curved, almost as long as the prothorax, moderately

stout, closely punctate to near the tip, unarmed beneath, the short, broad basal portion feebly sulcate,

(Q) with the apical portion much longer, more slender, and smooth, and the peduncle of the submentum

armed with a small tooth in front. Antennal scape Jong, slender, thickened at the tip. Prothorax sub-

conical, slightly longer than broad, sparsely punctate, the disc with a transverse, arcuate excavation

towards the base. Scutellum elongate-triangular. Elytra much wider than the prothorax, narrowing

from the base, finely punctate-striate, the punctures each indicated by a minute pallid dot, the interstices

each with a row of widely scattered punctures, those along the suture somewhat closely placed and with

a smaller spot. Pygidium conical, pilose at the tip. Ventral excavation of the ¢ very shallow. Legs

rather slender ; femora sparsely ciliate beneath.

Length 83-101, breadth 3-33 millim. (¢ 9.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé).

Two females and one male. Narrower than R. adspersus, obscure ferruginous above,

the elytra each with four blackish patches and the space between somewhat densely

pruinose, the dots along the suture closely placed, the rostrum of the female slender

and a little longer than the head and prothorax united. ‘The arcuate impression on

the prothorax is deep.

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, Apri? 1910. TT

136 RHYNCHOPHORA.

28. Rhodobeenus adspersus. (Tab. VI. figg. 29, 29a, 9.)

Sphenophorus adspersus, Gyll. in Schénh. Gen. Cure. iv. p. 924°; viii. 2, p. 247%.

Rhodobenus adspersus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 283°.

Var. Rhodobenus impressus, Chevr. loc. cit.*

¢. Rostrum abruptly bowed from the short, broad basal portion, about as long as the prothorax (seen from

the side), closely punctate to near the tip; ventral depression broad, extending far forwards along the

metasternum. .

Q. Rostrum with the apical portion a little longer and almost smooth, the peduncle of the submentum with

a small dentiform prominence in front.

Length 9-18, breadth 34-44 millim.

Hab. Mexico }~* (Flohr), Orizaba, Chiapas, Juquila (Sallé), Omilteme in Guerrero

(11. H. Smith); Guatemata, Senahu in Alta Vera Paz (Haase, in U.S. Nat. Mus.).

Found in numbers in the mountains at Omilteme. Distinguishable from its nearest

allies by the conical, transversely excavate prothorax, the rather broad, subtriangular

elytra, and the small, scattered, yellowish or whitish dots on the upper surface (the

elytra sometimes with a darker patch on each side of the suture just before the middle),

and the sub-bituberculate base of the prosternum. I have seen Gyllenhal’s type.

29. Rhodobenus valens, sp. n. (Tab. VI. figg. 30, 30a, 3; 31, 2 .)

Subelliptic, broad, robust, opaque above, black variegated with -red; the red markings on the prothorax

condensed into two curved, posteriorly divergent vitte on the disc (sometimes abbreviated behind or

interrupted) and a short streak on the flanks ; the elytra red, with the scutellar region, a subtriangular

patch on the inner part of the disc before the middle, a common oblong patch along the suture at tho

apex, and three oblique or subtriangular marks along the sides, black ; the meso- and metasternum rufo-

maculate laterally ; the scattered punctures each with a whitish dot. Rostrum stout, shorter than the

prothorax, abruptly bowed from the broad, sulcate basal portion, sparsely punctate to near the tip, and

subangulate towards the apex beneath, in the 2 a little longer and smooth, and with a small prominence

at the tip of the peduncle. Prothorax as broad as long, rounded at the sides anteriorly, the sides parallel

behind; sparsely, shallowly, rather finely punctate. Elytra much wider than the prothorax, finely

punctate-striate, the interstices each with a row of scattered shallow punctures. Ventral excavation of

the ¢ broad, deep, extending far forwards along the metasternum.

ength 123-153, breadth 5-63 millim. (¢ 9.)

Hab. Mexico (Zrugué), Cuernavaca (Sallé, Hige, H. H. Smith; Schaus, in U.S. Nat.

Mus.).

Hight specimens, seven of them found by various collectors at long intervals

at Cuernavaca. A large, broad, robust form of R. pustulosus, which also occurs at

the same locality, with minute scattered whitish dots and the rufous coloration

condensed into sharply-defined markings on the prothorax, elytra, and metasternum.

Lhe var. puncticollis, Chevr., of R. pustulosus, is of about the same size, but it has

larger cinereous spots. From R. pinguis the present species is easily distinguished

by its more elongate form and the very sparse incrustation.

RHODOBANUS. 137

30. Rhodobeenus pustulosus, (Tab. VI. figg. 32, 32a, 2.)

Sphenophorus pustulosus, Gyll. in Schénh. Gen. Cure. iv, p. 923°; viii. 2, p. 2477; Horn, Proc.

Am. Phil. Soe. xiii. p. 415°.

Rhodobenus pustulosus, Lec. Proc. Am, Phil. Soe. xv. p. 332°.

Rhodobenus pustulatus (sic), Chevr. Ann. Soc. Ent. Fr. 1885, p. 283°.

Rhodobenus alboscutellatus, Chevr. loc. cit. p. 284°.

Var. 8 (Calandra punctata, De}. Cat.), Gyll. in Schénh. Gen, Cure. iv. p. 9237.

Rhodobenus pustulatus, var. 8B. puncticollis, Chevy. loc. cit. p. 283°.

3. Rostrum with the apical portion sparsely punctate to near the tip, at most feebly subangulate towards

the apex beneath (as seen in profile) ; ventral excavation broad, shallow, long.

@. Rostrum with the apical portion much smoother, the peduncle of the submentum dentate at the base and in

front.

Length 81-154, breadth 3-54 millim.

Hab. Norra America, Arizona? 4,—Mexico!24-8 (Mus. Brit.; ex coll. Sturm;

Trugqut), N. Sonora (Morrison), Pinos Altos in Chihuahua (Buchan-Hepburn), Puebla,

Izucar, Toxpam, Orizaba, Capulalpam, Parada, Panistlahuaca (Sallé), Juquila (Sallé,

Hoge), Oaxaca (Mus. Brit.), Cuernavaca (Hége, Wickham), Misantla, Cerro de Palmas,

Tapachula (Hége), Xautipa, Chilpancingo, Tepetlapa (HZ. H. Smith); GuaTEMaLa

(Salié), Cubulco, Capetillo, Duefias (Champion).

Found in abundance at Capetillo and also in some of the Mexican localities. A

very variable insect and extremely difficult to define. It may chiefly be recognized by

its comparatively broad form; the more or less rounded sides of the prothorax; the

somewhat closely placed, rather large, cinereous spots on the upper surface (which

are always more crowded along the elytral suture); the bidentate peduncle of the

submentum of the female; and the broad ventral depression of the male. The elytra

often have a darker triangular patch near the suture before the middle and they are

sometimes wholly or in part ferruginous, the prothorax, too, in light-coloured examples

is broadly rufo-bivittate on the disc. The under surface (except down the middle) in

many of the fresh specimens before me is covered with a uniform brownish-white

incrustation. 2. aldoscufellatus, Chevr., is based upon a clean example (fig. 32)

with a pruinose white scutellum, and the var. B (=puncticollis, Chevr.) (the types of all

of which I have seen) upon worn individuals of the same species.

31. Rhodobenus varieguttatus, (Tab. VI. figg. 33, 33, 2.)

Rhodobenus varieguttatus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 284".

¢. Rostrum with the apical portion coarsely punctate at the base, unarmed at the tip beneath; first

ventral segment very slightly depressed in the middle in front.

Q. Rostrum with the apical portion usually much smoother, and the peduncle of the submentum armed with

two dentiform prominences—a short one at the base and a longer one in front.

Length 9-12, breadth 34-4} millim.

TT2

138 RHYNCHOPHORA.

Hab. Mexico (Truqui, Mus. Brit.), San Andres Tuxtla, Toxpam (Sallé), Tapachula

(Héye); Guavemata, Las Mercedes, San Isidro, Zapote, Duefias (Champion).

This is a narrow form of the variable 2. pustulosus, with the sides of the prothorax

more or less parallel at the base and the cinereous spots on the upper surface rather

large, these being somewhat crowded on the prothorax (except along the smoother

median line) and scattered on the elytra. One of the specimens in the British Museum

is labelled R. adspersus, but that species has a deep transverse impression on the

prothorax. As the present insect has occurred in various localities, especially on the

Pacific slope of Guatemala, unaccompanied by R. pustulosus, the two forms are here

retained as distinct. The sexual characters are similar. The type of &. variequttatus

has been communicated by Dr. Sjéstedt for comparison.

32. Rhodobeenus cinereiventris, sp. n. (Tab. VI. figg. 34, 34a, ¢; 35, 2.)

Elongate, somewhat fusiform, opaque above; black, the prothorax with two broad vitte on the dise (not

reaching the base) and another on each flank, and the elytra each with an 2-shaped mark on the disc

before the middle (partly enclosing a common transverse black patch, which extends forwards along the

suture to the base) and various other markings at the base and towards apex, sometimes rufous; the

numerous punctures of the upper surface each surrounded by a small, rounded, cinereous spot, the

pygidium and under surface with a uniform flavo-cinereous incrustation. Rostrum not longer than the

prothorax, strongly arcuate; moderately stout, the short, broad basal portion closely punctate; the apical

portion almost smooth, unarmed at the tip beneath in the ¢, much longer in the Q and with the

peduncle of the submentum in this sex armed with a small tooth in front. Prothorax about as long as

broad, subconical, the sides becoming subparallel behind, the base feebly bisinuate ; somewhat closely

punctate. Scutellum elongate-triangular, Elytra a little wider than the prothorax, oblong, separately

rounded at the apex, finely punctate-striate, the interstices each with a row of scattered punctures.

Pygidium long, conical, sparsely punctate. Beneath sparsely punctate; first ventral segment shallowly

depressed down the middle in the ¢. Femora sparsely fringed with long hairs beneath.

Length 10-11, breadth 33-34 millim. (¢ 9.)

Hab. Mexico, Juquila (Sallé: 3), Misantla, Tapachula (Hoge: 6 2).

Three males and one female, the latter almost black, the others sharply rufo-

maculate above, and with the red markings on the disc of the elytra forming a common

incomplete annulus on the disc before the middle. This insect is of much the same

shape as Lt. varieguttatus, but the whitish dots on the upper surface are small and

somewhat closely placed (especially on the prothorax); the rostrum is smoother in

both sexes; and the peduncle of the submentum of the female is dentate at the tip

only (as in R. adspersus and R. nigrolineatus), the rostrum itself being also elongated

in this sex.

33. Rhodobznus albopunctatus, sp. n. (Tab. VI. figg. 36, 36a, ¢.)

Oblong-elliptic, opaque above, black ; the prothorax and elytra ferruginous or reddish-brown, the prothorax

with a lanciform median vitta, a triangular patch on each side at the base and a spot in front of it on

the disc (these sometimes coalescent), and a large patch on the flanks, black; the punctures on the upper

surface each surrounded by a rounded white or yellowish-white spot, those on the prothorax somewhat

RHODOBZENUS., 139

closely placed, and those on the elytra much larger and arranged in a scattered series along each

interstice ; the under surface cinereo-pruinose. Rostrum scarcely as long as the prothorax, abruptly

and strongly bowed from the broad basal portion, the apical portion sparsely, finely punctate to near the

tip, a little smoother in the @, the peduncle of the submentum with a small prominence in front in this

sex. Prothorax about as long as broad, rounded at the sides anteriorly, feebly bisinuate at the base, some-

what closely punctate. Scutellum oblong-subtriangular. Elytra considerably wider than the prothorax,

narrowing from the base, finely punctate-striate, the interstices each with a row of widely scattered

punctures, those along the suture more closely placed and with a smaller white dot. Pygidium conical.

Ventral excavation of the ¢ broad. Femora sparsely ciliate beneath.

Length 53-92, breadth 2-34 millim. (¢ 2.)

Hab. Mexico (Mus. Brit.), Panistlahuaca in Oaxaca (Sallé).

Described from four specimens (three of which are of very small size) in the Sallé

collection and two others without definite locality in the British Museum. In this

insect the elytra are more or less rufescent and immaculate, and the white spots are

small, sharply defined, and somewhat widely scattered; the prothorax is rufous, more

or less trivittate with black, and somewhat closely albo-punctate; and the peduncle of

the submentum of the female has a very small prominence in front. 2. albopunctatus

is closely related to £. nigrolineatus, but it can hardly be treated as a variety of that

species.

34. Rhodobeenus unidentatus, sp.n. (Tab. VII. figg. 1, 1a, 2.)

Somewhat fusiform, opaque above, black, the elytra and prothorax sometimes indeterminately;maculate with

rufo-piceous, the punctures above and beneath each surrounded by a rather large pale brownish spot,

those on the elytra still larger and widely scattered along each interstice, the punctures of the striz also

with a small pallid dot. Rostrum about as long as the prothorax, moderately stout, abruptly incurved

from the broad basal portion, the apical portion in the ¢ sparsely punctate at the base and unarmed at

the tip beneath, that of the ° a little longer and smoother and the peduncle of the submentum in this

sex armed with a stout, blunt, downwardly-directed tooth towards the apex. Prothorax about as long

as broad, narrowing from near the base, constricted in front, the base feebly bisinuate ; sparsely punctate,

except along a narrow space down the middle. Scutellum oblong-triangular. Elytra much wider than

the prothorax, rapidly narrowing from the rounded humeri, finely punctate-striate, the interstices each

with a row of widely scattered punctures. Pygidium conical, pilose at the tip. Ventral excavation of

the ¢ shallow, broad. Femora fringed with long hairs beneath.

Length 10-112, breadth 4-4} millim. (¢ 9.)

Hab. Mexico, Omilteme and Amula in Guerrero, 6000-8000 feet (H. H. Smith).

Three females and one male. This species is characterized by the somewhat conical

prothorax; the comparatively broad, subtriangular elytra, with large scattered pale

brownish spots; and the stout blunt tooth of the peduncle of the submentum in the

female, the basal prominence (conspicuous in &. pustulosus, 2) being altogether

wanting in both sexes. ‘The non-excavate prothorax and the large spots on the elytra

separate R. unidentatus from KR. adspersus; the stout tooth on the peduncle of the

female from the same sex of FR. nigrolineatus; and the non-incrustate interspaces of

the prothorax from F&. guttatus.

140 RHYNCHOPHORA.

35. Rhodobeenus nigrolineatus, (Tab. VII. figg. 2, 2a, ¢.)

Rhodobenus nigrolineatus, Chevr. Ann. Soc. Ent, Fr. 1885, p. 285°.

Rhodobenus suturellus, Chevy. loc. cit.?

¢. Rostrum scarcely as long as the prothorax, strongly arcuate from the widened, closely punctate, basal

portion, the apical portion somewhat closely punctate to near the tip, the peduncle of the submentum

unarmed; ventral excavation shallow and rather narrow.

9. Rostrum similar in length, but with the apical portion very much smoother and the peduncle of the

submentum armed with a small dentiform prominence in front.

Length 7-10, breadth 23-33 millim.

Hab. Mexico? (Mus. Brit.; Flohr), Toxpam, Yolos, Tosongo (Sallé), Oaxaca!

(coll. Chevrolat), Omilteme, Xucumanatlan (H. H. Smith), Juquila (Sallé, Hoge),

Jalapa (Mf. Trujillo), Yucatan (Mus. Brit.); GuateMaa, Senahu, San Juan, Purula,

Sabo, and Balheu in Alta Vera Paz, Calderas (Champion), Coban (Conradt), Trece

Aguas (U.S. Nat. Mus.).

I have seen the types of R. nigrolineatus and R. suturellus, Chevr., and am unable to

separate them: the first-mentioned is based upon a reddish specimen with a nigro-

trivittate prothorax, and the latter upon an example with the brownish-cinereous spots

very closely placed along the suture. This species is smaller and narrower than

R. pustulosus ; the prothorax is subconical and relatively narrower; the cinereous dots

on the prothorax are somewhat crowded (except along the smoother median line) and

comparatively small, those on the elytra being larger, rounded or oblong, and rather

widely scattered on the disc, the interspaces sometimes cinereo-nebulose; and the

peduncle of the submentum in the female has a small prominence in front only, as in

ZR. adspersus. Found in abundance in various places in Alta Vera Paz, as well as in

Mexico, the rufo-maculate and nebulose forms being comparatively scarce in the long

series before me. ‘The non-excavate disc of the prothorax separates R. nigrolineatus

from R. adspersus, and the unidentate peduncle of the submentum of the female from

the same sex of FR. varieguttatus.

36. Rhodobenus guttatus. (Tab. VII. figg. 3, 3a, 2.)

Sphenophorus guttatus, Fabr. in Schénh. Gen. Cure, viii. 2, p. 247°.

Rhodobenus guttatus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 283’. .

2. Sphenophorus adspersus, Sturm coll. (nec Gyll.) *.

3. Rostrum sparsely punctate to near the tip, the peduncle of the submentum armed with a short tooth in

front; ventral excavation shallow.

Q. Rostrum with the apical portion not so stout, a little longer, and almost smooth, subangulate near the

apex beneath, the peduncle with a stout, curved, downwardly-directed, blunt tooth in front.

Hab. Mexico? (coll. Sturm 13),

We have a pair of this species from the Sturm collection. It is a form of

Ff. pustulosus with the head, the base of the rostrum, the prothorax, scutellum, under

surface (except along the middle), femora, and tibie coated with a uniform flavo-

RHODOB-ENUS. 141

cinereous incrustation, and the elytral interstices each with a scattered series of large,

oval or rounded, whitish spots, those along the suture being smaller and more crowded.

The rostrum is abruptly bent inwards from the widened basal portion. The femora

are fringed with long hairs beneath in both sexes. The prosternum has two small

flattened prominences, separated by a short sulcus, at the base.

37. Rhodobeenus cinctus, (Tab. VII. figg. 4, 4a, 2; 5, 5a, ¢, 6, 6a,

? , vars.)

Sphenophorus cinctus, Gyll. in Schénh. Gen. Cure. iv. p. 9217 (nec Montr.).

Rhodobenus cinctus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 286’.

Sphenophorus cinctus, var. y. rubellus, Gyll. loc. cit.?

Rhodobenus cinctus, var. ¢. obliquus, Chevy. loc. cit. p. 287 *.

Rhodobenus cinctus, var. 6. funerarius, Chevr. loc. cit. p. 287°.

? Rhodobenus quinquemaculatus, Chevr. loc. cit. p. 284°.

g. Rostrum about as long as the prothorax, compressed, and feebly curved from the broad, sulcate basal

portion, sparsely punctate at the base; first ventral segment broadly flattened or slightly depressed down

the middle, without trace of ridge.

@. Rostrum with the apical portion a little longer and smoother, the peduncle of the submentum usually

with a compressed prominence in front.

Hab. Mexico!~+®, Durango to Vera Cruz and Chiapas; GuargmaLa; SaLvapor;

Nicaragua; Costa Rica; PanaMa.—? Brazin 5.

Abundant throughout the warmer parts of Central America, and easily distin-

guishable, when in fresh condition, by the conspieuous whitish lines on each side of

the prothorax and between the black markings on the disc of the elytra (the large,

oval, oblique patch near the middle of the suture, and the oblong patches at the base,

being thus sharply defined). The black marks near the middle of the suture are often

united into a common, large, heart-shaped patch, which usually extends up the suture

to the base and is sometimes connected laterally with the humeral spot. The prothorax

is nigro-trivittate on the disc, the outer vitte (sometimes interrupted or reduced to a

short streak) being placed at some distance from the margin. ‘The variety rudellus

(fig. 5) (found in numbers at Zapote, Guatemala) is ferruginous, with the black

markings reduced in size and the whitish lines only just traceable. R. quinquemacu-

latus, Chevr. (fig. 6) (the type of which I have seen), seems to be a very dirty, pallid,

female example of 2. cinctus. Some of Biolley’s specimens were found on a species of

Vernonia (order Composite) in Costa Rica,

38. Rhodobeenus leucographus. (Tab. VII. figg. 7, 7a, 3.)

Sphenophorus leucographus, Fahr. in Schénh. Gen. Cure. viii. 2, p. 240°.

Sphenophorus stigma, Sturm, in litt.*

$. Rostrum about as long as the prothorax, abruptly bowed from the moderately broad basal portion, the

apical portion stout and compressed, very sparsely punctate to near the tip, the punctures becoming

coarse towards the base; first ventral segment obsoletely depressed down the middle.

142 RHYNCHOPHORA.

aol

Q. Rostrum with the apical portion a little smoother, the peduncle of the submentum with a very small

dentiform prominence in front.

Length 63-71, breadth 2?-2,9, millim.

Hab. Mexico!? (Mus. Brit.; ex coll. Sturm), Cuernavaca (H. H. Smith).

The type of this species, from the “Sommer collection,” has been lent us by

Mr. Janson. It may be readily known by its purplish colour, the nigro-trivittate

-prothorax, and the nigro-lineate elytra, the sides of the prothorax and the disc and

sides of the elytra ornamented with sharply-defined yellowish-white spots or streaks,

those on the disc of the latter clustered into an oblique patch beyond the middle. If

I have identified the sexes correctly, there is but little difference in the form of the

rostrum in the male and female. &. Jewcographus is not included in Chevrolat’s list.

39. Rhodobenus rubrovittatus, sp. n. (Tab. VII. figg. 8, 8a, 2; 9, 9a,

3, var.)

Rhodobenus rubrovittatus, Deyr. in coll. Sallé’.

Elongate, narrow, subcylindrical, opaque above, black, the prothorax usually with a stripe along the sides

(sometimes extending inwards and leaving the base and a median vitta black, sometimes reduced to a

small spot), and the elytra each with a very broad vitta on the outer part of the disc (leaving the suture

broadly, and the lower margin very narrowly, black, the sutural stripe often more or less sinuate

externally or quadrangularly dilated at about the middle), sanguineous or rufous. Rostrum (¢)

gradually curved from the base, moderately stout, shorter than the prothorax, somewhat closely punctate

to near the tip, the basal portion broad and narrowly sulcate, (Q) much longer, rather slender, and

almost smooth, the peduncle of the submentum armed with a small acute tooth in front in this sex.

Prothorax a little longer than broad, subcylindical, constricted in front, feebly bisinuate at the base ;

sparsely, very finely punctate. Scutellum long and narrow, shallowly sulcate. Elytra very little wider than

the prothorax, long, subparallel, finely punctate-striate. Pygidium long, conical, closely punctate. First

ventral segment slightly depressed down the middle in the ¢. Femora fringed with long hairs beneath.

Var. Elytra black, the sixth interstice only with a ferruginous streak, the prothorax with a similarly-

coloured broad marginal vitta (in one specimen extending inwards, so as to leave an elongate, basally-

dilated stripe, and a small spot on each side of it at about the middle, black). (Fig. 9.)

Length 74-81, breadth 2-21 millim. (¢ 2.)

Hab. Mexico (Mus. Brit.), Guanajuato, Parada, Juquila, Capulalpam (Sallé),

Tupataro (Hoge); GuatemaLa, Duefias (Champion), Coban (Conradt).

Apparently not rare in the Mexican State of Guanajuato. A small, narrow, elongate,

parallel-sided form, with a very broad rufous stripe on each elytron, the sides of the

prothorax also usually more or less marked with red. The variety with the rufous

coloration on the elytra reduced to a narrow streak on the sixth interstice is from

Guatemala.

40. Rhodobzenus sanguineus. (Tab. VII. figg. 10, 10a, 2; 1], ¢.)

Sphenophorus sanguineus, Gyll. in Schénh, Gen. Cure. iv. p. 903°; viii. 2, p. 240 (excl. var. 8) .

Sphenophorus sanguineus, var. lineatocollis, Gyll. loc. cit.

Rhodobenus sanguineus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 277+.

Rhodobenus hematidus, Chevy. loc. cit. p. 278°.

RHODOBANUS. 143

¢. Rostrum about as long as the prothorax, abruptly deflexed and compressed from the broad, sulcate basal

portion, the apical portion obsoletely punctate towards the base; first ventral segment broadly flattened

down the middle and with a more or less distinct, short, compressed, cariniform prominence in the centre

towards the anterior margin.

2. Rostrum much longer and with the compressed apical portion almost smooth, the peduncle of the

submentum with an angular prominence in front.

Length 64-10}, breadth 2-31 millim.

Hab. Mrxico1—, Vera Cruz, Guerrero, Guanajuato, Morelos, Oaxaca, &c.; GUATEMALA ;

Nicaraeua; Costa Rica.

An abundant insect in Mexico and Guatemala, reaching an elevation of 8000 feet

in Guerrero. It may be known by its narrow, subfusiform shape; the basally excavate

prothorax; and the rufous colour of the prothorax and the elytra, the former with a

narrow median vitta (rarely divided into two spots), and sometimes a spot or streak on

the flanks, black, the latter immaculate. R. hematidus (the type of which I have seen)

is based upon freshly emerged specimens with each of the minute punctures bearing a

small, hair-like scale. The compressed tubercle on the first ventral segment of the

male is usually very conspicuous; but in one or two examples it is apparently wanting,

but these individuals may be females with the rostrum not longer than in the male.

The numerous specimens of R. hematidus before me are all from Mexico; the two

with the median vitta of the prothorax divided into two spots, and with a rounded spot

on the propleura, were found by Mr. Wickham at Toluca.

Some of the typical examples before me are labelled as having been found on Dahlia

(at Guadalajara), and “corn and beans” (at Quiché).

41. Rhodobenus bisignatus, sp.n. (Tab. VII. figg. 12, 124, 3.)

Subfusiform, opaque above, black; the prothorax and elytra rufous, the former with a narrow median vitta

and a spot on each flank, and the latter with a spot at the middle of the disc at some distance from the

suture, black; the under surface densely cinereo-pruinose. Rostrum not longer than the prothorax,

short, abruptly incurved from the broad, punctured, narrowly sulcate basal portion, the apical portion

compressed, very sparsely, finely punctate, in the 2 a little smoother, unarmed at the tip in both sexes.

Prothorax subconical, constricted in front, about as long as broad, obsoletely punctate, and with a

transverse, arcuate depression on the disc towards the base. Elytra much wider than the prothorax,

gradually narrowing from the rounded humeri, finely punctate-striate. Pygidium conical. Beneath

sparsely, rather coarsely punctate; ventral excavation of the d long and deep, without trace of

compressed tubercle anteriorly.

Length 7-84, breadth 24-3 millim. (d 2.)

Hab. Mexico (Truquz), Puebla, Juquila (Sallé), Tehuantepec (Mus. Brit.).

Five specimens. Very like &. sanguineus, but with a shorter and stouter rostrum

in both sexes, a black spot on the disc of each elytron near the middle, and a long,

deep, non-carinate ventral excavation in the male. It has a similar transverse

excavation on the disc of the prothorax, a character separating /. bisignatus from all

the varieties of R. 13-punctatus. Lh. bipunctatus, Chevr., from Brazil, has somewhat

similarly marked elytra.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, Aprid 1910. UU

144 RHYNCHOPHORA.

42. Rhodobeenus ypsilon. (Tab. VII. figg. 13,134, ¢.)

Rhodobenus ypsilon, Chevr. Aun. Soc. Ent. Fr. 1885, p. 280°.

¢. Rostrum about as long as the prothorax, abruptly deflexed from the broad, coarsely punctate, basal

portion, the apical portion compressed and punctured to near the tip; first ventral segment slightly

depressed in the middle at the base.

9. Rostrum with the apical portion longer and almost smooth, the peduncle of the submentum with a small

compressed prominence in front.

Length 53-9, breadth 13-3 millim.

Hab. Mexico! (Mus. Brit.), San Andres Tuxtla, Toxpam, Juquila (Sal/é), Cordova

(U.S. Nat. Mus.), Oaxaca, Tapachula (/ége); Guatemaza, San Juan and San Gerénimo

in Vera Paz, Cerro Zunil, Zapote (Champion); Nicaracua, Chontales (Richardson) ;

Costa Rica (coll. Sharp), Tucurrique (U.S. Wat. Mus.) ; Panama, Volcan de Chiriqui,

Tolé (Champion).

Numerous examples. A small, narrow, elongate form, ferruginous, variegated

with black—the black markings on the prothorax condensed into three vitte (the

outer two marginal), and those on the elytra into a narrow sutural streak, a more or

less interrupted oblique stripe on the disc (extending from below the shoulder to the

middle of the suture, and sometimes reduced to two spots), a common oblong patch

on the suture at the apex, and a longer one along the sides posteriorly ; the prothorax

longer than broad, sparsely punctate, and with a transverse, arcuate depression on the

disc towards the base, which is limited on each side by an oblique, cinereo-pruinose

streak and sometimes preceded by four transversely placed small cinereous spots ;

the elytra comparatively short and very little wider than the prothorax; the scutellum

narrow ; the rostrum (viewed in profile) subdentate at the base on each side, and

somewhat abruptly separated from the head; the antennal scape nearly twice as long

as the funiculus. A male from San Gerénimo is figured.

43. Rhodobeenus cariniventris, sp.n. (Tab. VII. figg. 14, 14a, 6, 3.)

Somewhat fusiform, opaque above, pruinose beneath, ferruginous, the prothorax with five vitte (one down

the middle, one along each outer margin, and one along the lower part of the flanks), the elytra with

two interrupted oblique fasciz (one extending from a little below the shoulder to the middle of the

suture, the other subapical, and each formed by two or three spots, which are sometimes coalescent)

and a short streak at the base of the suture, and the metasternum and abdomen in part, black; the

fine scattered punctures (in fresh specimens) surrounded by a whitish dot. Rostrum about as long as

the prothorax, abruptly deflexed from the broad, narrowly sulcate basal portion, the apical portion

compressed, sparsely punctured at its base in the g, smooth throughout and slightly longer in the °,

the peduncle of the submentum with a very small prominence in front in both sexes. Prothorax

about as long as broad, obliquely narrowed in front, bisinuate at the base, transversely excavate on the

dise posteriorly, very sparsely, finely punctate. Scutellum elongate-triangular. Elytra a little wider

than the prothorax, finely punctate-striate, the interstices each with a row of very fine scattered

punctures. Pygidium conical. Beneath very sparsely, finely punctate ; first ventral segment of the ¢

broadly depressed and with a short, conspicuous, cariniform prominence in the middle (fig. 146), this

being just traceable in the 9.

Length 83-102, breadth 3-33 millim. (3 2.)

RHODOB-ENUS. 145

Hab, Mexico, San Andres Tuxtla, Juquila (Sallé), Cerro de Palmas (Hége);

GuatemaLa (Mus. Brit.), Zapote, San Gerénimo (Champion).

Eleven specimens, five of which are from Zapote. Distinguishable from the

reddish variety of &. cinctus, and from other allied forms, by the conspicuous

cariniform tubercle on the first ventral segment of the male, a character also to be

found in the same sex of &. bicinctus and R. maculifer.

The vars. a and B of &. deltoides have very similarly marked elytra, but they want

the ventral tubercle in the male.

44. Rhodobeenus bicinctus. (Tab. VII. figg. 15, 15a, ¢.)

Rhodobenus bicinctus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 282°.

3d. Rostrum a little longer than the prothorax, abruptly deflexed from the broad basal portion, the apical

portion compressed and almost smooth; first ventral segment shallowly depressed down the middle,

and usually with a more or less distinct, short, longitudinal plica towards the anterior margin.

@. Rostrum with the apical portion longer and smoother, the peduncle of the submentum with a compressed

dentiform prominence in front.

Var. g. The median fascia of the elytra reduced to a common transverse patch (which extends forwards

along the suture to the base) and a spot on the outer margin, the apical third black; first ventral

segment with a short plica.—Colombia.

Sphenophorus deliciosus, Jekel, in Mus. Brit.

Length 63-10}, breadth 2;1,-34 millim.

Hab. Guatemata, Cerro Zunil, Capetillo, Dueias (Champion); Costa Rica (Van

Patten), Irazu (Rogers), Rancho Redondo, Volcan de Barba, El Tablazo (Biolley),

Carrillo (Underwood).—Cotomaia (Mus. Brit.: var.), Rio Magdalena'!; VENEZUELA

(Mus. Brit.).

Near &. ypsilon; ferruginous variegated with black—the black markings on the

prothorax condensed into three vitta (which are frequently connected along the basal

margin, the marginal one sometimes interrupted and often invisible from above),

and ‘those on the elytra into two common transverse fasciw (the submedian one

sometimes widened inwards and extending up the suture to the base, and sometimes

divided into two spots, the subapical one arcuate) and a subhumeral spot; the

prothorax transversely excavate posteriorly, smoother and a little less elongate than

in R. ypsilon, without densely pruinose streaks and spots ; the pygidium pilose at the

tip; the rostrum longer and smoother, and less abruptly separated from the head.

The four specimens from Venezuela and the variety from Colombia doubtless belong

to the same species; they have a short sharply-defined plica on the first ventral

segment in the male. Some of Biolley’s Costa Rican examples, from one of which

our figure is taken, are labelled as having been found on Labiate.

UU 2

146 KHYNCHOPHORA.

45. Rhodobeenus deltoides. (Tab. VII. figg. 16, 16a, 2.)

Sphenophorus sanguineus, Gyll., var. 6, in Sch6nh. Gen. Cure. vill. 2, p. 240°.

Rhodobenus deltoides, Chevr. Ann. Soc. Ent. Fr. 1885, p. 2797.

Rhiodobenus implicatus, Chevr. loc. cit. (nec Gyll.) °.

¢. Rostrum about as long as, or slightly longer than, the prothorax, abruptly deflexed and very little

curved from the broad basal portion, the apical portion stout, compressed, sparsely punctate towards the

base ; first ventral segment slightly depressed down the middle.

9. Rostrum with the apical portion considerably longer and almost smooth, the peduncle of the submentum

with a compressed angular prominence in front.

Var.a. The humeral patch of the elytra obliquely coalescent with the dilated portion of the sutural

stripe.

Var. 3. The sutural stripe of the elytra reduced to a narrow streak at the base and an oblong spot on each

side of the suture, and the dilated portion into two spots.

Length 7-93, breadth 23-33 millim.

Hab. Mexico !~* (Flohr, Trugqui, Mus. Brit.), Vera Cruz, Toxpam, Playa Vicente,

Cuernavaca, Yolos (Sallé), Jalapa, Juquila, Tapachula (/ége), Santa Lucrecia,

Almoloya (Knad, in U.S. Nat. Mus.) ; British Honpuras (Blancaneauz) ; GUATEMALA,

Zapote (Champion), Trece Aguas (U.S. Nat. Mus.); Nicaragua, Chontales (Belt);

Costa Rica (coll. Fry).

Sent in numbers from Tapachula, on the Pacific slope of Southern Mexico.

Amongst the numerous ferruginous, nigro-maculate forms, the present species may be

distinguished by the excavate disc of the prothorax and the general arrangement of

the black markings—those on the prothorax condensed into three vitte (one down the

middle and one along each outer margin, these latter sometimes abbreviated anteriorly

or reduced to a short streak or spot), and those on the elytra into a broad, submesially

dilated, sutural stripe (which is frequently interrupted beyond the middle), a

subhumeral spot, and a common, curved, apical or subapical fascia, which extends

forwards along the sides to about the basal third. The sutural stripe in some

specimens is sometimes reduced to a short streak at the base and an oblong spot on

each side of the suture before the middle, in others it is more extended and obliquely

confluent with the subhumeral spot.

46. Rhodobenus nigropictus, sp.n. (Tab. VII. figg. 17,17 a, 3.)

Subfusiform, moderately elongate, opaque above, black ; the prothorax and elytra rufous, the former with a lanci-

form median vitta, a triangular patch on each side at the base, and a large space on the flanks, and the

latter with a triangular scutellar patch, a spot on the shoulder, an oblique, oval or rounded, patch near the

suture before the middle and a spot in a line with it on the outer margin (these markings sometimes

coalescent), and an angulate apical fascia (sometimes reduced to one or two oblong spots on each elytron),

black; the punctures each indicated by a faint whitish dot, the under surface densely cinereo-pruinose.

Rostrum not longer than the prothorax, strongly, abruptly incurved from the broad, sulcate, coarsely

punctate basal portion, the apical portion becoming much thicker towards the base, and smooth, bare, and

shining towards the tip, the smoother portion in the Q slightly longer, without prominence at the apex

beneath. Antennal scape and funiculus subequal in length. Prothorax subconical, about as long as

broad, very feebly bisinuate at the base, finely punctate, flattened on the disc posteriorly. Scutellum long

RHODOBAENUS. 147

and narrow. Elytra a little wider than the prothorax, finely punctate-striate, the interstices uniseriate-

punctate. Pygidium conical. Beneath somewhat closely punctured; first ventral segment slightly

depressed down the middle in the g. Femora sparsely fringed with short hairs beneath.

Length 6-7}, breadth 2-24 millim. (¢ 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

Six examples. A small species near R. bicinctus, but differently marked above, the

rostrum shorter, more curved, and much thickened towards the base, the ventral

depression of the male indistinct and without trace of carina. ‘The two triangular

marks at the base of the prothorax and the one on the scutellar region together form

a v-shaped patch. The sexes, if rightly identified, are very similar.

47. Rhodobeenus pantherinus, sp. n. (Tab. VII. figg. 18, 18a, 3.)

Moderately elongate, subelliptic, opaque above, shining beneath; ferruginous or sanguineous, the prothorax

with two spots along the middle of the disc (sometimes united into an incomplete vitta or the posterior

one wanting) and two others along the sides, and the elytra with a transverse or oblique patch on the outer

part of the disc below the base, a scutellar patch, a spot near the middle of the suture (sometimes coalescent

with the one on the opposite elytron and extending up the suture to the scutellar patch), a smaller spot

in a line with it on the outer margin, and a common, angulate, oblique, subapical fascia, black, the

metathoracie episterna, a spot on the lower part of the propleura, the knees, and antenne also black or

piceous; the under surface cinereo-pruinose. Rostrum stout, about as long as the prothorax, abruptly

deflexed and arcuate from the broad basal portion, the apical portion sparsely punctate at the base, in

the 92 a little longer and smooth throughout, the peduncle of the submentum with a small dentiform

prominence in front in this sex. Prothorax nearly as long as broad, rounded at the sides anteriorly,

constricted in front, very sparsely, obsoletely punctate, the disc with a conspicuous transverse, arcuate,

depression towards the base. Elytra much wider than the prothorax, finely punctate-striate. Beneath

very sparsely, finely punctate; first ventral segment broadly flattened or depressed down the middle

anteriorly.

Length 9-123, breadth 34-44 millim. (do @.)

Hab. Mexico (Flohr), San Andres Tuxtla (Sallé), Cordova (Anab, in US. Nat.

Mus.), Tapachula (Hége); GuatemaLa (Mus. Brit.), Purula, Sabo, San Juan, and San

Geronimo in Vera Paz, El Reposo, Cerro Zunil, Zapote (Champion), Escuintla (Knad,

in U.S. Nat. Mus.); Costa Rica, Azahar de Cartago (Underwood), San José, ‘Tarbaca

(Biolley).

This is a rather large, red-legged, ferruginous form of F. 13-punctatus, with

sharply defined black spots on both the prothorax and elytra, and a conspicuous,

transverse, arcuate depression on the disc of the former towards the base. ‘Lhe

twenty-three specimens seen vary but little znter se, and amongst the very long series

of R. 13-punctatus before me there is nothing intermediate. The present insect

cannot be referred to any of the forms named by Chevrolat,

48. Rhodobeenus maculipes, sp.n. (Tab. VII. figg. 19, 19a, 2.)

Moderately elongate, subfusiform, opaque above, ferruginous, variegated with black, the black markings

on the upper surface condensed into a spot on the head, a lanciform median vitta and two spots on

each side of the prothorax, and five large spots on each elytron—one, curved and oblique, below the

148 RHYNCHOPHORA.

shoulder, extending inwards to the fourth stria, one, subtriangular and oblique, near the suture just

before the middle, one, smaller, triangular, in a line with it on the outer margin, one, oblique, midway

between the latter and the apex, and one, oblong, along the suture (in one specimen coalescent with the

corresponding spot on the opposite elytron) at the apex; the femora and tibie ferruginous, the former

with a black spot towards the apex; the under surface in great part black, rufo-maculate along the

sides, cinereo-pruinose. Rostrum moderately stout, about as long as the prothorax, curved and

compressed from the broad, narrowly sulcate basal portion, opaque, obsoletely punctate, in the 2 much

longer, unarmed at the tip beneath in both sexes. Prothorax subconical, about as long as broad,

flattened on the dise posteriorly, sparsely, finely punctate. Scutellum oblong-subtriangular. Elytra

considerably wider than the prothorax, gradually narrowing from the base, separately rounded at the

apex; finely punctate-striate. Pygidium conical, sparsely punctate, setulose. Beneath very sparsely,

finely punctate; first ventral segment unimpressed.

Length 93-10, breadth 34 millim. (¢ 9.)

Hab. Guatemala, near the city 5000 feet (Salvin).

One pair, the female with the curved streak below the base showing a tendency to

join a narrow, oblique, faint, additional spot near the scutellum, and the oblong

apical patch coalescent with the one on the opposite elytron. Very near R. pantherinus,

but with the apical portion of the rostrum duller and more compressed, the prothorax

subconical and unimpressed, the elytral markings differently arranged (the common

oblong apical patch being completely disconnected from the third spot), and the

femora spotted with black. Amongst the varieties of R. pulchellus and R. 13-punctatus

there are none with the elytra marked as in the present insect.

49. Rhodobeenus pulchellus. (Tab. VII. figg. 20, 20a, 2.)

Sphenophorus pulchellus, Gyll. in Schénh. Gen. Cure. iv. p. 8987; viii. 2, p. 239? [nec 8. pulchellus,

Riley, Ins. Missouri, iii. p. 60, fig. 23 (1871)].

Rhodobenus pulchellus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 276°.

Rhodobenus 13-punctatus, Ml., var. 8. 12-maculatus, Chevr. loc. cit. pp. 275, 276‘.

Rhodobenus 13-punctatus, Ill., var. y. metropolitanus, Chevr. loc. cit. pp. 275, 277°.

¢. Rostrum barely as long as the prothorax, arcuate from the broad, narrowly sulcate basal portion,

punctured to about the middle ; first ventral segment very slightly depressed down the centre.

2. Rostrum with the apical portion longer and almost smooth; the peduncle of the submentum with a

dentiform prominence in front,

Var. niger, n. Entirely black.

Length 83-104, breadth 22-32 millim.

Hab. Mexico!~* (Mus. Brit.), Sierra Madre de Tepic (Richardson), Toxpam,

Capulalpam, Parada (Sallé), Oaxaca (Suilé, Hoge), Misantla, Cerro de Palmas (Hoge),

Temax in N. Yucatan (Gaumer: var.); Guatemata’®> (Mus, Brit.), Purula, San

Gerénimo (Champion), Coban (Conradt: var.); Costa Rica (Van Patten: typical form

and var.).

The long series of this insect before me, mainly from San Gerénimo, Misantla, and

Temax, divide up into two sharply contrasted forms—one rufous and nigro-maculate

above, the other wholly black. 2. pulchellus is doubtless yet another phase of

RHODOBENUS. 149

&. 13-punctatus, but as the typical maculate form of it shows little sign of variation,

the two are perhaps best treated as distinct: it is a little more elongate, the prothorax

is subquadrate, and the elytra are less widened anteriorly and subparallel in their basal

half; the prothorax, in the typical form, has a lanciform median vitta (sometimes

reduced to a rounded spot) and two spots on each side near the outer margin, and the

elytra a scutellar patch, a common, transverse, larger patch before the middle

(sometimes reduced to two spots, and sometimes continued along the suture to the

base), a broad, common, transverse, anteriorly angulate, subapical fascia, and two

spots along the sides, black. The wholly black form has been sent in abundance

from Yucatan. I have seen the types of Gyllenhal’s 8. pulchellus and of Chevrolat’s

f. 12-maculatus.

50. Rhodobenus 13-punctatus. (Tab. VII. fige. 21-30.)

Curculio 13-punctatus, Illiger, in Schneider’s Mag. v. p. 613 (1791) *.

Rhynchophorus 13-punctatus, Herbst, Kaf. vi. p. 10, t. 60. fig. 5°.

Calandra 13-punctata, Say, Amer. Ent. t. 9. figg. 8, 4°; ed. Leconte, i. pp. 18, 19, t. 9. figg. 3, 4

(1824) *.

Sphenophorus 13-punctatus, Gyll. in Schénh. Gen. Cure. iv. p. 898°; viii. 2, p. 239°; Horn, Proc.

Am. Phil. Soe, xiii. p. 414” (excl. syn. S. anceps, Gyll.).

Rhodobenus 13-punctatus, Lec. Proc. Am. Phil. Soc. xv. p. 832°; Chevr. Ann. Soc. Ent. Fr. 1885,

p. 275° (excl. vars. 12-maculatus and metropolitanus).

Curculio cribrarius, Fabr. Ent. Syst. Suppl. v. p. 165°.

Calandra cribraria, Fabr. Syst. Eleuth. ii. p. 484"; Oliv. Ent. v. no. 83, p. 88, t. 28.

figg. 412 a,b”.

Curculio 14-punctatus, Panz. ed. Voet, iv. p. 54, t. 37. fig. 18 (1798) ©.

? Curculio leptocerus, Panz. loc. cit. p. 57, t. 37. fig. 23.

? Curculio obscurus, Voet, Cat. Syst. Col. ii. p. 50, t. 37. fig. 23 (1806).

Calandra 5-punctata, Say, Amer. Ent. t. 9. fig. 2°°; ed. Leconte, i. p. 19, t. 9. fig. 27”.

Rhodobenus 5-punctatus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 278”.

Sphenophorus variabilis, Gyll. in Schénh. Gen. Cure. iv. p. 899” ; viii. 2, p. 239°.

Sphenophorus implicatus, Gyll. loc. cit. p. 901”.

Sphenophorus variabilis, var. implicatus, Gyll. op. cit. vill. 2, p. 240.

Sphenophorus lebasti, Gyll. loc. cit. p. 902”.

Sphenophorus variabilis, var. lebasii, Gyll. op. cit. vill. 2, p. 289 *.

Rhodobenus lebasi, Chevr. loc. cit. p. 282”.

Sphenophorus pulchellus, Riley, Ins. Missouri, iil. p. 60. fig. 23 (1871) (nec Gyll.) *.

Rhodobenus femoralis, Chevr. loc. cit. p. 277.

Rhodobenus auctus, Chevy. loc. cit. p. 278”.

Rhodobenus elegans, Chevr. loc. cit. p. 278”.

Rhodobenus corniculatus, Chevy. loc. cit. p. 280 °°.

Hab. Nortu America! 36, United States generally —Mexico 7827-30, Brrrigy

Honpuras; GuAaTEMALA; Nicaragua; Costa Rica; PanaMa.—CoLompia 23-25,

150 RHYNCHOPHORA.

A polymorphic insect and very abundant throughout the United States and Central

America, often occurring gregariously on the flowers of various trees and shrubs.

The sexual characters are similar to those of &. pulchellus. The numerous forms

described by Chevrolat (the types of which I have seen) are connected by intermediate

examples and they cannot be maintained as distinct ; he, apparently, was unacquainted

with the wholly black variety. It may be observed that the two black spots along the

sides of the prothorax are always placed at some distance inwards from the margin

and are never longitudinally confluent, and that the disc is without definite transverse

impression, characters separating #. 13-punctatus, in all its varieties, from 2. deltoides,

R. cariniventris, &c. The var. femoralis, abundant in Mexico and Guatemala, is one

of the most striking forms. Say states that the present species is found on the wild

cotton or milkweed (Asclepias sp.); and Riley 2° says that he has bred it from the

** cocklebur.”

For convenience of reference, the various forms may be grouped under sixteen

headings, thus :—

1. Rufous above, the prothorax with five, and each elytron with four, spots; legs black.

[R. 13-punctatus, auct.|—United States, ? N. Mexico.

2. As in 1, but with the two subapical spots on the elytra united into a common, large

transverse patch, and the two near the middle of the suture also more or less coalescent.

[R. pulchellus, Riley, nec Gyll.] (Figg. 21, 21a, ?.)—United States, Mexico

(Coahuila).

3. As in 1, but with the subapical markings on the elytra obliterated and the other three

spots (the one near the middle of the suture usually excepted) small or inconspicuous.

[R. elegans, Chevr.} (Figg. 22, 22 a, 3.)—Mexico, Guatemala, Costa Rica.

4, As in 1, but with the two spots near the middle of the elytra coalescent, often extending

along the suture to the base or connected posteriorly with the common (subconical,

oblong, or transverse) subapical patch. [R. corniculatus, Chevr.; interpunctatus, Sallé

coll.| (Fig. 28.)—Mexico, Guatemala.

5. As in 4, but with the black markings larger, those on the elytra sometimes coalescent or

condensed behind into a curved subapical fascia. [R. graphicus, Dugés, in litt. ;

venustus, Mus. Brit.] (Fig. 24.)—Mexico, Costa Rica.

6. As in 4, but with the femora and tibiz partly red.—Mexico.

7. As in 5, but with the black markings at the base of the prothorax coalescent. [.R. implicatus,

Gyll.*, nec Chevr. |—Mexico, Costa Rica.

8. As i 4, but with the ferruginous markings on each elytron reduced to a posteriorly

abbreviated median vitta. [R. vittatipennis, var. n.] (Fig. 25.)\—Panama.

9. As in 5, but with the black markings on the elytra condensed into a very large, elongate-

subtriangular, common patch extending from a little below the scutellum to the apex and

* The “type” of this insect communicated by Dr. Sjostedt is evidently &. saucius, Gyll.

3 it bears no

locality-label. 2. implicatus, Chevr.=R. deltoides, Chevr.

10.

ll.

12.

13.

14.

15.

16.

RHODOB-ENUS. 151

bordered externally by two rather large spots ; the surface somewhat coarsely punctate.

[R. triangularis, var.n.] (Fig. 26.)—Mexico.

Rufous above, the prothorax with an attenuate median vitta and two small spots on each

side near the outer margin, and the elytra with a very large, elongate-subtriangular,

common patch extending from a little below the scutellum to the apex, and sometimes

a small spot exterior to it, black. [R. lebasi, Gyll.]|—Mexico, Colombia.

As in 10, but with the femora to near the tip and the tibie in part rufous. [R. femoralis,

Chevr. ; venustus, Sallé coll.] (Fig. 27.)—Mexico, Panama.

Prothorax rufous above, with a median vitta, and two spots on each side near the onter

margin, black; the elytra black, with the outer margin narrowly rufescent, at least

towards the base. [R. 5-punctatus, Say. |—United States, Mexico, Guatemala.

As in 12, but with the black markings at the base of the prothorax coalescent. [R. auctus,

Chevr.] (Fig. 28.)—Mexico, Panama.

Prothorax rufous, with three or five spots on the disc (the basal two large), and one on

each flank, black; theelytra wholly black. [R. ¢horacicus, Chevr.* ; sanguinicoliis, Sallé

coll.] (Fig. 29.)—Mexico, Guatemala, Nicaragua.

Prothorax ferruginous, with a narrow median vitta (rarely obsolete), two spots at the base,

and sometimes another small spot on each side about the middle, black; the elytra

black, rarely with a faint sinuous reddish stripe down the middle of the disc; the

femora sometimes in part ferruginous. [R. nigripennis, var. n.] (Fig. 30.)—Mexico,

Guatemala.

Wholly black. [R. immaculatus, var. n.|—Yucatan, Chiapas, Panama.

51. Rhodobenus rubicundus, sp. n. (Tab. VIL. figg. 31, 31a, ¢.)

Fusiform, moderately elongate, opaque above, ferruginous, faintly pruinose, the punctures filled with a pale

brownish incrustation ; the prothorax with three narrow incomplete vittz (one at the middle, and one

on each flank) and a short streak or spot on each side of the disc near the base, the elytra with a

narrow, oblique, complete or interrupted, fascia extending from a little below the shoulder to about

the middle of the second stria, and the posterior femora sometimes with a space on the inner face

towards the apex, black. Rostrum strongly arcuate, about as long as the prothorax, stout, finely

punctate, smooth at the tip, the basal portion moderately broad, the peduncle of the submentum

with a small prominence in front, Eyes narrow, strongly transverse. Prothorax as long as broad,

conical, feebly constricted in front, bisinuate at the base, transversely depressed on the disc posteriorly ;

impressed with fine scattered punctures, each of which is surrounded by a transverse or rounded

brownish dot. Scutellum long, narrow. Elytra much wider than the prothorax, subtriangular,

finely striate, the striz with fine, distantly-placed punctures, the interstices flat, obsoletely uniseriate-

punctate. Pygidium sparsely punctate. Under surface rather coarsely punctured; ventral depression

of the g extending forwards. Legs comparatively elongate, the posterior femora reaching beyond the

tip of the pygidium, all of them with scattered clubbed hairs beneath.

Length 74-9, breadth 35-32 millim. (¢d @.)

Hab. Costa Rica, La Palma (Biolley), Carrillo (Underwood); Panama, Volcan de

Chiriqui (Champion).

Three specimens. An isolated form, ferruginous in colour, witn a conical,

nigro-lineate prothorax, triangular, obliquely unifasciate elytra, and unusually long

hind legs. The eyes vary in size.

* Ann. Soc. Ent. Fr. 1885, p. 276.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. XX

152 RHYNCHOPHORA.

SCYPHOPHORUS.

Scyphophorus, Schénherr, Gen. Cure. iv. p. 855 (1888) ; Lacordaire, Gen. Col. vil. p. 294; Horn,

Proc. Am. Phil. Soc. xiii. p. 409 (1878) ; Leconte, op. cit.,xv. p. 331.

A genus easily separable from the rest of the American Sphenophorina by the

flattened, spongy, apical portion of the antennal club. I follow Leconte in reducing

the number of so-called species to two, S. acupunctatus, Gyll., and S. ywecw, Horn *.

These insects attack Amaryllides and Liliacez (Agave, Furcrwa, and Yucca).

1. Scyphophorus acupunctatus. (Tab. VII. figg. 32, 32a, ¢.)

Scyphophorus acupunctatus, Gyll, in Schonh. Gen. Cure. iv. p. 857 '; Horn, Proc. Am. Phil. Soc.

xiii, p. 409°; Lec. op. cit. xv. p. 881°; Dugés, La Naturaleza, v. p. 124, t. 3. figg. 6, 6 a7

(1881)*; Chevr. Ann. Soe. Ent. Fr, 1882, p.577°; Dugés, Ann. Soc. Ent. Belg. xxx. p. 33,

t. 2. figg. 11-16 (1886) *.

Scyphophorus interstitialis, Gyll. loc. cit. p. 856".

Scyphophorus anthracinus, Gyll. loc. cit. p. 858 °.

Rhyncophorus asperuius, Lec. Pacif. R. Rep. 1857, p. 58°.

Scyphophorus robustior, Horn, loc. cit. p. 409”.

Hab. NortuH America, Colorado 3, California? 9, New Mexico, Arizona, Texas ?.—

Mexico!*8; British Honpuras; GuaTeMALA; SaLvapor; Costa Rica.—VENEZUELA,

Caracas’; Cuspa®; Harrr®?,

An abundant insect in our region, varying greatly in size, in the shape and punc-

turing of the prothorax, and in the sculpture of the elytra, the interstices being flat in

some examples and convex in others. The male has the first ventral segment and the

adjacent portion of the metasternum broadly depressed down the middle. The female

has the prothorax less rounded at the sides, the rostrum smoother, more slender, and

cylindrical to the tip, and the femora and tibie clothed with shorter hairs than in the

male. Dugés* has described and figured the larva and pupa of S. acupunctatus, and

he gives the food-plant as Agave mexicana and A. cubensis. Some of Biolley’s Costa

Rican examples are labelled as having been found in Agave americana and Furcrea

tuberosa. Leconte® states that it lives on Vueca. One specimen in the British

Museum is ticketed “bred in greenhouse, Windsor, 1891.” ‘The length varies from

10-19 mm.

A male from Oaxaca with a strongly developed prothorax is figured.

SPHENOPHORUWS.

Sphenophorus, Schénherr, Gen. Cure. iv. p. 874 (1838) (part.) ; Lacordaire, Gen. Col. vii. p. 295

(part.) ; Horn, Proc. Am. Phil. Soc. xiii. p. 411 (exclud. Group IT.) ; Leconte, op. cit. xv.

p. 831; Chittenden, Proc. Ent. Soc. Wash. vi. p, 128 (1904), and vii. pp. 50, 166 (1905).

* We are indebted to Mr. Wickham and Prof, Chittenden for specimens of this Californian insect.

It feeds on Yucca gloriosa.

SPHENOPHORUS. 153

This cosmopolitan genus, as at present restricted, may be said to have its head-

quarters in the United States, to judge from the numerous forms added during recent

years; and a considerable number are also found in Mexico, one only of these latter

(S. incurrens) being known as yet to extend southward through Central America.

In Tropical South America and the Antilles, Sphenophorus seems to be replaced to a

certain extent by Merothricus, Chevr. (type, S. rusticus, Gyll.), the species of which

have a rather longer, subconical antennal club. Three of the Mexican forms here

referred to the present genus (8. aterrimus, S. mundus, and 8. octocostatus) have a

broad spongy-pubescent third tarsal joint, but they are so obviously related to

S. equalis, Gyll., that they must be placed near that insect. Most of them are very

variable, as regards the sculpture and incrustation of the surface, there being opaque

and shining forms of some of the species, and in consequence they are often difficult to

define; good characters, however, are often to be found in the males.

Prof. F. H. Chittenden has very kindly presented us with named examples of fifty

N.-American species (including many of his own co-types), for comparison with the

Mexican forms, the types of nearly all of which I have seen; but even with this

abundance of named material I am unable to arrive at a positive.conclusion as regards

the true limits of such species as S. reticulaticollis, S. sulcifrons, and others. Horn’s

Section B of his Group V. (including insects with the anterior tibiz toothed or

angulate at the middle) is not represented in our region, and his Group II. has

already been dealt with under Cactophagus and Rhodobenus.

Many of these insects are destructive to the roots of maize, both in the

larval and adult stages (S. zew, S. maidis, &c.), or attack Pontederia cordata*

(S. pontederie), Cyperus esculentus* (S. destructor), grasses, like Distichlidis spicata

(S. distichlidis), &c.

The subjoined Table will assist in the identification of the forms enumerated in the

following pages :—

a. Third joint of each tarsus large, broad, and spongy-pubescent (except

along a very narrow median line) beneath, in both sexes; rostrum

subcylindrical.

a’, Upper surface bare and opaque, the prothorax at most feebly punc-

tate, the elytral interstices flat.

. Elytral strize obsoletely punctate. . . . - . + + + + + aterrimus, sp. n.

” Elytral striz conspicuously punctate . . . . . mundus, sp. n.

b'. Upper surface uneven, the puuctures and depressions ‘filled with a

dense incrustation ; prothorax very coarsely unequally punctate

and with a smooth, broad median ridge; elytra each with four

broad coste, the suture also raised and bare . . - + + + + 9ctocostatus, sp. n.

* A plant found throughout our region (¢f. Biol. Centr.-Amer., Botany, iii. pp. 383, 446).

XX 2

154 RHYNCHOPHORA.

b. Third joint of each tarsus moderately broad, and with a densely

pubescent space on each side beneath, in both sexes.

c'. Upper surface covered with a thin, natural, shining, incrustation ;

prothorax with three broad longitudinal ridges; rostram com-

pressed 2. we we ee ee

', Upper surface uneven, the foveiform depressions densely in-

crustate; the prothorax flattened, the elytral striz and interstices

similarly punctate ; rostrum subcylindrical. . . . . . 1.

c. Third joint of anterior tarsi of § more or less widened and with a

space on each side densely pilose beneath, that of the ? narrower.

e’. Prothorax with an abbreviated lanciform median ridge, and a

sinuous ridge on each side of it, bare and shining, the third

elytral interstice also raised anteriorly, the depressions of the

surface incrustate . ee

f’. Prothorax with a more or less conspicuous V-shaped area at the

base, and a narrow, oblong, flattened space or depression in front,

coarsely punctate; elytra with large, oval or horseshoe-shaped,

foveve placed along the narrow striz, the foves often incrustate ;

anterior tibie slightly produced at the outer apical angle .

d. Third joint of each tarsus narrow, subconical, laterally pilose, at most

very slightly widened in ¢.

y'. Rostrum compressed, stout.

c’, Prothorax coarsely, densely punctate, with a smoother Y-shaped

median ridge and an oblique ridge on each side of it, the elytra

also with a spot on the shoulder and another near the apex

bare, the rest of the upper surface incrustate.

a’. Incrustation moderately dense; first ventral segment of 3

deeply excavate a

6°. Incrustation (in fresh specimens) denser, felt-like; first

ventral segment of ¢ slightly depressed . . . . . .

d’. Prothorax densely punctate, except along a smooth, narrow,

raised median line, and with a V-shaped depressed area at the

base: upper surface incrustate.

c’. Elytra coarsely punctate-striate; rostrum feebly sulcate at

the base: species larger and broader.

d’. Elytra very finely punctate-striate; rostrum deeply suleate at

the base: species narrower and smaller . . . . . -

e*. Prothorax densely, coarsely, confluently punctate, except along

the narrow raised median line; elytra with rather coarse scat-

tered punctures along the strie ; rostrum deeply sulcate at the

base: upper surface incrustate . . . . . soe a

J*. Prothorax rather sparsely, unequally punctate, almost even ;

elytra with coarse scattered punctures along the strie, the inter-

stices somewhat coarsely uniseriate punctate ; rostrum deeply

sulcate at the base; pygidium tumid: surface incrustate or bare .

ochreus,. Lec.

multipunctatus, sp. n.

cariosus, Oliv.

cicatistriatus, Fahr.

reticulaticollis, Boh.

hoegbergi, Boh.

terricola, sp. n.

cesifrons, Chevr.

lutulentus, sp. n.

sulcifrons, Clevr.

SPHENOPHORUS, 15:

g. Prothorax finely, subuniformly punctate, except along a narrow

smooth space down the middle, even; elytra sharply punctate-

striate; anterior tibiz more or less produced at the outer apical

angle: upper surface almost bare.

e’. Punctuation of the prothorax sparser; elytral interstices very

finely punctate . . 2... . toe ee ew ew ee memnonius, Gyll.

f®. Punctuation of the prothorax a little coarser and closer ;

elytral interstices coarsely uniseriate-punctate . . . . . vomerinus, Lec.

h‘. Rostrum feebly compressed or subcylindrical, more slender, not

or scarcely widened towards the apex beneath (except in

S. incurrens).

h?, Prothorax with a V-shaped area at the base, an oblong subapical

depression, and a similar depression near each hind angle,

coarsely punctate, the rest of the disc to near the sides smooth

or very finely punctured; elytra rather coarsely punctate-

striate: surface in great part bare, the punctures sometimes

incrustate.

g’. Upper surface shining, black . . . . . . «© «© + « . tneurrens, Gyll.

h?. Upper surface opaque, varying in colour from black to ferru-

ginous; elytra often with the striz more coarsely punctate . ineurrens, v. monilis,

#, Prothorax with a V-shaped or oblong, coarsely punctured, flat- [Gyll.

tened or depressed, area at the base, the rest of the surface

more or less finely punctate, smooth along the median line ;

elytra crenato- or punctato-sulcate : surface bare and shining.

*. Body ferruginous or rufo-castaneous above, black beneath ;

the prothorax with three sharply-defined vittee on the disc,

the scutellum, and the elytra sometimes with the alternate

interstices, black ; elytra crenato-striate.

a‘. Fifth ventral segment sharply hollowed down the middle

posteriorly, and the anterior and intermediate femora

ciliate, in ¢ . quadrivittatus, Gyll.

&. Fifth ventral segment without definite groove, and the

anterior and intermediate femora penieiiate at the base,

in g . 2 oe ee toe . lineatus, sp. a.

e ° ° e

j’. Body black (the prothorax and elytra sometimes rufo-lineate

or castaneous); elytra punctato-sulcate, with flat, finely

punctate interstices . . - + © © © «© # «© «@ . imus, Gyll.

j. Prothorax narrow, with a small space in front of the scutellum

rather more coarsely punctured than the rest of the minutely

punctate surface, smooth along the median line; elytra sharply

punctate-striate, the interstices flat, minutely punctate; an-

terior tibice produced at their outer apical angle: surface bare

andshining . . 6 + + e+ 6 ee et ee ee we angustus, Boh.

156 - RHYNCHOPHORA.

1. Sphenophorus aterrimus, sp. v.

Oblong-oval, rather broad, robust, opaque and glabrous above, black. Rostrum a little shorter than the

prothorax, moderately stout, feebly curved and deflexed from the short narrowly sulcate basal portion,

the latter arcuately swollen above the points of insertion of the antenne and (as seen in profile) toothed

on each side beneath in front of the eyes ; somewhat coarsely punctate, becoming smoother towards the

tip ; the peduncle of the submentum compressed and rectangular in front in the 2. Prothorax a little

broader than long, arcuately narrowing from about the middle, feebly constricted in front, bisinuate at

the base; sparsely, finely punctate, the interspaces alutaceous. Scutellum oblong-triangular, hollowed

down the middle anteriorly. Elytra much wider than the prothorax, narrowing from the broadly

rounded humeri, obtuse at the apex, the disc with one or two faint transverse depressions towards

the sides; very finely punctate-striate, the seventh and eighth strie obsolete for some distance below

the shoulder, the interstices broad, flat, alutaceous, each with one or two rows of minute punctures

down the middle. Pygidium coarsely punctate. Beneath rather coarsely, closely punctate; ventral

excavation of the ¢ broad, extending forwards to about the middle of the metasternum. Femora fringed

with long, the tibise and coxe with shorter, hairs, the tibiae almost straight on their outer edge and

unarmed at the apex within. Third tarsal joint very large, spongy-pubescent beneath, except along a

narrow median line.

Length 144-15, breadth 54-6 millim. (¢ Q.)

Hab. Muxico (Sallé, Truqut).

One pair. A large, robust, deep black, bare, opaque form, with the third tarsal

joint of each foot broad and spongy-pubescent beneath, the tibie unarmed at the apex

within and almost straight on their outer edge. ‘The oblique plica limiting the scrobes

posteriorly appears dentiform when the rostrum is viewed in profile. ‘This species

approaches the European S. piceus, but differs from it in the opaque upper surface,

the abruptly bowed, shorter rostrum, the more distinctly sinuate base of the prothorax

and elytra, the faintly punctured interstices of the latter, and the greatly developed

third tarsal joint.

2. Sphenophorus mundus, sp. n.

Subfusiform, rather broad,. black, opaque and somewhat flattened above, faintly pruinose. Head coarsely,

sparsely, irregularly punctate in front, foveate and transversely grooved between the eyes; rostrum

-barely as long as the prothorax, abruptly bowed from the short, broad, irregularly punctate basal portion,

the apical portion subcylindrical, rather slender, almost smooth. Prothorax about as long as broad,

obliquely narrowing from a little beyond the middle, feebly constricted in front; punctured along the

sides, base, and apex, the dise arcuately depressed posteriorly and almost impunctate. Scutellum

triangular, flattened. Elytra moderately long, considerably wider than the prothorax; finely striate,

the striz with closely placed rather coarse oval punctures, which become rounded towards the sides, the

interstices flat and almost smooth. Pygidium coarsely, closely punctate. Beneath sparsely punctured,

the punctures becoming coarse towards the sides. Femora sparsely ciliate beneath, the tibiz fringed with

extremely short hairs, the latter almost straight on their outer edge. Tarsi with the third joint broad,

spongy-pubescent beneath. ,

Length 113, breadth 41 millim, (@.)

Hab. Mrxico, “Sierra de Durango” (Hoge).

One specimen, recently presented to us by Signor A. Solari. Smaller and more

depressed than S. aterrimus, the prothorax arcuately excavate in the middle towards

the base and with the disc almost impunctate, the elytral strize each with a row of

SPHENOPHORUS. 157

rather coarse, deep, oval punctures, the third tarsal joint less dilated. 8. mundus

would, perhaps, be almost equally well placed in Rhodobenus.

3. Sphenophorus octocostatus, sp. n. (Tab. VII. figg. 33, 334, 2.)

Oblong-oval, black, the coarse punctures on the prothorax and pygidium, and the depressed spaces between

the elytral coste, with a reddish-brown incrustation, the rest of the surface more or less shining, the

punctures on the under surface and legs each bearing a minute hair-like scale. Rostrum a little shorter

than the prothorax, curved, moderately stout, cylindrical, closely punctate, the widened basal portion

faintly sulcate up to the frontal fovea, the peduncle of the submentum with a small, compressed, rounded

prominence in the 2. Prothorax about as long as broad, gradually and arcuately uarrowing from near

the base, feebly constricted in front, bisinuate at the base; very coarsely, irregularly punctate, except

along the rather broad, smooth median ridge, the punctures here and there confluent, or separated by

smooth flattened spaces. Scutellum triangular, smooth. Elytra moderately long, subtriangular, much

wider than the prothorax; each with the four broad cost and the sutural interstice bare, the finely

punctured narrow strie almost hidden by the dense incrustation, the flattened interstices rather coarsely

uniseriate-punctate, the others with an irregular double row of fine punctures. Pygidium coarsely

punctate. Beneath very coarsely punctate; ventral excavation of the ¢ long, broad, and shallow.

Femora fringed with long, the tibie with short, hairs, the tibia nearly straight on their outer edge and

feebly sinuate and almost unarmed within. Third tarsal joint very large, spongy-pubescent beneath.

Length 122-13, breadth 5-51 millim. (d 2.)

Hab. Mexico, Omilteme and Xucumanatlan in Guerrero, 7000-8000 feet (2. 7.

Smith).

Two males and one female. ‘This species may be readily recognized by the single

broad smooth median ridge on the prothorax, which for the rest is very coarsely,

confluently punctured, aud the four broad glabrous coste on each elytron. ‘The elytra

are very similar to those of &. costipennis, Horn * and S. striatipennis, Chittend., and

the third tarsal joint is as broad as in S. aterrimus.

4. Sphenophorus ochreus, (Tab. VIIL. figs. 1,14, 4 ¢ .)

Sphenophorus ochreus, Lec. Proc. Acad. Phil. 1858, p. 80°; Chevr. Ann. Soc. Ent. Fr. 1885,

p. 107°; Chittend. Proc. Ent. Soc, Wash. vii. p. 182 (1905) (vec Horn) *.

Sphenophorus pictus, Lec. loc. cit. p. 80‘; Horn, Proc. Am. Phil. Soc. xiii. p. 417”.

Hab. Norra America, Utah 3, Vallecito in California *°.—Mzxico 3, Sonora },

This is one of those species of Sphenophorus (Group III. of Horn) with a dense,

elabrous, subopaque or shining, natural, surface-incrustation, and a rather broad third

tarsal joint. Ihave recently seen Gyllenhal’s type of S. equalis, and Horn’s description

of S. ochreus must have been taken from specimens of that insect. S. e@qualis is

apparently confined to the Atlantic States and 8. Dakota; it may be separated from

S. ochreus (examples of both of which I have examined) by the coarser, rounded (not

oval) punctures of the elytral strive (fig. 14), the villose ventral excavation of the

male, &c. We figure a specimen of the true S. ochreus kindly sent by Prof. Chittenden.

* There is a specimen o/ this species in the Sallé collection labelled as from “ Costa Rica,” but the locality

requires ‘confi: mation.

158 RHYNCHOPHORA.

5, Sphenophorus multipunctatus, sp.n. (Tab. VII. figg. 34, 344, ¢ .)

$. Elongate, subfusiform, rather broad, flattened above, opaque, black, the tarsi piceous, the coarse punctures

on the upper and under surfaces and legs filled with a pale brownish incrustation. Rostrum a little

shorter than the prothorax, moderately stout, subcylindrical, depressed in front of the broad, flattened,

sulcate, coarsely punctate basal portion, the apical portion more sparsely punctured, the peduncle of the

submentum rounded in front. Prothorax much longer than broad, subcylindrical, abruptly constricted

in front, and narrowed at the base, the base and sides feebly sinuate; sparsely punctate, the punctures

becoming coarser and more crowded along the sides and down the slightly depressed oblong space at the

base. Scutellum rather small, oblong-subtriangular. Elytra a little longer and wider than the pro-

thorax, subcordate, somewhat uneven ; with rows of subcontiguous, rounded, foveiform punctures placed

along the fine striz, the interstices flat, similarly punctured, 1, 3, and 5 becoming irregularly biseriate-

punctate anteriorly. Pygidium and under surface very coarsely, closely punctate ; metasternum and

first two ventral segments broadly and shallowly sulcate down the middle, the punctures each bearing a

fine hair, the fifth segment with a very large, deep, pyriform excavation, bordered on each side by

a crenate ridge. Femora and tibie sparsely fringed with long hairs, the tibiew curved and with a very

long apical claw, the subapical tooth at the inner apical angle almost obsolete. Third tarsal joint

widened and with a narrow spongy-pubescent space on each side beneath.

Length 123, breadth 44 millim.

Hab. Mexico, Tepenistlahuaca in Oaxaca (Sallé).

One specimen. A remarkable form, with the coarse punctures of the elytral inter-

stices of about the same size as those of the striv, the elytra themselves heart-shaped,

the prothorax unusually long and subcylindrical, the tibie curved, and the deep

pyriform excavation of the fifth ventral segment of the male bordered on each side by

a crenate ridge.

6. Sphenophorus cariosus. (Tab. VIII. figg. 2, 2a, ¢.)

Culandra cariosa, Oliv. Ent. v. no. 83, p. 91, t. 28. fig. 415 *.

Sphenophorus cariosus, Horn, Proc. Am. Phil. Soc. xi. p. 420°; Chittend. Proc. Ent. Soc. Wash.

vil. p. 177°.

Calandra larvalis, Germ. Ins. Spec. nov. p, 801 *.

Rhynchophorus cicatricosus, Say, Descr. N. Am. Cure. p. 22°; Complete Writings, i. p. 289°.

Sphenophorus flexwosus, Gyll. in Schénh. Gen. Cure. iv. p. 9407.

Sphenophorus sculptilis, Uhler, Proc. Ac. Phil. 1855, p. 416°.

Hab. Nortu America? $8, Middle and Gulf States ?.—Mexico (Mus. Brit.), Cordova

and Jalapa (//6ge).

Hoge has sent us four specimens of this conspicuous N.-American species from

definite localities in Mexico, thus extending its distribution to as far south as the

State of Vera Cruz. 8. cariosus may be known by three more or less polished

longitudinal flattened ridges on the prothorax (the median one diamond-shaped and

abbreviated posteriorly, the others long, sinuous, and complete), and the basally raised

third elytral interstice, the fifth also somewhat prominent. The male has the pygidium

hairy on each side at the apex, the ventral excavation long and deep, and the third

joint of the anterior tarsi slightly widened, A specimen from Cordova is figured.

SPHENOPHORUS. 159

7. Sphenophorus cicatistriatus. (Tab. VIII. figg. 3, 3a, b, 3.)

Sphenophorus cicatistriatus, Fahy. in Schénh. Gen. Cure. iv. p. 958°.

Sphenophorus cicatripennis, Fahr. op. cit. viii. 2, p. 2627; Chevr. Ann. Soc. Ent. Fr, 1885,

pp. 110, 111°.

Sphenophorus ulkei, Horn, Proc. Am. Phil. Soc. xii. p. 413 *.

Sphenophorus irrelitus, Duges, in litt.’.

6. Anterior and intermediate femora clothed with coarse erect hairs along their lower face, the hairs

towards the base clustered into a matted tuft, the coxe of the same legs also with a pencil of hairs ;

all the tibiz sinuate, suleate, and fringed with long hairs within; anterior and intermediate tarsi with

the third joint wider than in the 2; ventral excavation broad and deep, extending far forwards along

the metasternum.

©. Anterior and intermediate femora with a small tuft of hairs at the base. a little larger than that on the

coxse; tibise clothed with shorter hairs.

Length 71-11, breadth 23-4} millim. .

Hab. Norta America, Nebraska, Colorado, New Mexico, and Wyoming 4. —

Mexico!?35 (Mus. Srit.; ev coll. Sturm; Truqui; Flohr), Northern Sonora

(Morrison), Guanajuato, Izucar, Puebla (Sallé), Mexico city (Palmer, Hoge), Cholula,

Morelia, Irapuato, Cerro de Palmas (Lodge), Toluca (Hoge, Wickham), Mixcoac,

Salazar (Wickham), Yucatan (J/us. Brit.).

A common insect on the Mexican plateau, specimens from thence agreeing perfectly

with others from Colorado and Wyoming sent me by Prof. F. H. Chittenden. It may

be known by the slightly produced outer apical angle of the anterior tibie, and the

large, oval or horseshoe-shaped, fovee (fig. 36) placed along the narrow, sharply-cut,

elytral striz, the fovee in some examples being divided into two by the raised edges of

the stria. The sculpture of the prothorax is very variable, but the V-shaped, coarsely

punctured, depressed area at the base and the oblong similarly-punctate depression in

front are always traceable. ‘The anterior tibie are sharply dentate on the inner side

towards the apex. The rostrum is short and stout, narrowly sulcate at the base, and,

as seen in profile, sharply, rectangularly dilated at the apex beneath. The pygidium

has a small tuft of hairs on each side at the apex. In one of two examples from

Guanajuato (a ¢) the puncturing of the prothorax is unusually dense, and the

alternate elytral interstices are narrowly raised and here and there transversely

confluent. In another (2), from Sonora, the prothorax is comparatively smooth, with

the coarsely punctured basal and apical depressions only just indicated, and the fovez

on the elytra rounded and somewhat widely separated. S. cicatripennis was based

upon examples with a comparatively smooth prothorax, fewer fovew on the elytra, and

the depressions of the surface “ pulverulent.” Mr. Wickham met with this species at

various places near the city of Mexico in August last. We are indebted to him, and

to Prof. Chittenden, for specimens of S. whet, Horn.

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. . YY

160 RHYNCHOPHORA.

8. Sphenophorus reticulaticollis. (Tab. VIII. fig. 4, 2.).

Sphenophorus reticulaticollis, Boh. in Schénh. Gen. Cure. viii. 2, p. 257* (nec Chittend.).

? Sphenophorus vestitus, Chittend. Proc. Ent. Soc. Wash. vi. pp. 182, 184 (1904) *.

Hab. Nortu America, California1, Georgia, Florida, &c.?, Texas.—MeExico (Sal/é,

Mus. Brit.), Guadalajara (Hoge), Toluca (Wickham).

Seven N.-American species of the S. venatus and S. reticulaticollis-group of this

genus are recognized by Prof. Chittenden (six of which he has kindly sent for

examination), but it seems to me to be very doubtful if they can all be maintained

as distinct. ‘The muddy-looking incrustation frequently disguises the true coating of

the surface and hides a great deal of the sculpture, and it will probably be found that

too much reliance has been placed upon this character for distinguishing the insects

in question*. I follow him, however, in retaining S. reticulaticollis, Boh. (nec

Chittend.) (the type f of which I have seen), as distinct from &. venatus and S. placidus,

Say, for the present, and his S. vestitus seems to me to be inseparable from it. The

present species is recognizable by the thin, rather dense, brownish-grey or olivaceous

coating ; the very coarsely punctured prothorax, with the Y-shaped median ridge, and

the oblique curved ridge on each side of it, moderately prominent; the large, deep,

scattered punctures along the elytral striae; the small tuft of hairs on each side of the

pygidium at the tip in both sexes; and the deeply excavate first ventral segment in

the male. The elytra are more or less transversely wrinkled, or have the alternate

interstices a little raised, and there is usually a bare, shining, oblong spot on the

shoulder and another on the subapical callosity. The rostrum is compressed, and

acutely dilated at the apex beneath (as seen in profile), strongly so in the female.

The anterior and intermediate femora and coxe have each a small tuft of hairs.

The specimen from Guadalajara agrees very nearly with one of the two examples (that

from Louisiana) of S. vestitus sent by Prof. Chittenden, the five others from Mexico

before me having (as in the type) more rugose elytra. S. pheniciensis, Chittend.,

from Arizona, is also closely related to these insects.

9. Sphenophorus hoegbergi.

Sphenophorus hoegbergii, Boh. in Schinh. Gen. Cure. viii. 2, p. 254"; Chevr. Ann. Soc. Ent. Fr.

1885, p. 109?.

? Sphenophorus coactorum, Chittend. Proc. Ent. Soc. Wash. vi. pp. 182, 186 (1904) *.

Hab. Nort America, Texas .—Muxico 2, Vera Cruz 1, Cordova (Hége).

This insect is probably an extreme form of the variable S. reticulaticollis with the

incrustation thicker and denser, and extending to the scutellum ; it mainly differs from

the latter in the shallowly depressed first ventral segment of the male. The type,

* The pruinosity of the scutellum often disappears in Rhodobenus pustulosus and its allies.

T It bears two locality-labels—* Mexico ” and “ Calif ”

SPHENOPHORUS. 161

which I have seen, is a male, and we have two others from Cordova agreeing with it.

They have the prothoracic depressions a little more distinct than in the Texan examples

of S. coactorum kindly forwarded by Prof. Chittenden. The S. reticulaticollis of the

last-named author (nec Boh.), from Los Angeles, California, &c., is closely related to

S. hoegbergi.

10. Sphenophorus terricola, sp. nu.

Oblong-oval, robust, opaque above, black, covered with a brownish incrustation, which partly hides the elytral

sculpture. Rostrum curved, stout, compressed, barely two-thirds the length of the prothorax, closely

punctate above, smooth at the sides anteriorly, angularly dilated at the apex beneath, the widened basal

portion shallowly sulcate up to the frontal fovea. Prothorax longer than broad, somewhat rounded at

the sides, bisinuate at the base; densely punctate, except along the smooth, raised, incomplete median

line, which posteriorly intersects the oblong, depressed, more coarsely punctured, V-shaped basal area,

and is sometimes preceded by a shallow oblong depression. Scutellum triangular, bare. LElytra a little

wider than the prothorax, oblong-subcordate; narrowly striate, the striee with scattered moderately

coarse punctures, which are each enclosed in a large shallow fovea, the interstices closely and finely uni-

or biseriately punctate, 3, 5, 7, and 9 narrowly raised. Pygidium closely punctate, broad.in the 6,

narrower in the 9, furnished with a small tuft of fulyous hairs on each side at the tip. Beneath closely

punctate, the ventral excavation of the ¢ long and deep. Anterior and intermediate femora each with a

matted tuft of long hairs at the base and some shorter hairs between this and the apex. Tibi sinuate,

and fringed with long hairs towards the apex, within, the apical spur very long, the anterior pair with

a sharp subapical tooth on the inner edge. Anterior tarsi with the third joint very slightly widened

in the d.

Length 84-95, breadth 34-4 millim. (¢ 2.)

Hab. Mexico, Northern Sonora (Morrison).

Eleven specimens, all in dirty condition. Very like &. cicatistriatus, but with the

punctures of the elytral strie smaller and each surrounded by a large shallow fovea ;

the prothorax densely punctate, except along the incomplete raised median line ; the

third joint of the anterior tarsi of the male less widened. ‘The elytral sculpture cannot

be seen properly till the incrustation is removed. S. soltaui, Chittend., is a somewhat

closely allied form.

11. Sphenophorus ceesifrons.

Sphenophorus cesifrons, Gyll. in Schénh. Gen. Cure. iv. p. 959'; Chevr. Ann. Soc. Ent. Fr. 1885,

p. 109°.

3. Ventral excavation long, broad, and deep ; tibie hollowed along their outer half within.

Hab. Muxico!? (Mus. Brit.).

There is a single specimen (¢) of this species in the British Museum, agreeing

with the type. It is a small, oblong, black form, with the surface (except along the

middle beneath) covered with a brownish incrustation, partly hiding the sculpture.

The rostrum is rather short, stout, compressed, deeply sulcate at the base above, and

(as seen in profile) rectangularly dilated at the apex beneath. The prothorax is longer

than broad, densely, coarsely punctate, except along the smooth abbreviated median

YY 2

162 RHYNCHOPHORA.

line, and has a large, V-shaped, shallow depression on the basal half of the disc. The

elytra are rather short, rounded-subtriangular, finely striate, with the interstices flat

and finely uniseriate-punctate. ‘The tibie are strongly sinuate and feebly ciliate

within, and have a rather short apical claw. The anterior femora are clothed with

short hairs beneath. The third tarsal joint is narrow. 8. cwsifrons is extremely like

S. oblitus, Lec., but has the rostrum more deeply sulcate at the base, the prothorax less

dilated at the sides, and the tibiae armed with a subtriangular subapical tooth and a

much shorter claw at the apex.

12. Sphenophorus lutulentus, sp. n.

Oblong-oval, somewhat flattened above, opaque, nigro-piceous or black, the upper and under surfaces covered

with a pale brownish incrustation. Rostrum very stout, curved, compressed, about two-thirds the length

of the prothcrax, sharply angulate at the apex beneath (as seen in profile), the broad basal portion closely

punctate and deeply sulcate, the apical portion smooth at the sides, Prothorax a little longer than

broad, somewhat rounded at the sides, abruptly constricted in front, feebly sinuate at the base, the apical

margin also sinuate on each side; densely, coarsely, subconfluently punctate, excep’ along the narrow,

abbreviated, smooth, raised median line. Scutellum narrow, bare. Elytra slightly wider than the

prothorax, rounded-subtriangular; narrowly striate, the strie with small, widely scattered, rounded

punctures, the interstices flat, broad, each with one or two rows of minute punctures. Pygidium coarsely

punctate, closely ciliate at the apex in the , with a small tuft on each side at the tip inthe@. Beneath

and the legs somewhat closely punctate, the fifth ventral segment very coarsely punctured, unimpressed

in the g, the ventral excavation in this sex long and rather deep. Anterior and intermediate femora

and coxe each with a small tuftof hairs. Tibi fringed with short hairs and sinuate within, the subapical

tooth short, the apical spur long. Third tarsal joint narrow.

Length 10-104, breadth 34-4 millim. (¢ 9.)

Hab. N. Mexico, Paso del Norte (Hoge: @ ), Saltillo-in Coahuila (Wickham: ¢ ).

One pair, the male with the head and prothorax abnormally formed, both so closely

incrustate when captured that the sculpture could scarcely be made out*. The chief

characters of this species are, the short, stout, compressed, apically angulate, basally

sulcate rostrum; the coarsely, subconfluently punctured prothorax, with faintly

indicated smooth median line and abrupt subapical constriction; and the finely

striate, subcordate elytra. The Texan S. oblitus, Lec., is an allied form, with the sides

of the prothorax straighter behind, the tibie armed with a long subapical tooth, &c.

13. Sphenophorus sulcifrons.

Sphenophorus sulcifrons, Chevr. Ann. Soc. Ent. Fr. 1885, p. 110°.

Sphenophorus terreus, Jekel, in litt.’.

d. Ventral excavation broad, long, and deep, extending down the second segment, the fifth transversely

depressed at the apex.

Length 63-113, breadth 24-42 millim. (¢ 2.)

Hab. Mexico (Mus. Brit., Flohr), Toxpam (Sallé), Cordova, Vera Cruz, Jalapa,

Oaxaca (Hoge).

* They have since been cleaned with caustic potash.

SPHENOPHORUS. 163

The numerous examples received of S. swlcifrons, mostly from Vera Cruz, represent

two forms:—one (agreeing with the type) bare, shining, with numerous punctures

along the elytral stria, and the hairs on the legs partly or entirely wanting; the other

opaque (even when cleaned with caustic potash), more or less incrustate, with fewer

punctures along the elytral strive, and the femora and tibie conspicuously ciliate.

These forms have been received from the same locality and there can be no doubt

that they belong to one and the same species. It has the rostrum stout, compressed,

and moderately long, sharply dilated at the apex (as seen in profile), and the widened

basal portion deeply sulcate ; the prothorax sparsely, coarsely, unequally punctate; the

elytra with coarse, rounded, foveiform punctures placed along the narrow strie, and

the interstices somewhat coarsely uniseriate-punctate; the pygidium very coarsely

punctured, tumid down the middle, and hollowed on each side; the femora and tibi

more or less ciliate in both sexes; and the anterior tibie not produced at the outer

apical angle. The tumid pygidium and the deeper rostral sulcus separate S. sudcifrons

from S. callosus (Oliv.), and S. destructor and S. sublevis, Chittend., the last-mentioned

insect corresponding with the denuded examples of the present species.

14. Sphenophorus memnonius.

Sphenophorus memnonius, Gyll. in Schénh, Gen. Cure. iv. p. 935"; Chevr. Ann. Soc. Ent. Fr.

1885, p. 109”.

Sphenophorus simplex, Lec. Proc. Acad. Phil. 1859, p. 79°; Horn, Proc. Am. Phil. Soc. xi.

p. 412*; Chittend. Proc. Ent. Soc. Wash. vi. pp. 128, 130 (1904) °.

¢. Pygidium with a small tuft of hairs on each side at the tip. Ventral excavation very long and deep, the

fifth segment unimpressed as in the 2.

Length 74-11, breadth 24-4,!, millim. (¢ 2.)

Hab. Nortua Amertca, California?+, Utah?®—Muxico 1? (Lrugut, Mus. Brit.),

Guanajuato (Salle), Mexico city (Hoge, Wickham),° Guadalupe, Distrito Federal

(Wickham), Yucatan (Mus. Lrit.).

Var. The rostrum distinctly sulcate at the base; the elytra with broader and more coarsely punctured striz,

and the interstices in great part uniseriate-punctate ; the under surface more coarsely punctate, the fifth

ventral segment especially. (¢ 2.)

Hab. Muxtco, Aguas Calientes city (dye), Durango city (Wickham).

This is one of several Mexican forms related to the N.-American S. vomerinus,

Lec, It has a rather short, stout, compressed, apically widened rostrum (as seen in

profile), with the widened basal portion closely punctate, and finely sulcate; the

prothorax closely punctate, except along a narrow space down the middle, and without

trace of a more coarsely punctured V-shaped area at the base; the scutellum long,

narrow, and faintly sulcate ; the elytra narrowly, deeply, and rather coarsely punctate-

striate, with the alternate interstices irregularly bi-, and the others uni-, seriately

punctured (the punctures sometimes very fine); the anterior and intermediate femora

164 RHYNCHOPHORA.

each with a tuft of hairs at the base similar to that on the coxe; the tibie strongly

sinuate and fringed with long hairs within, the anterior pair (and sometimes the

intermediate pair also) with a sharp subapical tooth on the inner edge, the anterior

pair distinctly produced at the outer apical angle; the third tarsal joint small.

I have seen numerous specimens of S. memnonius (including the type) and one of

S. simplex, the latter kindly supplied by Prof. Chittenden ; the variety is represented

by three examples from each locality, one of them measuring only 64 mm.

15. Sphenophorus vomerinus.

Sphenophorus vomerinus, Lec. Proc. Acad. Phil. 1858, p. 811; Horn, Proc. Am. Phil. Soc. xiii.

p. 413°; Chevr, Ann. Soc. Ent. Fr. 1885, p. 107°.

Hab. NortH America, Colorado, Arizona, and California east of the Sierras 2.—

Mexico ®, Sonora (Wedd !).

The type of this species was from Sonora. The only specimens I have seen of it,

from Kansas and Arizona, belong to the var. baridioides, Lec. ; they have the elytral

interstices more coarsely punctate (the sutural one confusedly, and the others

uniseriately) than in any of the allied Mexican forms known to me. S. graminis,

Chittend., is very similar to S. vomerinus, but has more closely and less coarsely

punctured elytral interstices.

16. Sphenophorus incurrens. (Tab. VIII. figg. 5, 5a, 2.)

Sphenophorus incurrens, Gyll. in Schénh. Gen, Cure. iv. p. 957"; Chevr. Aun. Soe. Ent. Fr. 1885,

p-. 109°.

Sphenophorus glabripes, Chevr. loc. cit. p. 110°.

g. Ventral excavation long and deep, in some specimens very sparsely, in others more coarsely and closely,

punctate; fifth segment with a large, deep, subtriangular, very coarsely, rugosely punctate fovea at the

apex.

Q. Fifth ventral segment with a slightly smaller fovea.

Var, Above opaque, ferruginous, fusco-castaneous, or piceous, the prothorax sometimes with the oblique

tumid space on each side of the V-shaped, coarsely punctate, basal area, and an abbreviated median line,

black; the elytral interstices feebly convex or flat.

Length 63-10, breadth 24-32 millim.

Sphenophorus montlis, Gyll. loc. cit. p. 946*; Chevr. loc. cit. p. 109°.

Sphenophorus impressicollis, Sturm, in litt.°.

Hab. Mzxtco!~* (ex coll. Sturm, Truqui, Flohr), Puebla, Durasnal, Toxpam,

Capulalpam, Chiapas (Sallé), Matamoros Izucar, Mexico city, Cerro de Palmas,

Cordova, Misantla, Jalapa, Vera Cruz, Juquila, San Juan Bautista (Hoge), Omilteme,

Orizaba, Teapa (H. H. Smith), Toluca (Sallé, Hége, Wickham), Oaxaca (Mus. Brit.) ;

GUATEMALA, Guatemala city, Duefias, San Gerdénimo ( Champion), Tecpan (Conradt) ;

Costa Riva, Rio Sucio, Irazu, Caché (Rogers), La Palma (Biolley) ; Panama (Lemoine,

in Mus. Brit.).

SPHENOPHORUS. 165

Sent in abundance from various localities in Mexico and Costa Rica, the long series

connecting the three forms described by Gyllenhal and Chevrolat, whose types I have

seen: S. monilis is based upon reddish opaque examples with the elytral interstices

almost flat; S. gladripes upon a specimen (¢) with the coarse punctures on the

V-shaped basal depression of the prothorax continued forwards on each side in a

curved line to the oblong subapical excavation. The present species may be recognized

in all its varieties by the large, deep, rugosely punctate, subtriangular fovea on the

fifth ventral segment in both sexes. It has the rostrum rather slender, slightly

compressed, narrowly sulcate at the base, and angularly dilated near the apex beneath ;

the prothorax with a V-shaped depressed area at the base, an oblong depression

towards the apex, the sides, and often a fovea near the hind angles, very coarsely

punctate; the elytra with rows of oval or rounded fovee placed upon narrow strie ;

the tibie fringed with very short hairs, the anterior pair obliquely truncate at

the apex, and all with a very long uncus; and the third tarsal joint small. The

sculpture of the prothorax and elytra is variable. The opaque reddish form

(S. monilis) has only been seen from Mexico. SS. pontederiw, Chittend., from

Texas, &c. (two males of which are before me), is very closely related to the present

species, but differs from it in the subcylindrical rostrum, which is very feebly angulate

at the apex beneath, the much more coarsely punctured under surface, and the

shallower depression on the fifth ventral segment.

17. Sphenophorus quadrivittatus. (Jab. VIII. figg. 6, 6a, 2.)

Sphenophorus quadrivittatus, Gyll. in Schénh. Gen. Cure. iv. p. 962°; Chevr. Ann. Soc. Ent. Fr.

1885, p. 109”.

Sphenophorus bicolor, Jekel, in litt.’.

3. Anterior and intermediate femora more or less clothed with erect matted hairs along their lower face ;

; anterior cox with a large, and the other cox with a smaller, tuft of matted hairs; ventral excavation

very long and deep, sparsely, finely punctate, the fifth segment also hollowed down the middle from near

the base to the apex.

9. Anterior and intermediate femora each with a small pencil of hairs at the base, similar to that on

the coxe; fifth ventral segment transversely depressed at the apex.

Length 71,-9, breadth 23-32 millim.

Hab. Mexico !?3 (Mus. Brit. ; Truqui), Puebla (Sallé), Mexico city (Hige).

This is one of several similarly coloured Mexican forms. It has the prothorax

rufo-quadrivittate (the two narrow dorsal vitte sometimes wanting), with a coarsely

punctate, V-shaped, depressed area at the base; the elytra coarsely crenate-striate,

with the interstices flat or feebly convex, faintly uniseriate-punctate, and the alternate

ones (1, 3, 5, 7) often more or less infuscate or black; the apical portion of the

pygidium transversely depressed and coarsely punctate on each side of the raised

median line; the rostrum moderately stout, and (as seen in profile) angulate at the

apex beneath ; and the tibie fringed with long hairs in both sexes. I have not seen

166 RHYNCHOPHORA.

the type of S. quadrivittatus, but as Sallé’s specimens must have come from the same

source there is little doubt about the determination. ‘The above description of the

sexual characters is taken from the series obtained by Truqui, amongst which there

are three males.

18. Sphenophorus lineatus, sp. n. (Tab. VIII. fig. 7, 2.)

Very like S. quadrivittatus, black beneath, ferruginous above, the prothorax with three vitte on the disc, and

the elytra sometimes with the alternate dorsal interstices, infuscate or black; the legs ferruginous, the

femora striped or maculate with black. Jiostrum moderately stout, feebly curved, almost smooth,

angulate at the apex beneath (as seen in profile), feebly dilated just before the base, foveate

between the eyes, the basal portion not sulcate. Prothorax as in S. quadrivittatus, the elytra more

coarsely crenate-striate, with feebly convex interstices. Pygidium with the depressed spaces at the apex

still more coarsely punctate. Femora almost smooth, the anterior and intermediate pairs in both sexes

with a small pencil of hairs at the base similar to that on the coxe. Ventral excavation of the ¢ very

long and deep, almost smooth ; the fifth segment in both sexes transversely depressed at the tip and

coarsely punctured throughout, the other segments similarly punctate laterally.

Length 73-9, breadth 24-33 millim. (¢ 2.)

Hab. Mexico, Amula in Guerrero 6000 feet (H. H. Smith).

Three males and one female. The non-sulcate, coarsely punctate fifth ventral

segment, and the very small tuft of hair on the anterior and intermediate femora and

coxee, in the male, and the coarsely punctured fifth ventral segment in the female,

distinguish S. lineatus from S. quadrivittatus. The allied S.-American S. brunnei-

pennis, Germ. (stgnaticollis, Gyll.), has a longer and more coarsely punctured area on

the disc of the prothorax, the anterior and intermediate femora fringed with short hairs

beneath, the pygidium convex, &c.

19. Sphenophorus imus.

Sphenophorus imus, Gyll. in Schénh. Gen. Cure. iv. p. 936°; Chevr. Ann. Soc. Ent. Fr. 1885,

p. 109°.

g. All the femora along their lower face, a large patch on the anterior coxe, a smaller one on the inter-

mediate coxee, and a rather broad space down the middle of the fifth ventral segment, clothed with short,

decumbent, ochreous hairs ; tibie ciliate within ; ventral excavation long and deep, closely punctate.

¢@. Anterior and intermediate femora with a few hairs at the base, and the coxee of the same legs each with

a small tuft ; tibie fringed with shorter hairs.

Var. The prothorax with four narrow vitte, and the elytra with the alternate interstices, rufescent.

Length 6 ?-10, breadth 22-34 millim.

Hab. Mextco!? (Truqui, Flohr), Paso del Norte (Hége), Puebla, Izucar, Guanajuato

(Sallé), Toluca (£Hége), Durango city, Tepehuanes (Wickham).

I have seen nineteen specimens of this species, including the type, one of those

from Puebla (a ¢) and another from Toluca (a 2) having four faint vitte on the

prothorax and the alternate elytral interstices rufescent. S. imus may be known by

the rather long, slender, subcylindrical rostrum, with the widened basal portion not

sulcate; the relatively narrow prothorax, with an oblong, mesially interrupted,

SPHENOPHORUS.—PHRYNOIDES. 167

coarsely punctured area at the base; the punctate-sulcate elytra, with the interstices

flattened and very finely, irregularly seriate-punctate ; the more or less produced outer

apical angle of the anterior tibiz ; the small third tarsal joint; and the peculiar male-

characters. SS. imus has been recorded by Kirsch * from the Rio Grande do Sul and

Monte Video, probably in error.

20. Sphenophorus angustus. (Tab. VIII. figg. 8, 84, ¢.)

Sphenophorus angustus, Boh. in Schéuh. Gen. Cure. viii. 2, p. 250°.

g. Anterior coxe with a long, narrow, oblique tuft, and the intermediate coxe with a smaller tuft, of coarse,

matted, ochreous hairs; anterior and intermediate femora clothed with short hairs along their lower

face ; posterior tibis closely, and the other tibiee more sparsely, ciliate within; ventral excavation very

long and deep, coarsely, closely punctate, each puncture bearing a small ochreous scale, the fifth segment

unimpressed,

Q. Anterior and intermediate femora and coxe each with a small tuft of hairs, the posterior tibie less closely

ciliate.

Length 74-93, breadth 23-31, millim. (¢ 9.)

Hab. Mexico! (Mus. Brit., Flohr), Durango city (Wickham), Mexico city (Hége),

Real del Monte (Richardson).

This insect belongs to Horn’s Group I. of the genus. It has the prothorax com-

paratively smooth (the punctuation being very fine and scattered, except at the middle

of the base, where there is a cluster of coarser impressions) and narrow; the rostrum

subcylindrical, and with the widened basal portion convex; the scutellum narrow and

sulcate; the elytra with the strie narrow and rather coarsely punctate, and the

interstices flat and very finely uni- or biseriate-punctate; the prosternum sulcate down

the middle anteriorly; the anterior tibie produced at the outer apical angle ; and the

third tarsal joint narrow. The elytra are sometimes castaneous. I have seen six

examples of S. angustus (which is incorrectly treated by Chevrolat as synonymous with

S. cicatripennis), including the type. The two males before me agree perfectly inter se.

The long narrow streak of dense matted hairs on the anterior coxe is a remarkable

character in this sex.

Group CALANDRINA.

PHRYNOIDES.

Phrynoides, Chevrolat, Ann. Soc. Ent. Fr. 1885, p. 94.

This remarkable Tropical-American genus is said by Chevrolat to be related to

Crepidotus (of the Group Sphénocorynides of Lacordaire), but it seems to me to be

better placed amongst the “Calandrides vrais,” near Eugnoristus and Calandra. It

has the rostrum almost straight; the eyes contiguous beneath; the antennal club

moderately long, cylindrical, obliquely truncate at the tip, and with the basal joint

* Abhandl. Mus. Dresden, 1889, p. 55.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. ZZ

168 . RHYNCHOPHORA.

incrustate to near its apex; the scutellum broad and rounded; the elytra very broad,

subtriangular, and sparsely nodulose ; the pygidium subvertical; the mesothoracic

epimera angularly ascending ; the anterior coxe narrowly, and the intermediate coxe

widely, separated ; the intercoxal portion of the mesosternum angularly excised in the

middle ; the third tarsal joint broad, and spongy-pubescent beneath ; and the entire

body covered with a dense natural incrustation.

1. Phrynoides luteus. (Tab. VIII. figg. 9, 9a, 3.)

Phrynoides luteus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 95°.

¢. Rostrum rugosely punctate and feebly tricarinate to near the tip; metasternum and first ventral segment

very broadly and shallowly depressed down the middle.

9. Rostrum simply striato-punctate to the tip, the apical half bare and shining ; the metasternum and first

ventral segment flattened.

Length 74-8, breadth 4 millim. (Chevrolat gives 9 long, 5 broad).

Hab. Panama, Volcan de Chiriqui 2500-4000 feet (Champion).—Amazons, Pard 1.

One pair, a little smaller than the discoloured type, which I have seen. The elytra

(when cleaned) have the basal half of the disc brownish cinereous and the apical

portion reddish-brown, the latter becoming darker along the anterior edge.

CALANDRA.

Calandra, Clairville, Ent. Helv. i. p..62 (1798) ; Lacordaire, Gen. Col. vii. p. 301 ; Horn, Proc.

Am. Phil. Soc. xii. p. 480; Leconte, op. cit. xv. p. 832; Casey, Ann. N. York Acad. Sci. vi.

p- 685.

Sitophilus, Schénherr, Gen. Curc. iv. p. 967 (1837).

This genus, the type of which is C. granaria (L.), includes at present various

heterogeneous forms, and will have to be divided sooner or later. Two endemic and

three cosmopolitan forms are represented in the collections before me, the first-

mentioned having broad, and the other three narrow, metasternal side-pieces.

C. mexicana has a long antennal club, a broad, subcordate, prominent scutellum, &c.,

and it will doubtless have to be eliminated when further material is available for

examination.

1. Calandra granaria.

Curculio granarius, Linn. Syst. Nat. 10th edit. p. 378°.

Sitophilus granarius, Gyll. in Schénh. Gen. Cure. iv. p. 977°.

Calandra granaria, Leconte, Proc. Am. Phil. Soc. xy. p. 333°; Casey, Ann. N. York Acad. Sci.

vi. p. 686‘.

Sitophilus remotepunctatus, Gyll. loc. cit. p. 979°; Horn, Proc. Am. Phil. Soe. xiii. p. 431°;

Leconte, op. cit. xv. p. 833”.

Hab. Fere orbe terrestris.

Much less abundant than C. oryz@ in our region and as yet only seen from Mexico,

The type of S. remotepunctatus was from New York °.

CALANDRA. 169

2. Calandra linearis.

Rhynchophorus linearis, Herbst, Kafer, vii. p. 5, t. 100. fig. 11.

Sitophilus linearis, Gyll. in Schénh. Gen. Cure. iv. p. 979”.

Calandra linearis, Casey, Ann. N. York Acad. Sci. vi. p. 686°.

Calandra tamarindi, Christy, Trans. Ent. Soc. Lond. i. p. 36*.

Var. Cordyle striatus, Thunb. in Nova Acta Ups. vii. p. 112°.

Hab. Norts America, Atlantic States 9—Cosra Rica, San José (Biolley).—ANTILLES,

Cuba, Jamaica, St. Bartholomew?; Braziu (coll. Fry).—Invia, Bengal , &e.

There is a single specimen of this species amongst the Calandrids received by us

from the late P. Biolley. It is probably a native of India.

3. Calandra oryze.

Curculio oryze, Linn. Ameen. Acad. vi. p. 395 (1763) '.

Sitophilus oryze, Gyll. in Schonh. Gen. Cure. iv. p. 981°.

Calandra oryze, Horn, Proc. Am. Phil. Soc. xiii. p. 480°; Leconte, op. cit. xv. p. 333°; Casey,

Ann. N. York Acad. Sci. vi. p. 686 °.

Calandra zea-mais, Motsch. Etudes Ent. iv. p. 77 (1855)°; Casey, loc. cit. p. 686”.

Hab. Fere orbe terrestris.

A very variable and abundant insect, extremely destructive to maize *, often attacking

the grain in the fields before it is gathered. C. zea-mais is a large form of the same

species. In the Sallé collection there are three specimens from Belize of unusually

small size. Casey ® has described an allied form with anastomosing sinuous ruge on

the prothorax under the name C. rugicollis upon a single specimen from Florida.

4. Calandra setulosa. (Tab. VIII. figg. 10, 10a, ¢.)

Sitophilus setulosus, Gyll. in Schénh. Gen. Cure. iv. p. 969°.

Calandra setulosa, Gemm. & Harold, Cat. Col. viii. p. 2653 ”.

g. Rostrum coarsely, closely punctate, subcarinate, and more or less asperate, to the tip; first ventral segment

broadly depressed down the middle.

Q. Rostrum more slender, shining, smooth along the middle, becoming finely striato-punctate towards

the apex.

Hab. Muxico!2 (U.S. Nat.'Mus.), Toxpam (Sallé), Orizaba (Hoge), Cordova (Hoge ;

Knab, in U.S. Nat. Mus.); Guatemaua, Panzos (Conradt), Chacoj in Alta Vera Paz

(Champion) ; Honvuras (Mus. Brit.) ; Costa Rica, Caché (Rogers), Tablazo (Biolley),

Azahar de Cartago (Underwood), San Carlos (U.S. Nat. Mus.); Panama, Chiriqui (cod/.

Godm. & Salv.).—CoLoMBIA ; VENEZUELA.

Apparently not uncommon in the Mexican State of Vera Cruz. This species may

* Biolley notes that it also attacks an allied plant, the “ teosinte,” Huchlena (Rheana) lucurians, in Costa

Rica. This genus of grasses (cf. Biol. Centr.-Am., Botany, iil. p. 5] 2) is peculiar to America.

ZZ 2

170 RHYNCHOPHORA.

be recognized by its elongate form, the opaque, setulose upper surface, the line of

rather large yellowish-white scales along the sides of the prothorax, the oblong or

elongate similarly-coloured spots on the elytra (at the base and beyond the middle),

and the serrate inner edge of the tibia.

5. Calandra mexicana, sp.n. (Tab. VIII. figg. 11, 1la, 6, 3.)

3. Elongate, flattened, rather narrow, subopaque, almost bare; black, the antenne and tarsi obscure ferruginous.

Head closely punctate, separated from the rostrum by a transverse groove, which is foveate in the middle ;

rostrum very feebly curved, rather slender, nearly as long as the prothorax, cylindrical, sparsely,

obsoletely lineato-punctate, the short, dilated basal portion coarsely punctured; antennal club conico-

cylindrical, a little longer than joints 4—6 of the funiculus united. Prothorax longer than broad, rounded

at the sides, narrowed and constricted in front, truncate at the base; coarsely, densely, uniformly

punctate. Scutellum prominent, transversely cordate, rather large, smooth. FElytra about one-fourth

longer, but not wider, than the prothorax, very gradually narrowing from the rounded humeri, sub-

truncate at the apex; deeply punctate-striate, the interstices flat, not wider than the strie, and each

with a regular row of closely-placed, coarse, deep, oval or rounded punctures (fig. 110). Pygidium about

as long as broad, rounded at the tip, coarsely, closely punctate. Beneath very coarsely, closely punctate ;

first ventral segment hollowed down the middle. Legs rather short; femora and tibie coarsely

punctured, the tibiew feebly sinuate within, toothed at the inner apical angle, and with the apical claw

rather short; third tarsal joint broad, with a densely pilose space along the apical margin beneath.

Length 63, breadth 21 millim.

fab. Mexico, Zacualtipan in Hidalgo (Hoge).

One male. This species agrees with C. setulosa in having largely developed,

angularly ascending mesothoracic epimera and broad metathoracic episterna; but the

antennal club is elongate, the scutellum is larger and transversely cordate, the

pygidium is shorter, and all the tibie are toothed at the inner apical angle. The

large, ascending mesothoracic epimera, the less developed metathoracic episterna, the

transverse scutellum, the long antennal club, &c., separate C. mexicana from Metamasius

submaculatus and its allies.

Group LITOSOMINA.

TOXORRHIN US.

Toxorhinus, Lacordaire, Gen. Col. vii. p. 804 (1866).

The type of this genus is Sitophilus banonii, Guér., from Cayenne, a species ranging

to as far north as the Isthmus of Panama, whence I have recently seen an example

captured by Mr. Busck in 1907.

1. Toxorrhinus banoni.

Sitophilus banonit, Guér. in Icon. Régne Anim. p. 1727,

Toxorhinus banoni, Lacord. Gen. Col. vii. p. 805, Atlas, p. 27, t. 76. figg. 5,54.

Hab. Panama, Tabernilla, Canal Zone (Busck, in U.S. Nat. Mus.).—Sovutu AMERICA,

Ecuador, Cayenne! 2, Brazil.

TOXORRHINUS.—ORTHOGNATHUS., 171

An insect easily recognizable by its narrow form, the very long and slender rostrum,

the long legs and antenne, and the slender, elongate, X-shaped, white mark common

to the prothorax and elytra, the prothorax along the sides and at the lower part of the

flanks, and the metathoracic episterna, also albo-lineate.

Group SIPALINA.

Sipalides, Lacordaire (part.).

Calandride subfam. Rhinide, Leconte.

Under this group are included the Calandrids with the pygidium covered by the

elytra. The African Sclérocardiides have a 7-jointed funiculus, and also differ in other

respects from the Sipalides of Lacordaire, and they will probably have to be assigned

a different position.

Sect. ORTHOGNATHIDES.

Orthognathides, Lacordaire.

ORTHOGNATHUS.

Orthognathus, Schonherr, Gen. Cure. iv. p. 812 (1838) ; Lacordaire, Gen. Col. vii. p. 311.

Sphenognathus, Schonherr, op. cit. vill. 2, p. 215.

This genus was based upon a remarkable insect from Brazil. Mesocordylus sub-

parallelus, Chevr., also belongs to it, differing from the type, O. lividus, in the armature

of the inner apical angle of the tibie. ‘The sexual distinctions are feebly developed

in both of them.

1. Orthognathus subparallelus. (Tab. VIII. figg. 12, 124, 4, 3.)

Mesocordylus subparallelus, Chevr. Bull. Soc. Ent. Fr. 1880, p. exxiv*.

‘Calandra crenatosulcata, Sturm, in litt.’.

3. Rostrum interruptedly bisuleate above; tibize fringed with long hairs within.

@. Rostrum smoother and narrower, the sulci shallower or almost obsolete; tibiee more sparsely ciliate

within.

Length 64-15, breadth 22-6 millim.

Hab. Mexico (ex coll. Sturm?, Mus. Brit.), Refugio in Durango (/ége), Toxpam

(Sallé!); Guatemata (Sal/é), Cacao near Trece Aguas (U.S. Nat. Mus.), Paraiso

(Champion), Coban (Conradt) ; Nicaragua, Chontales (Janson) ; Costa Rica (Mus. Brit.),

San José (Biolley); Panama, Volcan de Chiriqui (Champion).

The twenty-five specimens of this insect before me vary enormously in size. It differs

from the S.-American 0. lividus, Gyll., in having the anterior tibie unemarginate at

the tip, and all of them armed with an acute, rather broad, obliquely truncated, claw

at the inner apical angle, the basal joint, too, of the posterior tarsi is less dilated. The

posterior tibie (fig. 126*) are much widened towards the apex. ‘he first ventral

* The outer face of the tibiz is shown.

172 RHYNCHOPHORA.

segment is unimpressed in both sexes. According to Chevrolat! “cette espéce vit

d’excréments humains.” He mistook the porrect mandibles for part of the rostrum.

O. subparallelus has long been known in collections under the name of Mesocordylus

immundus, Er., a Peruvian insect with the elytral interstices “ griseo-leprosis.” It

superficially resembles 1/7. memnonius (Fahr.).

Sect. SIPALIDES.

Sipalides vrais, Lacordaire.

MESOCORDYLUS.

Mesocordylus, Lacordaire, Gen. Col. vii. p. 814 (1866).

This genus includes the Tropical-American forms placed under Stpalus by Schénherr.

Six are known to me from within our limits. They may be separated thus :—

a. Body depressed above, comparatively broad ; rostrum not constricted at the

base; elytra opaque, incrustate, rather deeply punctate-striate, the interstices

each with one or two rows of closely placed granules down the middle . . striatus, Boh.

b. Body more elongate, rather convex, subcylindrical.

a’. Rostrum not constricted at the base; elytra finely punctate-striate, the

interstices each with a widely scattered row of rather large, rounded,

griseous spots; legs very slender. .

b’. Rostrum constricted at the base; legs stouter.

a’, Elytra faintly striate, the interstices with comparatively large, scattered,

~ ee ee ew we. gracilis, sp. n.

rounded, griseous or whitish spots, the rest of the surface bare. . . subulatus, Germ,

6°. Elytra uniformly incrustate, finely punctate-striate, the interstices each

with a row of small vesiculiform spots . . . . . . . we, pustulosus, sp. n.

c’, Elytra rather deeply punctate-striate, the interstices with numerous

minute griseous spots.

a’. Rostrum shallowly bisulcate, the griseous spots on the elytra uni-

seriately arranged laterally . . 2. 2. 2... bracteolatus, Boh.

6°. Rostrum not sulcate, the griseous spots on the elytra less numerous

and more irregularly arranged. . . . . . ww... dispersus, sp. 1,

1. Mesocordylus striatus, (Tab. VIII. figg. 13, 134, ¢.)

Sipalus striatus, Boh. in Schénh. Gen, Cure. iv. p. 8057.

Mesocordylus striatus, Lacord. Gen. Col. vii. p. 315, nota’.

Hab. Panama (Mus. Brit. ; U.S, Nat. Mus.).—Sovra Ammrica, Cayenne, Peru.

I have seen three specimens of this species from Panama, all males. It is shorter

and more depressed than the allied forms; the prothorax is strongly rounded at the

sside, and bare, shining, and rather sparsely punctate on the disc; the elytra have deep,

MESOCORDYLUS. . 173

finely punctate striz, separated by broad interstices, the latter with one or two rows of

small, closely placed granules down the middle; the rostrum (¢) is broad for three-

fourths of its length, and then abruptly narrowed, and closely punctate to the tip.

The surface (the disc of the prothorax excepted) is in great part covered by a thin,

natural, opaque, brownish incrustation.

2. Mesocordylus gracilis, sp.n. (Tab. VIII. figg. 14, 14a, ¢.)

3. Moderately elongate, narrow, subcylindrical, opaque, piceous, the elytra and legs fusco-castaneous, the

punctures with a griseous incrustation. Head closely punctate; rostrum stout, curved, a little shorter

than the prothorax, not constricted at the base, unimpressed above, coarsely, confluently punctate to the

tip, sharply carinate between the rounded pterygia. Prothorax about as broad as long, obliquely narrowed

anteriorly and posteriorly, feebly constricted in front, and sharply margined at the base; closely,

confluently punctate, except along the abbreviated slightly raised median line. Scutellum small,

flattened. Elytra moderately long, wider than the prothorax, convex, subparallel in their basal half;

finely punctate-striate, the interstices broad, flat, each with a row of from 5-9 widely scattered, rather

large, rounded, griseo-incrustate foves. Legs very slender, the tibia fringed with a few short

scattered hairs.

Length 54, breadth 13 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One male, somewhat immature. Less elongate and much smaller than the

S.-American WM. papulatus (Fahr.) (the type of which I have seen in the Sommer

collection), the prothorax shorter, the rostrum sharply carinate anteriorly, the legs

very slender. The scattered griseo-inerustate foveze on the elytra are very conspicuous

and appear to be raised at first sight, but less so than in I/. leprosus (Boh.).

3. Mesocordylus subulatus. (Tab. VIII. figg. 15, 15a, ¢.)

Calandra subulata, Germ. Ins. Spec. nov. p. 301°.

Sipalus subulatus, Boh. in Schénh. Gen. Cure. iv. p. 806°.

Hab. Nicaracua (Sailé), Chontales (Belt, Janson) ; Cosa Rica, San Carlos (U.S. Nat.

Mus.) —Sovutu America, Brazil! ?, Peru.

Nicaraguan and Costa Rican specimens of this species have the scattered, rounded,

whitish, asymmetrically arranged spots on the elytra a little larger and not quite so

numerous as in most of the South-American examples I have seen. The rostrum is

arcuate, constricted at the base, and closely punctate to the tip, the apical portion

being much smoother in the female. The elytra are obsoletely striate, the striz

impressed with scattered fine punctures. The tibie are feebly ciliate in the male. The

length varies from 93-18, and the breadth from 3-6 millimetres.

4. Mesocordylus pustulosus, sp. n. (Tab. VIII. figg. 16, 16 @, 3.)

g. Elongate, subcylindrical, rather convex, black, coated with a natural, subopaque, pale greyish-brown

incrustation, the head only bare and shining. Head sparsely punctate, shallowly foveate between the

eyes ; rostrum stout, curved, a little shorter than the prothorax, constricted at the base, unimpressed.

174 RHYNCHOPHORA.

above, closely, confluently punctate to the tip, the apical portion as wide as the basal. Prothorax longer

than broad, rounded at the sides, constricted in front, and sharply margined at the base; very coarsely,

irregularly punctate. Scutellum rather large, oval. Llytra elongate, a little wider than the prothorax,

subparallel in their basal half; finely punctate-striate, the interstices flat, broad, each with a row of

scattered, small, irregularly placed, vesiculiform prominences (those on the first becoming more numerous

on the apical declivity) and with some fine uniseriately arranged punctures visible between them.

Beneath sparsely punctate; metasternum and first ventral segment broadly and shallowly depressed

down the middle. Legs moderately stout, the tibie fringed with short hairs.

Length 14, breadth 43 millim. .

Hab. Nicaraaua, Chontales (Belt).

One male. This species is related to the S.-American Uf. sphacelatus (Boh.) (the

type of which I have seen), but it has the vesiculiform prominences on the elytra

smaller, more numerous (about 8-12 on each interstice), and somewhat regularly

distributed, a less rugose prothorax, &c. The surface is coated with a natural

incrustation * much as in Sphenophorus equalis, Gyll.

5. Mesocordylus bracteolatus, (Tab. VIII. figg. 17, 17a, 2.)

Sipalus bracteolatus, Boh. in Schénh. Gen. Cure. iv. p. 809}.

¢. Rostrum constricted at the base; the basal portion very coarsely punctate, somewhat flattened, more or

less raised or subcarinate down the middle, and shallowly sulcate on each side of this; the apical portion

closely punctured. ‘Tibia sparsely fulvo-ciliate within. First ventral segment more or less depressed

down the middle.

Q. Rostrum with the apical portion smoother and a little narrower.

Length 74-193, breadth 22-64 millim.

Hab. Mexico (Mus. Brit.; Truqui), Toxpam (Sallé), Vera Cruz (coll. Chevrolat '),

Motzorongo, Amatan, Tumbala (flohr); British Honpuras, Rio Sarstoon (Blancaneaua) ;

Costa Rica, San José, La Uruca (Biolley).

Apparently not rare in Mexico. This species is chiefly recognizable by the shallowly

bisulcate, subcarinate, basally constricted rostrum, the coarsely punctured prothorax,

and the numerous minute griseous spots along each of the elytral interstices, these

being uniseriately arranged on the outer part of the disc and often becoming more

crowded and biseriate towards the suture. In one very small narrow example from

Tumbala the disc of the prothorax, and also the median portion of the under surface,

is comparatively smooth.

6. Mesocordylus dispersus, sp. n. (Tab. VIII. figg. 18, 18 @, ¢.)

Lixtremely like M. bracteolatus, but differing as follows:—Rostrum relatively broader, very coarsely, confluently.

punctate, without trace of sulci in either sex, more or less flattened or depressed behind the middle ;

elytra with the minute griseous spots not quite so numerous and more irregularly arranged over the

whole surface, usually clustered into two rows along the first (sutural) interstice; tibia more closely

fringed with fulvous hairs within in the ¢.

Length 124-253, breadth 4-8 millim. (¢ 2.)

* The specimen has been cleaned with caustic potash, which does not remove the incrustation.

MESOCORDYLUS.—YUCCABORUS. 175

Hab. British Honpuras, Rio Sarstoon (Llancaneaux) ; Nicaracua, Chontales (Belt,

Janson) ; Costa Rica, San Carlos (U.S. Nat. Mus.) ; Panama (coll. Pascoe)—CoLoMB1a,

Buenaventura (Rosenberg); ? Perv.

Numerous examples of this insect have been obtained from Chontales, and it differs

constantly from M. bracteolatus as stated above, the rostrum in the latter being

conspicuously raised or carinate down the middle towards the base in both sexes.

The allied J. rugicollis and M. cylindraceus (Boh.) are described as having the

rostrum unconstricted at the base, and IM. celomerus, Chevr., sulcate elytra and

nigro-pilose tibize.

YUCCABORUS.

Yuccaborus, Leconte, Proc. Am. Phil. Soc. xv. p. 331 (1876) ; Casey, Ann. N. York Acad. Sci.

vi. p. 687 (1892).

This genus, the type of which is Rhina frontalis, Lec., is very nearly related to the

S.-American Harpacterus, Schonh., but differs from it in having the eyes widely

separated above, the prothorax truncate at the base, and the scutellum unimpressed.

In Y. lentiginosus, Casey, the elytra are asymmetrically maculate, much as in

H. quadrisignatus, Boh.*, except that the whitish spots in the latter are condensed

into larger patches below the base and towards the apex.

The four described species are from the Southern United States or Mexico; the type

was found under the bark of Yucca in the Mojave Desert.

The larva has been figured by Wickham [Journ. New York Ent. Soc. iv. p. 123, t.9.

fig. 123 (1896) ].

1. Yuccaborus lentiginosus. (Tab. VIII. figg. 19,194, 2.)

Yuccaborus lentiginosus, Casey, Canad. Ent. xxxvi. p. 823 (1904) *.

Hab. Norta America, Brownsville in Texas 1-—Mexico, Orizaba (Sal/é).

There is a single (¢ ) example of a Yuccaborus from Orizaba in the Sallé collection

that I am unable to separate from the series of Y. lentiginosus (3 ?) sent us by

Mr. Wickham. The rostrum is shorter and still more strongly asperate, the prothorax

has a broader polished space on the middle of the disc, the irregularly-distributed

whitish rounded spots surrounding the interstitial punctures on the elytra are a

little more scattered, and the first ventral segment is more feebly excavate, than

in the male of the Texan insect; but these differences are individual rather than

specific.

* To judge from the supposed type of H. ebeninus, Boh., in the Sommer collection, it is probable that it will

prove to be a discoloured greasy example of H. quadrisignatus. An allied undescribed form occurs in Ecuador.

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 7, October 1910. 9AA

176 RHYNCHOPHORA.

2. Yuccaborus sharpi.

Yuccaborus sharpi, Casey, Ann. N. York Acad. Sci. vi. p. 688°.

Hab. Mexico, Guerrero (Baron ').

Unknown to me. ‘The species was described from a single specimen, and it is said

to differ from Y. frontalis in its stouter form, more polished integuments, less prominent

humeri, &c. The immaculate elytra separate it from Y. lentzginosus.

RHINA.

Rhina, Latreille, Hist. Nat. Crust. et Ins. iii. p. 198 (1802) ; Schonherr, Gen. Cure. iv. p. 790 ;

Lacordaire, Gen. Col. vii. p. 316. .

The American and African species of this genus are very closely allied, and all of

them vary enormously in size, much as in certain genera of Brenthide. The males, as

is well known, have a dense brush of fulvous hairs on the rostrum and the anterior legs

more or less elongated. &. barbirostris is replaced in the Antilles by 2. scrutator

(Oliv.) *, which has the anterior tibiz ciliate in the male as in the African R. nigra +.

1. Rhina barbirostris. (Tab. VIII. figg. 20 ¢, 21 2, rostrum.)

Curculio barbirosiris, Oliv. Ent. v. no. 83, p. 232, t. 4. figg. 37, a, b*.

Rhina barbirostris, Latr. Hist. Nat. Crust. et Ins. xi. p. 102°; Fahr. in Schénh. Gen. Cure. iv. p. 792°.

Rhina ebriosa, Fahr. loc. cit. p. 791 *.

Rhina costalis, Fabry. loc. cit. p. 793°.

Rhina affaber, Fahr. loc. cit. p. 794°.

Length (excl. rostr.) 18-40, breadth 4-12 millim. (¢ 9.)

Hab. Mexico *® (Flohr), Playa Vicente (Sallé), Actopan, Jalapa (Hoge); Britisu

Honpuras (Blancaneaux); GuateMaLa, Panzos, El Reposo (Champion); Nicaragua,

Matagalpa (Richardson) ; Panama (coll. Fry), Bugaba, Volcan de Chiriqui (Champion\.

—SoutH America to Brazil !25, Trinidad.

A common insect in the warmer parts of Central America, but apparently local, to

judge from the limited number of localities whence specimens have been obtained. It

is extremely variable in size {, and in the corresponding development of the rostrum,

antenne, and legs in the males. Examples of the same size from Mexico and Brazil

agree perfectly inter se, and there is no reason whatever for separating the large

Mexican examples (£. ebriosa) from those from Brazil. . affaber (as already noted

by Chevrolat §) and &. costalis are small forms of the same species. It is unnecessary

to give the full synonymy here, for which Schénherr’s work * must be consulted.

* We have a pair of this species from the Flohr duplicates labelled as from “ Mexico,” but there must have

been some mistake in labelling.

7 Iam unable to detect any difference between R. afzelii, Fihr., and R. nigra (Drury), when specimens

of the same size are compared.

< Cf. Blandford, Proc. Ent. Soc. Lond. 1894, Pp. XViil. § Ann. Soc. Ent. Fr. 1885, p. 112.

DYNAMIS.—METAMASIUS. 177

The following additional species or varieties of Calandrine have been seen from

within our limits since the publication of the preceding pages :—

DYNAMIS (p. 79) *.

3. Dynamis borassi.

Calandra borassi, Fabr. Syst. Eleuth. ii. p. 480°.

Rhynchophorus borassi, Gyll. in Schénh. Gen. Cure. iv. p. 818’.

Dynamis borassi, Chevr. Ann. Soc, Ent. Fr. 1882, p. 563°.

Hab. Panama, Chiriqui (T7rétsch, ex Staudinger) —Sovutn America ! 2, Cayenne °.

A single example (2) of this species from Chiriqui is contained amongst some

Calandrids recently sent me by Herr A. Bang-Haas. It may be readily known by

its shining, polished surface, the obliteration of the outer striz of the elytra (the five

deep sulci being thus very conspicuous), and the long, narrow, carinate exposed portion

of the scutellum. In this species the rostrum of the male varies greatly in length,

and it is shorter and more slender in the female than in the male. The female

has all the tibie, and the intermediate femora only, densely fimbriate, a character not

mentioned by Gyllenhal.

CACTOPHAGUS (p. 82).

Cactophagus rufocinctus (p. 86).

In the Dresden Museum + there is a Cactophagus (6) from San Carlos, Costa Rica,

that must be treated as a variety of C. rufocinctus; it is rufous spotted with black,

like the Colombian C. tibialis (Waterh.), from which it differs in wanting the dense

tuft of longer hairs on the intermediate tibiz in the male. The allied C. cerratus is

almost equally variable in colour.

METAMASIUS (p. 103).

10(4). Metamasius cinnamominus. (Tab. IX. figg. 1, 1a, ¢.)

Calandra cinnamomina, Perty, Del. Anim. Art. Bras. p. 82, t. 16. fig. 13 (?)°.

Sphenophorus cinnamomeus (sic), Gemm. & Harold, Cat. Col. viii. p. 2647 *.

Sphenophorus obsoletus, Gyll. in Schénh. Gen. Cure. iv. p. 895° ; viii. 2, p. 288°.

Metamasius obsoletus, antea, pp. 103, 112’.

Hab. Honpuras (ex Staudinger).—CoLoMBIA 4. Guiana?4; Braziu}.

A single male, agreeing exactly with Gyllenhal’s type of S. odsoletus. It has the

_ rostrum deeply sulcate, setulose, and dilated into a stout, blunt, tooth-like prominence

on each side between the points of insertion of the antenne, beneath, and the posterior

tibie armed with a small triangular tooth on the inner edge at about the middle.

* Erratum: D. germari (p. 80). For “ originally described from an introduced example of the same sex

found at Boston!” read “described by Gyllenhal from an introduced example of the same sex found at

3 99

Boston °.

+ Dr. Heller has also sent me a small male of Homalostylus dentirostris (anted, p. 118) for determination ;

it is from Turrialba, Costa Rica, the types were from Mexico.

2 AAZ

APPENDIX TO THE CURCULIONINA.

Since the conclusion of Vol. IV. pts. 4 and 5, and of the earlier portion of pt. 7

(pp. 1-78), of this series*, various additional species belonging to the Subfamily

Curculionine have come to hand, including a representative of the group

“Gymnetrina,” from Northern Mexico, and several new Hilipus, Anthonomus, Cholus,

Erethistes, Cratosomus, &c., from more southern localities, sufficient to make a short

Appendix desirable. Corrections to the synonymy (some of which have already been

mentioned in scattered footnotes, &c.), and additional localities for several species

(a few of which had been described from single examples), are also noted.

Vol. IV. pt. 4.

HYLOBIINA.

HILIPUS (pp. 7, 715).

Hilipus cruciatus (p. 9). (Tab. IX. fig. 2, var.)

Amongst the specimens of this species in the British Museum there is one from

“‘ Mexico” with the white markings on the elytra reduced to three oblique fascize and

a transverse spot below the shoulder.

Hilipus fenestratus (p. 10).

To the locality given, add :—MeExico, Colonia (Flohr, in coll. Fry).

Hilipus limbatus (p. 11).

To the locality given, add :—Mexico (ea coll. Solari).

We are indebted to Signor Solari for a Mexican representative of this species,

described from a single example from Chiriqui. He also has H. albopictus from —

Mexico, which again was described from a single specimen.

* Part 6 is devoted to the Brenthidw, Scolytide, and Anthribide.

RHYNCHOPHORA : CURCULIONIN &. 179

6(a). Hilipus trifurcatus, sp.n. (Tab. VIII. fig. 22, 3.)

¢. Elongate, narrow, shining, the prothorax dull, except along the incomplete smooth median line, black ;

the rostrum, legs, prothorax, and apex of the elytra clothed with scattered fine, hair-like, white scales,

the sides of the prothorax and the tip of the elytra with narrow minute bluish scales intermixed ; the

elytra each with two dense patches of rather broad, imbricate, white scales on the dise—one extending

down the basal third, trifurcate within and extending broadly outwards posteriorly, the other transverse,

undulate, and excised behind, at about one-fourth from the apex. Head foveate between the eyes;

rostrum stout, feebly curved, somewhat closely punctate to near the tip, and with indications of a smooth,

raised median line. Prothorax narrow, longer than broad, gradually narrowed anteriorly, deeply

bisinuate at the base; very sparsely, finely punctate, the interspaces alutaceous. Elytra very elongate,

one half wider than the prothorax; rather finely seriate-punctate, the interstices flat and subalutaceous.

Ventral segments 1 and 2 broadly sulcate down the middle.

Length 151, breadth 5 millim.

Hab. Panama, Chiriqui (coll. Fry, in Mus. Brit.).

One specimen. Longer and narrower than H. hieroglyphicus; the rostrum much

longer; the prothorax relatively narrower and without submarginal vitta ; the elytra

with a somewhat similarly-shaped, inwardly trifurcate, white streak at the base, the

subapical markings reduced to a transverse undulate fascia; the ventral excavation ( ¢ )

long and deep.

Hilipus collectus (p. 14). (Tab. IX. fig. 3, var.)

We are indebted to Dr. K. M. Heller for a variety of this insect, from Tucurrique,

Costa Rica (ea coll. Schild-Burgdorf), with the elytral markings reduced to a few small

spots—one at the base, two, placed obliquely, at the sides before the middle, two,

also obliquely placed, on the disc towards the apex, and three or four (still smaller)

along the sides beyond the middle. ‘This insect (¢) also has the prothorax longi-

tudinally grooved at the middle of the basal margin (? accidental), and it may have to

be separated from the Nicaraguan H. collectus when further specimens are available

for examination.

Hilipus spinipennis (p. 716).

To the locality given, add :—Nicaraeua (Belé, in coll. Fry).

One specimen, differing very little from the Costa Rican type.

47 (a). Hilipus patens, sp.n. (Tab. VIII. figg. 23, 23a, 2.)

. Oblong-ovate, broad, black, the antenne, apices of the tibie, and tarsi ferruginous or obscure ferruginous ;

above (the granules excepted) thickly clothed with small reddish-brown scales, the elytra each with a

very large, elongate-triangular, velvety-brownish-black patch on the outer part of the disc at about the

middle, the patch bordered along the inner edge by a pallid line, which shows a tendency to coalesce

with a similarly-coloured oblique line running down the sides of the prothorax posteriorly on to the

humeri, the inner part of the disc of the elytra also streaked with brownish-black, the scutellum and

prothorax with whitish or ochreous scales intermixed, the eyes bordered with a narrow line of pallid

scales; the legs and under surface sparsely clothed with long, hair-like, ochreous scales. Head foveate

between the eyes, closely punctate; rostrum stout, almost straight, about as long as the head and

180 APPENDIX.

prothorax, closely punctate, except down the middle and on the apical portion. Prothorax transverse,

rounded at the sides, constricted and much narrowed in front, deeply bisinuate at the base; coarsely,

rather closely granulate. Elytra broad, parallel at the base; seriate-punctate, the interstices each with

an interrupted series of somewhat closely placed large and small smooth granules. Tibiz mucronate at

the inner apical angle.

Length 14, breadth 6% millim.

Hab. Nicaraava, Chontales (Janson, in coll. Fry).

One specimen. Closely related to the somewhat widely distributed H. intensus,

Pasc., but easily separable therefrom by the more elongate, differently-shaped, velvety

patch on the elytra, the pateh bordered along the inner edge only by a pallid line

(the line extending sinuously forwards on to the prothorax), the coarser and closer

granulation of the surface, &c.

HILIPINUS (pp. 51, 718).

19. Hilipinus biannulatus, sp. n. (Tab. VIII. figg. 24, 24a, 2.)

@. Oblong-ovate, moderately shining, nigro-piceous ; the head with a line around the eyes, the prothorax

with a narrow, oblique, submarginal vitta on each side, the elytra each with two very large, loop-like,

subangular annuli on the disc (the anterior one extending forwards to the base and the other to the

apex), some small spots on the seriate punctures, and a sinuous streak along the outer margin towards

the apex, and the sides of the body beneath with various streaks and small spots, densely clothed with

imbricate ochreous scales ; the legs and under surface with small scattered hair-like scales. Rostrum

moderately stout, curved, about as long as the head and prothorax, somewhat closely punctate. Prothorax

strongly transverse, obliquely narrowing from the base, the latter feebly bisinuate; sparsely granulate

and feebly carinate, the interspaces shallowly, minutely punctate. Elytra moderately elongate, broadly

produced at the apex, sinuate at the base, the humeri obliquely truncated and projecting a little forwards ;

seriate-punctate, feebly granulate at the base and apex, the interstices excessively minutely punctate, the

punctures each bearing an extremely minute fuscous scale. Tibi: mucronate at the inner apical angle,

the claw arising from about the middle of the apical margin.

Length 12, breadth 44 millim.

Hab. Panama, Chiriqui (coll. Fry, in Mus. Brit.).

One specimen. ‘This species superficially resembles Hilipus areolatus (except that

it has only two large ochreous subangular annuli on each elytron), but differs from it

in the mucronate inner apical angle of the tibia, the excavate base of the elytra, &c.

The rostrum is doubtless bisulcate beneath in the male,

TELYS (p. 61).

Telys bisinuatus (p. 62).

In the male of this species the anterior coxe are sharply toothed within, a character

not noted in the description, the genus thus showing an affinity with Ischiomastus,

Kirsch (cf. antea, p. 1, nota).

RHYNCHOPHORA : CURCULIONIN A. 181

ISCHIOMASTUS.

Ischiomastus, Kirsch, Abhandl. Zool. Mus. Dresden, 1888-89, no. 4, p. 27; Faust, Stett. ent.

Zeit. 1893, p. 6.

Lizomorpha, Champ. antea, iv. 4, p. 62 (1902).

This correction in the synonymy has already been briefly noted on p. 1 of the

present volume.

I. marginatus was omitted from our enumeration of the Hylobiina.

1. Ischiomastus albomarginatus.

Lizomorpha albomarginata, Champ. antea, iv. 4, pp. 63, 719.

2. Ischiomastus marginatus.

Ischiomastus marginatus, Faust. Stett. ent. Zeit. 1893, p. 10°.

Hab. Costa Rica [ ¢ ]4.—Cotomsia, Cauca Valley [ 2 ]!.

Dr. Heller has kindly communicated one of the types (the ?) of this species for

examination. It is allied to L. albomarginatus.

ANCHONINA.

DIOPTROPHORUS (p. 93).

Amongst some Dioptrophori recently sent us by Mr. Wickham, from Tres Marias

(Morelos) * and Salazar, Mexico, there is one specimen (from Tres Marias) perhaps

referable to D. ocularis, the type of which cannot now be found in the “Sommer”

collection. It is a little larger and broader than D. simplea, and has the prothorax

more uneven, more widened forwards, and abruptly constricted anteriorly.

CLEONINA.

LIXUS (p. 101).

15 (a). Lixus breviculus, sp. n.

$. Comparatively short, rather narrow, black, the antenna (joints 1-3 of the club excepted) and tarsi obscure

ferruginous; sparsely clothed with very fine cinereous pubescence. Head and rostrum densely, finely

punctate, the latter curved, stout, and a little shorter than the prothorax, the eyes somewhat prominent,

the head feebly foveate between them. Prothorax strongly transverse, gradually narrowing from the

base; densely, minutely punctate, with numerous coarser punctures intermixed, the disc slightly

depressed down the middle at the base and apex. Elytra very little wider than the prothorax, mode-

rately long, rounded at the tip; seriate-punctate, the interstices flat, densely punctulate, the scutellar

region transversely depressed, the disc also with a shallow rounded foveiform depression at about one-

third from the apex. Beneath densely, finely punctate, with a few coarser punctures intermixed ; first

ventral segment shallowly sulcate down the middle. Legs comparatively slender, the anterior femora

unarmed. Wings (apparently) wanting.

Length 8, breadth 23 millim.

* Mr, Wickham has also sent us an Anchonus very nearly related to A, granulatus from this locality. It

may represent yet another species of the genus.

182 APPENDIX.

Hab. Mexico, Mexico city (Hége).

One specimen. Near LZ. germari, but very much smaller and less robust, the

anterior femora simply clavate (not angulate as in LZ. germart), the eyes more

prominent, the prothorax densely punctate, the elytra more even, with small seriate

punctures and flat, closely punctulate interstices.

ILEOMUS (p. 113).

2. Ileomus extensus, sp.n. (Tab. VIII. figg. 25, 25a, 3.)

3. Subfusiform, moderately elongate, rather broad, black, the antenne obscure ferruginous ; sparsely cinereo-

pubescent, the pubescence clustered into dense patches on the elytra. Head minutely punctate, with a

few coarser punctures intermixed, foveate between the eyes; rostrum about as long as the prothorax,

feebly curved, moderately stout, very sparsely and finely, the sides more coarsely, punctate. Prothorax

transverse, rapidly, arcuately narrowing from near the base; very uneven, the disc with a large, deep,

horseshoe-shaped excavation extending to the base, and also closely, finely punctate, with scattered larger

punctures intermixed, the lateral portions coarsely varioloso-punctate. Elytra moderately long, wider

than the prothorax, strongly caudate at the apex, the scutellar region transversely excavate, the subapical

callosities almost obsolete ; seriato-punctate, the interstices flat, alutaceous, the spaces covered by the

pubescence densely, rugulosely punctate. First ventral segment deeply sulcate. Anterior femora only

dentate. Wings fully developed.

Length 15, breadth (at shoulders) 53 millim.

Hab. Mexico, “Sierra de Durango” (fHége, ex Solari).

One specimen, kindly presented by Signor A. Solari. Smaller, narrower, and less

robust than I. distinguendus, Boh., the rostrum less curved, the prothoracic excavation

deeper, the elytra less uneven, caudate at the apex, and with the subapical callosities

almost obsolete, the anterior femora only dentate. J. extensus forms a connecting-link

between Jleomus and Lixus.

CERATOPINA.

CERATOPUS (p. 123).

5 (a). Ceratopus maculicollis, sp.n. (Tab. IX. figg. 4, 4a, 3.)

3g. Obovate, somewhat depressed, moderately shining, nigro-piceous, the tip of the rostrum, the antenne

(the club excepted), and the apices of the tarsi ferruginous ; thickly clothed with very small dark brown

scales, the head, prothorax, scutellum, and legs, and the alternate interstices of the elytra at the base,

irregularly streaked or variegated with flavo-cinereous scales. Head and rostrum densely, finely

punctate, the latter moderately stout, feebly curved, a little longer than the head and prothorax united,

the eyes very large; antenna inserted near the tip of the rostrum, the club oblong-ovate. Prothorax

rather narrow, transverse, the sides arcuately converging anteriorly ; densely, finely punctate, with

indications of a narrow, raised, median line. Elytra much wider than the prothorax, comparatively

short, separately rounded at the apex, flattened on the disc at the base; finely punctate-striate, the

interstices feebly convex and densely punctulate. Tibie without visible claw at the apex.

Length 38, breadth 1,%, millim.

Hab. Nicaragua, Managua (Solaré).

RHYNCHOPHORA : CURCULIONIN &. 183

One specimen, kindly presented by its captor. Smaller, less elongate, and more

depressed than the allied forms, the elytra comparatively short, the base of the latter

and the disc of the prothorax cinereo-variegate, the tibiae (as in C. bisignatus) almost

unarmed at the apex.

ERIRRAINA.

SMICRONYX (pp. 129, 722).

Two species of this genus were sent many years ago to Dr. Sharp as from

“ Northern Sonora” by the late H. K. Morrison. They had not been seen by me

when our enumeration of the ‘‘ Smicronychides ” was published, and are apparently

referable to S. fulvus, Lec., and S. silaceus, Casey. An additional form from Nicaragua

has been recently communicated by Signor Solari.

1(a). Smicronyx latisquamis, sp.n. (Tab. IX. figg. 5, 5a, 6.)

Oblong-ovate, piceous ; densely clothed with large, broad, rounded, imbricate, pale brown scales (which have

a cupreous lustre when viewed in certain lights), with curled, stout, decumbent, white sete intermixed

(fig. 5b); the scales on the under surface also large, rounded, and whitish. Rostrum curved, rather

stout, a little longer than the head and prothorax united, closely punctate. Prothorax transverse,

rounded at the sides, closely punctate. Elytra much wider than the prothorax, moderately long,

subparallel at the base; narrowly punctate-striate, the interstices broad, flat, punctulate, each with

about two rows of large scales. Tarsal claws equal in length.

Length 2-24, breadth 1,'5 willim.

Hab. Nicaracva, Lago de Nicaragua (Solari).

Three specimens, probably including both sexes. Less elongate than the Mexican

S. tectus, the scales very large and imbricate, above and beneath, the curled white

decumbent sete conspicuous, the rostrum not nearly so stout.

TERIRES (p. 138).

A second species is provisionally added to this genus, differing from the type in the

longer and comparatively slender rostrum and the bisinuate base of the prothorax, but

agreeing otherwise with it in general structure.

2. Terires plurisetosus, sp.n. (Tab. IX. figg. 6, 6 a.)

Oblong-ovate, narrow, feebly shining, rufo-testaceous, the eyes black; thickly clothed with fine, decumbent,

hair-like, pallid scales, the elytral interstices each with a regular row of closely placed, coarser,

decumbent setiform scales. Head closely punctate; eyes large, strongly transverse, coarsely facetted ;

rostrum cylindrical, curved, slender, as long as the head and prothorax, very finely punctate, smooth

along the median line, the antenne inserted at the middle. Prothorax much broader than long, obliquely

narrowed anteriorly, the sides parallel at the base, the latter feebly bisinuate; closely, very finely punctate.

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. 2 BB

184 APPENDIX.

Elytra oblong, considerably wider than the prothorax, obsoletely punctate-striate, the interstices flat,

alutaceous, each with a row of rather coarse punctures.

Length 22, breadth 1 millim. (9 ?)

Hab. Guatemaa, Panzos in Alta Vera Paz (Champion).

One specimen. Slightly narrower than 7’. pilosus, the vestiture entirely decumbent,

the setiform scales along the elytral interstices closely placed, the rostrum longer and

much more slender, &c.

PSEUDODERELOMUS, gen. nov. (to follow the genus Phyllotroz, p. 146).

Mandibles bifid; rostrum much shorter than the prothorax, moderately stout, subeylindrical, feebly arcuate,

‘ the scrobes descending to beneath the eyes; eyes prominent, rather large, distant above and beneath;

antennee (fig. 27 5) inserted at about the middle of the rostrum, the scape clavate at the apex, the

funiculus short and composed of six closely-articulated joints (1 stout, 2-4 small, transverse, 5 and 6

very broad and strongly transverse, forming part of the club), the club large, abrupt, ovate, with the

polished basal portion (including joints 5 and 6 of the funiculus) about as long as the pubescent, sensitive,

annulate apical portion ; prothorax broad, closely fitting to the elytra, the base somewhat rounded at the

middle; scutellum small, narrow; elytra bluntly and separately rounded at the apex; pygidium

transverse, exposed; prosternum narrowly raised between the subcontiguous anterior cox, and with a

deep, transverse, arcuate, subapical groove ; intermediate and posterior coxe somewhat widely separated ;

ventral segments 1 and 2 connate at the middle, 1 about as long as the metasternum, 3 and 4 short, the

first suture sinuous, the others straight and deep; metathoracic episterna narrow ; legs very short;

femora stout; tibise straight, gradually widening outwards, unarmed at the inner apical angle, the

intermediate and posterior pairs truncate at the apex ; tarsi clothed with fine hairs beneath, broad, the

anterior pair wider than the others, the third joint strongly bilobed, the claws divergent, simple, small ;

body subelliptic, almost glabrous.

Type, P. bariditformis.

The single species referred to this genus has the facies of a small Barid, but the

mesothoracic epimera do not ascend upwards, and the insect cannot therefore be

included amongst the Barina. In general structure it seems to be most nearly related

to Derelomus and Phyllotrox *, differing from both of them in the 6-jointed funiculus

(with the last two joints so much widened as to form part of the large club) and the

bluntly separately rounded apices of the elytra, the transverse pygidium being thus

entirely exposed. The broad abrupt antennal club, the very short, closely articulated

funiculus, the short legs, and broad tarsi are characteristic.

1. Pseudoderelomus baridiiformis, sp.n. (Tab. VIII. figg. 27, 27 a, b.)

Rather convex, alutaceous, subopaque, black, the antenne (the club excepted), and the legs in part, ferruginous.

Head densely punctate; rostrum densely, rugulosely punctate, shallowly sulcate down the middle.

Prothorax broader than long, rounded at the sides anteriorly, feebly constricted in front; densely

punctate, sometimes with a smooth abbreviated median line. LElytra very little wider than the

prothorax, rather short, gradually narrowing from the middle to the obtuse, bluntly rounded apex;

finely punctate-striate, the interstices flat and faintly uniseriate-punctate. Beneath closely, finely

- punctate. Anterior tarsiin the $ wider than in the 2 and clothed with longer hairs beneath.

Length 13-2, breadth ;®,—-1 millim. (¢ @.)

* Corrigendum: In the remarks on Phyllotiow (p. 141, line 23) for 5 and 6” read “6 and 7.”

RHYNCHOPHORA: CURCULIONIN 2. 185

Hab. Mexico, Toxpam (Sallé); Britis Honpuras, Belize (Blancaneaux); GUATEMALA,

San Juan and Tamahu in Alta Vera Paz (Champion).

Ten specimens, these having been placed with the Barids when the collections under

examination were sorted. The outer joints of the funiculus are so closely articulated

that it is difficult to make out the exact number.

GYMNETRINA (to follow Extrrura, p. 147).

Gymnétrides, Lacordaire.

Cionini, Leconte (part.).

The members of this group are easily recognizable by their 5-jointed funiculus and

exposed pygidium.

MIARUS.

Miarus, Stephens, Ill. Brit. Ent. iv. p. 15 (1831) ; Lacordaire, Gen. Col. vii. p. 8; Leconte, Proc.

Am. Phil. Soc. xv. p. 221; Casey, Canad. Entom. xlii. p. 142 (April, 1910).

Colonel Casey has recently added four additional American species to this genus, one

of which has long remained unidentified in our collection.

1. Miarus erebus.

Miarus erebus, Casey, Canad. Entom. xlii. pp. 142, 143°.

Hab. Mexico, Ciudad in Durango 8100 feet (forrer), Colonia Garcia, Sierra Madre,

Chihuahua 7300 feet (Townsend 1).

The two specimens of this insect sent by Forrer agree very well with Casey’s

description, and with a co-type kindly presented by him. J. erebus is recognizable

amongst its American allies by the extremely long bristly vestiture intermixed with

decumbent hairs. The male has a less polished and rather shorter rostrum than the

female and the first two ventral segments distinctly hollowed down the middle.

ANTHONOMINA.

CIONOPSIS (p. 150).

Cionopsis palliatus (p. 151).

To the locality given, add :—Panama, Taboga I. (Champion).

Four specimens of this species were captured at Taboga Island. They are a good

deal smaller than the Guatemalan types.

2BB2

186 APPENDIX.

ANTHONOMUS (pp. 155, 722).

20(a). Anthonomus ciliaticollis, sp.n. (Tab. IX. figg. 7, 7a, 2.)

Subovate, narrow, convex, very shining, deep black, the base of the antennz, and sometimes that of the femora

also, ferruginous ; the basal margin of the prothorax, the scutellum, prosternum, and anterior cox, and

the sides of the body beneath, clothed with pure white hair-like scales. Head almost smooth, foveate

above the eyes ; rostrum rather slender, feebly curved, and about two-thirds the length of the body in the

9, shorter and more arcuate in the d, finely punctate laterally, smooth along the median line and

carinate towards the base, the antennz inserted at (2) or beyond(¢)the middle. Prothorax transverse,

obliquely narrowing from near the base, feebly constricted in front ; somewhat closely, finely, uniformly

punctate. Elytra much wider than the prothorax, comparatively short, transversely convex, parallel in

their basal half; rather coarsely punctate-striate, the interstices moderately convex, smooth, and bare.

Femora each with a small acute tooth.

Length 2-21, breadth 1-1,), millim. (¢ @.)

Hab. Panama, David, Bugaba (Champion).

One female from David and a pair from Bugaba, the last-mentioned having been

included by me under A. mexicanus (anted, p. 169). The completely glabrous elytra,

the finely punctured prothorax, with a fringe of pure white scales along the basal

margin, the more elongate rostrum in the female, and the dark legs, distinguish

A. ciliaticollis from all the varieties of A. mexicanus.

22. Anthonomus eugenii.

Anthonomus eugenii, Cano, La Naturaleza, (2) ii. pp. 877-379, t. 17 (1894).

Anthonomus eneotinctus, anted, iv. 4, pp. 169, 723, t. 10. figg. 5, 5 a (1903).

This insect proves to be the Pepper-weevil of the Southern United States and the

“ barrenillo” of Mexico. Cano’s name A. eugenii (as already pointed out by me in the

‘Entomological News’ for Oct. 1907, p. 366) will have to be used for it. A. eugenit,

however, is probably an extreme form of the very variable A. mexicanus, Boh.

Anthonomus annulipes (p. 175).

A second specimen of this species, in better condition than the Cuernavaca type, has

since been detected in our collection. It was found at Cordova by Hoge.

Anthonomus sulcipygus (p. 177).

To the localities given, add :—Nicaracua, Managua (Solar?).

Anthonomus melanostictus (p. 181). (Tab. IX. figg. 8, 8a, 3.)

To the locality given, add :—Nicaraeva, Managua (Solari).

We are indebted to Signor A. Solari for a beautifully fresh specimen of this insect,

from Managua, described from a single example from David. A figure of the species

is now given.

RHYNCHOPHORA : CURCULIONIN A. 187

Anthonomus fuscomaculatus (p. 186).

To the locality given, add :—Nucaragua, Managua (Sola7%).

This species, described from a single example from Tolé, has also been taken by

Signor Solari in Nicaragua. The type was somewhat immature.

Anthonomus texanus (p. 187).

Anthonomus pilosus, Dugés, in litt.

Mr. Pierce records having bred an example of this species from the buds of

Spheralcea angustifolia (Order Malvacer). He states [Proc. U.S. Nat. Mus. xxxiv.

pp. 174, 175 (1908)] that the specimens from Guanajuato, Mexico, are blacker, and

have a longer first joint to the funiculus, than in his Texan insect. Apparently he was

not aware that A. tevanus had been previously recorded from Guanajuato in this work.

59 (a). Anthonomus filirostris, sp. n.

Closely related to A. tenuirostris (anted, p. 187), but differing as follows :—Body rufo-piceous above, the

prothorax, scutellar region, under surface, and rostrum darker; the vestiture not so coarse, the white

scales condensed into a dense oblong spot behind the scutellum, which is also albo-squamose ; the rostrum

more slender—in the ¢ nearly straight, about half the length of the body, feebly striate-punctate, in

the 2 straight, nearly as long as the elytra (as seen in profile), and smooth, the antenne in the ¢

inserted far beyond, and in the @ at, the middle; the legs not so stout, maculate.

Length 21-23, breadth 1;1;-1} millim. (3 @.)

Hab. Mexico (ex coll. Solar?).

One pair, labelled “« Mexico, Rtt.,” differing as above stated from the Guatemalan

A. tenuirostris, the only Central-American species with which the present insect can be

compared. The post-scutellar oblong white spot is also visible in some of the examples

of A. tenuirostris (though it was not noted in the description or shown in the figure) ;

but the more slender rostrum and finer vestiture are sufficiently characteristic of A. fili-

_rostris *. A. alboscutellatus (anted, p. 172) has a similar scutellar patch, but it does

not otherwise resemble A. tenuirostris + or A. filirostris.

63 (a). Anthonomus triangularis, sp. n.

Relatively narrower, larger, and a little more elongate than A. triangulifer (p. 188); the rostrum stouter in

the g; the elytra distinctly longer, less depressed below the base, and with an elongate-triangular

scutellar patch, and sometimes a small spot on the disc beyond the middle, black ; the posterior tibix of

the ¢ not dilated on the inner side near the base, and formed as in the 2.

Length 23-3, breadth 14-12 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

* Mr. Wickham has sent me a male of yet another allied form (? undescribed) from Brownsville, Texas ;

ut this insect has the fifth ventral segment deeply sulcate down the middle.

+ Corrigendum: For length “ 2-32” read “ 3-33.”

188 APPENDIX.

Two males and five females. This species was confused by me with A. triangulifer,

but the subsequent discovery of the male proves it to be distinct. The unarmed

posterior tibize in this sex also distinguish 4. triangularis from A. isthmicus.

66 (a). Anthonomus managuensis, sp. n.

Oblong-ovate, feebly shining, ferruginous, the eyes black, the legs testaceous; rather sparsely, uniformly

clothed with small, narrow, hair-like, brownish-white scales, the vestiture denser and whiter beneath. -

Rostrum moderately slender, feebly curved, much longer than the head and prothorax, opaque, almost

bare, closely punctulate, finely carinate along the median line, the antenne inserted just beyond the

middle. Prothorax strongly transverse, rounded at the sides anteriorly, feebly constricted in front;

densely, finely punctate. Elytra much wider than the prothorax, parallel at the base; rather coarsely

punctate-striate, the interstices almost flat and closely punctulate. Anterior and intermediate femora

with a rather long, narrow, acute tooth, the posterior pair with a smaller tooth; anterior and inter-

mediate tibiz strongly sinuate within ; tarsal claws with a long tooth.

Length 24, breadth 14 millim. (9?)

Hab. Nicaragua, Santa Ana, Lago Managua (Solari).

Three specimens, one of which has been presented to us by Signor Solari. This

species is perhaps nearest related to A. fulvipes, differing from it in the ferruginous

body, the sparse whitish vestiture, the subglabrous, smoother, and more slender rostrum,

and the more acutely toothed femora.

66 (s). Anthonomus uniseriatus, sp. n.

Subovate, narrow, shining, ferruginous or testaceous, the eyes, antennal club, and sometimes the apical half of

the rostrum, infuscate or black; sparsely clothed with rather long, yellowish, decumbent hairs, those on

the elytra uniseriately arranged along each interstice. Rostrum feebly curved, considerably longer than

the head and prothorax, moderately slender, distinctly widened outwards, closely punctate and finely

carinate, the antenne inserted just beyond the middle. Prothorax transverse, feebly constricted in front,

densely punctate. LElytra wider than the prothorax, coarsely punctate-striate, the interstices convex and

feebly uniseriate-punctate. Anterior and intermediate femora each with a small tooth; anterior tibic

sinuate within ; tarsal claws with a long tooth.

Length 13-2, breadth 4—2 millim.

Hab. Guatemata, San Joaquin in Vera Paz (Champion).

Four specimens, probably including both sexes. A. small testaceous or ferruginous

form, with a rather stout, apically widened rostrum, and a single row of long decum-

bent hairs down each elytral interstice.

71 (a). Anthonomus solarii, sp.n. (Tab. IX. figg. 9, 9a, 9.)

Elliptic, ferruginous, the eyes, antennal club, and under surface (the ventral segments 2-5 excepted) blackish

or infuscate, the legs testaceous ; densely clothed with small, oblong, pale brownish-ochreous and whitish

scales, the former condensed into two broad indeterminate vitte on the disc of the prothorax and some

faint markings on the elytra (a large subtriangular patch being sometimes visible beyond the middle), the

scales on the under surface white, those on the ventral segments narrower and hair-like. Rostrum

rather stout, feebly curved, slightly longer than the head and prothorax, densely punctate and subcarinate,

the antennze inserted at a little beyond the middle. Prothorax strongly transverse, rapidly, arcuately

narrowing from near the base ; densely, finely punctate. Elytra a little wider than the prothorax, finely

RHYNCHOPHORA : CURCULIONIN &. 189

punctate-striate, the interstices flat and densely punctulate. Anterior femora with an acute tooth, the

other femora obsoletely dentate; anterior tibie strongly sinuate withi i

; tarsal cl h .

Length 2-22, breadth 1-14 millim. Cg g.) ad ns farsal claws with @ Tong oi

Hab. Nicaragua, Managua (Solar?).

: Broader and more densely squamose than the Mexican A. squamans, the scales of a

pale brownish-ochreous colour intermixed with others of a whitish tint. Also very like

the Mexican A. fulvipes, but differing from it in the less elongate, broader scales, the

bivittate prothorax, the more finely punctate-striate elytra, &c. At first sight, A. solarie

might be mistaken for a Silinia or Smicronya. About a dozen examples of it were

captured.

72(a). Anthonomus dealbatus, sp. n.

Elliptic, piceous, the antenne (the club excepted), and the legs in great part, ferruginous; densely clothed

with small, oblong scales, which are mostly brownish-white in colour (and not clustered into definite

markings) on the upper surface, those on the under surface white, becoming hair-like on the ventral

segments. Rostrum much longer than the head and prothorax, feebly curved, moderately stout, densely

punctate, the antenne inserted at about the middle. Prothorax strongly transverse, gradually, arcuately

narrowing from the base; densely, finely punctate. Elytra finely punctate-striate, the interstices flat

and densely punctulate. Anterior femora with a small, the intermediate pair with a still smaller, tooth,

the posterior pair unarmed ; anterior tibie strongly sinuate within ; tarsal claws with a long tooth.

Length 23, breadth 17; millim. (2 2)

Hab. Guatemata, San Gerénimo (Champion).

One specimen, not in a very good state of preservation. Very near the Nicaraguan

A. solarii, but with a relatively longer rostrum, the rostrum and ventral surface piceous,

the scales on the upper surface almost uniform in colour, and the posterior femora

unarmed. In both species the sculpture of the upper surface is almost entirely hidden

by the vestiture, and the funiculus is 7-jointed.

PSEUDANTHONOMUS (p. 194).

9(4). Pseudanthonomus nanus.

Anthonomus nanus, Lec. Proc, Am. Phil. Soc. xv. p..207° ; Dietz, Trans. Am. Ent. Soc. xviil.

p. 244 (nec Gyll.)*.

Hab. Norra America, Texas, Arizona?, New Mexico 2, Colorado, Utah.—N. Muxico,

Juarez (ex coll. Sharp).

A very small, narrow, albo-squamose form with a 6-jointed funiculus, near P. cretaceus.

The insect is deceptively like a Smicronyz.

11. Pseudanthonomus crinitus, sp. n. (Tab. IX. figg. 10, 10a, 3.)

Ovate, shining, ferruginous, the prothorax and elytra slightly darker in one specimen ; thickly clothed with

small, adpressed, brownish-white, hair-like scales intermixed with very long, pallid, erect setze, the legs

190 APPENDIX.

and rostrum also with rather long erect hairs intermixed. Rostrum about as long as the prothorax,

feebly curved, closely punctate to near the tip, the antenne inserted far beyond the middle, the funiculus

6-jointed. Prothorax transverse, densely punctate. Elytra much wider than the prothorax, com-

paratively short, punctate-striate, the interstices punctulate. Legs short; femora unarmed; tarsal claws

with a long tooth.

Length 13-14, breadth 8-1 millim. (d.)

Hab. Satvavor, San Salvador (Solari).

Two specimens, apparently males, one of them presented to us by Signor Solari.

They were captured in May 1898. The only allied Central-American form known to

me is P. hispidus (anted, p. 198), which has a much longer, arcuate, subglabrous

rostrum, more parallel, subgibbous elytra, and longer legs, the vestiture sparser and

darker, and the erect sete much shorter. ‘The sculpture is almost hidden by the close

vestiture in the present species.

MACRORHOPTUS (p. 200).

1. Macrorhoptus spheralciz.

Macrorhoptus estriatus, antead, iv. 4, p. 200 (nec Leconte) *.

Macrorhoptus spheralcie, Pierce, Proc. U.S. Nat. Mus. xxxiv. p. 173 (1908) °*.

Hab. Norta America, Devil’s River, Texas 2,—MeExico, Juarez (Cockerell'), San

Pedro Ooahuila (Dr. Palmer).

M. estriatus was wrongly identified by me, and the Juarez specimen referred to it,

and others now before me from Coahuila, doubtless belong to /. spheralcie, Pierce.

They are densely clothed above with elongate pallid scales intermixed with scattered

small decumbent curled sete. The Texan examples were bred from the fruit-capsules

of Spheralcea angustifolia *.

TYCHIINA.

THYSANOCNEMIS (p. 203).

4(a). Thysanocnemis exclamationis, sp.n. (Tab. VIII. figg. 26, 26a, 2.)

Broad-ovate, piceous, the under surface in part black, the rostrum, antenne, and legs (the middle of the

femora excepted) ferruginous ; thickly clothed with very small reddish-brown hair-like scales, the elytra

with a faint sinuous, transverse, yellowish, postmedian fascia, a few widely scattered, intermixed, semi-

erect, setiform, white scales, and a broad velvety-black sutural stripe (extending from about the basal

fourth to near the apex), the latter interrupted at the middle of its length by a tuft of coarser semierect

narrow ochreous scales; the under surface sparsely set with decumbent whitish hairs. Head densely,

finely punctate ; rostrum considerably longer than the head and prothorax, curved, moderately stout,

shining, very sparsely punctate, smooth along the middle, carinate at the base. Prothorax strongly

transverse, rounded at the sides anteriorly, much narrowed in front; closely punctate, subcarinate down

the middle, the interspaces densely minutely punctate. Elytra broad, subtriangular, transversely

depressed at the base; with rows of rather coarse punctures placed in almost obsolete strie (the first,

* This plant is widely distributed in Mexico (cf. Biol. Centr.-Am., Botany, i. p. 113).

RHYNCHOPHORA: CURCULIONIN &. 191

second, and third becoming sinuous towards the middle), the interstices densely, rugulosely punctate.

Femora each with a small tooth.

Length 4, breadth 2 millim. ( 9.)

Hab. Panama, Bugaba (Champion).

One specimen, in very fresh condition. Larger and broader than the Guatemalan

T. suturalis, the rostrum very much longer, the inner elytral striz pushed out of line

by the largely developed, velvety-black, !-shaped, sutural streak.

7 (a). Thysanocnemis minor, sp. n. (Tab. IX. figg. 11, lla, 2.)

Subovate, feebly shining, ferruginous, the legs and antenne testaceous ; somewhat thickly clothed with fine

hair-like whitish scales, the elytra with a transverse spot near the base and two undulate, transverse

fasciea—one, broad, a little beyond the middle, the other, narrow, near the apex—brown, the interstices

each with a line of coarser decumbent set, the scutellum with white scales; the vestiture of the under

surface coarser, white, dense along the meso- and metasternal side-pieces. Rostrum (¢ ) feebly curved,

rather stout, as long as the prothorax, finely punctate, and carinate, ( Q ) more curved, slender, nearly as

long as the head and prothorax, shining, and very sparsely punctate; the antenn inserted near the apex

in the ¢ and at the middle in the . Prothorax transverse, arcuately narrowed in front, densely

punctate, with indications of a short, smooth, median line. Elytra much wider than the prothorax,

coarsely punctate-striate, the interstices convex and closely punctulate. Femora without trace of tooth.

Posterior tibise without visible apical claw.

Length 13-2, breadth 5% millim.

Hab. Nicaracua, Managua (Solari).

Numerous examples, some of which have been presented to us by Signor Solari.

This insect is so like an Anthonomid that it might readily be passed over as such; the

more approximate eyes and the produced posterior angles of the second ventral

segment, however, distinguish it at a glance. TJ. minor is perhaps nearest related to

T. pusillus, which wants the dark undulate elytral fascie. The rostrum is more

slender, and the punctures of the elytral striz are smaller, than in T. brevis *.

SIBINIA (p. 208).

Four additional species of this genus, from Nicaragua, have been sent us by Signor

A. Solari. A second specimen of S. tessellata, described from a single Mexican

example, has since been found in our collection, mixed with the Barids: it was taken

by myself at Tamahu, Guatemala. Another specimen of S. rotundata, from Bugaba,

was also overlooked. All these insects have the funiculus 6-jointed, and the elytra

separately rounded at the apex, leaving the pygidium more or less exposed.

1(a). Sibinia pulcherrima, sp. n. (Tab. IX. figg. 12, 12a.)

Subelliptic, nigro-piceous, the antenne, tip of the rostrum, and apices of the tarsi ferruginous ; variegated

Canad. Entom. xlii. p. 129 (April, 1910), from Nebraska, requires a new name. His

genus Hamaba (loc. cit. p. 131), type H. bahamensis, from the Bahamas, is very like these small Thysanocnenus,

but differs from them in having a 6-jointed ‘tuniculus. We are indebted to him for a co-type of it.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. 2CC

* T. brevis, Casey,

192 APPENDIX.

with narrow, elongate, overlapping white, ochreous, and dark brown scales (those on the elytra arranged

in about two rows along each interstice and one along each stria), the prothorax with a dense cluster of

larger, imbricate white scales in the middle behind (covering the scutellum), and the elytra with two

oblong patches of similar scales along the suture—one near the base, indistinct, the other, larger, broader,

and sharply defined, beyond the middle ; the vestiture of the under surface and legs white and ochreous,

the scales on the meso- and metasternal side-pieces larger and pure white. Rostrum arcuate, rather

stout, closely punctate, the antenne inserted far beyond the middle. Prothorax transverse, deeply

sinuate at the base, the sides subparallel behind; densely punctate. Elytra much wider than the

prothorax, feebly rounded at the sides, somewhat flattened on the disc anteriorly, strongly and separately

rounded at the apex; finely punctate-striate, the interstices densely, rugulosely punctate.

Length 2,1,-24, breadth 1-1/5 millim.

Hab. Nicaraeva, Corinto (Solart).

Two specimens, both in such beautiful condition that I have not ventured tv

remount them for the purpose of examining the under surface. S. pulcherrima is

shorter and less convex than the Mexican S. rubescens, the scales are much smaller

and differently coloured, &c. The upper surface is apparently mottled with black,

owing to the sparser and darker vestiture of portions of the surface.

6 (a). Sibinia solariella, sp. n.

Short ovate, black, the base of the antenne, and the tarsi in part, ferruginous; somewhat thickly and

uniformly clothed with narrow, hair-like, whitish-cinereous scales, which are condensed into a faint

streak along the basal portion of the elytral suture, the elytral interstices each with a line of slightly

raised setiform scales down the middle; the scales on the under surface larger and wholly white.

Rostrum arcuate, a little longer than the prothorax, closely punctate. Prothorax transverse, arcuately

narrowing from near the base, densely punctate. Elytra wider than the prothorax, separately rounded

at the apex; punctate-striate, the interstices wider than the striz, closely punctate.

Length 14, breadth 4-3 millim.

Hab. Nicaracua, Managua (Solar?).

Five specimens. Separable from the allied S. americana, Ch., and S. melina,

Faust, by the conspicuous line of raised setiform scales down each elytral interstice.

6 (s). Sibinia albidula, sp. n.

Ovate, narrow, nigro-piceous, the rostrum, antenne, and legs ferruginous; rather sparsely clothed with fine,

hair-like, white scales, the elytral interstices each with aline of conspicuous white sete. Rostrum about

as long as the prothorax, tapering outwards, bare and shining at the tip. Prothorax transverse,

narrowing from the base, densely, finely punctate. Elytra wider than the prothorax, separately rounded

at the apex; punctate-striate, the interstices about as wide as the strie, densely punctate.

Length 12, breadth ? millim.

Hab. Nicaracva, Corinto (Solari).

One specimen. Smaller than S. solariella, the vestiture finer, sparser, and wholly

white, the prothorax somewhat conical, the legs ferruginous, &c.

7 (a). Sibinia dissipata, sp. n. (Tab. IX. figg. 13, 13 a.)

Short ovate, rather narrow, testaceous, the eyes black, the elytra usually with a common, large, triangular,

infuscate, scutellar patch; somewhat thickly clothed with narrow, hair-like, yellowish-white scales,

RHYNCHOPHORA: CURCULIONIN 2. 193

which become white along the basal margin of the prothorax, the elytra with a more or less interrupted

sutural stripe of larger imbricate white scales and a line of curled, decumbent, yellowish setze down each

interstice ; the scales on the under surface rather large and wholly white. Rostrum arcuate, nearly as

long as the head and prothorax, closely punctate. Prothorax transverse, densely, finely punctate.

Elytra considerably wider than the prothorax, separately rounded at the apex ; punctate-striate, the

interstices densely, rugulosely punctate.

Length 12-14, breadth 2-4 millim.

Hab. Nicaraeva, Corinto (Solari).

Numerous specimens, three of which have been presented to us by their captor.

Near S. aspersa and S. americana, but almost wholly testaceous (a common triangular

scutellar patch excepted), the vestiture not so dense (except along the elytral suture),

the elytra with a row of rather stout, curled, yellowish, setiform scales along each

interstice and a dense interrupted white sutural stripe.

Sibinia aspersa (p. 211).

Signor Solari has also sent us a specimen of S. aspersa from Corinto. The elytra

in this insect, when fresh, have a line of inconspicuous raised setiform scales down

each interstice, which are not easily seen till the insect is viewed in profile.

MICROTYCHIUS (to follow the genus Sibinia, p. 212).

Tychius, subgen. Microtychius, Casey, Canad. Entom. xlii. p. 186 (April 1910).

Colonel Casey has recently described numerous N.-American, and two Mexican,

representatives of this genus, the type of which is Zychius setosus, Lec., all of them

having a 6-jointed funiculus and being very different in facies from the typical

European TZychii. We are indebted to him, or to Mr. Wickham, for specimens of

various N.-American forms, such as M/. setosus (Lec.), and M. mica, sulcatulus, simplex,

variegatus, inermis, and dulcis, Casey; and Sibinia rubescens, Ch. (antea, p. 209),

will probably have to be included in Microtychius. We also have an example of

M. variegatus labelled “ N. Sonora.”

1. Microtychius grypus.

Tychius (Microtychius) grypus, Casey, Canad. Entom. xlii. p. 189°.

Hab. Mexico, Rio Balsas in Guerrero (Wickham ').

Unknown to me.

2. Microtychius errans.

Tychius (Microtychius) errans, Casey, Canad. Entom. xlii. pp. 141, 142°.

Hab. Mexico, Saltillo and Monterey (Wickham ').

A cotype of this species, from Monterey, has been kindly presented to us by its

describer. 200.2

194 APPENDIX.

OTIDOCEPHALINA.

OOPTERINUS (p. 267).

Oopterinus sneopiceus (p. 270).

We are indebted to Signor Solari for a specimen of this species from the “ Sierra de

Durango” (Hége). It was described from a single example from Mexico belonging to

the Berlin Museum.

LASMOSACCINA.

LAEMOSACCUS (p. 281).

4 (a). Lemosaccus sulcifrons, sp.n. (Tab. IX. figg. 14, 14a, ¢.)

g. Oblong, subopaque, black, the elytra with a large triangular scutellar patch, extending narrowly down-

wards along the suture, a spot on the shoulder, an oblong patch on the third interstice just beyond the

middle, a similar patch on the fifth near the apex, and the apical margin, ferruginous, the antenne,

knees, tibiee, and tarsi also more or less ferruginous. Head densely punctate, sulcate between the eyes,

the latter unemarginate and somewhat widely separated ; rostrum short and very stout, densely punctate,

the frontal furrow extending down the basal half. Prothorax transversely convex, strongly rounded at

the sides, about as wide as the elytra; the surface sharply carinate down the middle, the dise with

closely placed, fine, raised, radiating lines, the base, sides, and apex confluently punctate. Elytra

moderately long, subparallel, with narrow, finely punctured stria, the interstices transversely wrinkled,

finely granulate, and angularly raised externally. Pygidium coarsely punctured and granulate. Anterior

femora with a rather long, curved, blunt tooth, the other femora obsoletely dentate.

Length 31, breadth 13 millim,

Hab. Mexico (Truqui, in coll. Fry).

One male. Near LZ. hamatus, but less shining and not so coarsely sculptured, the

prothorax with closely placed, raised, radiating, anastomosing lines on the disc, the

eyes more widely separated, the sulcus between them extending down the basal half

of the rostrum, the anterior femoral tooth narrower and less truncate at the tip.

CHOLINA.

CHOLUS (pp. 291, 724).

1 (4). Cholus longipennis, sp.n. (Tab. VIII. figg. 28, 28 a, ¢.)

g$. Elongate-oval, rather narrow, black; the depressed portions of the surface (a broad space along the flanks

of the prothorax, and the median portion of the metasternum and abdomen, excepted) somewhat thickly

clothed with small, narrow, oval, ochreous seales, those on the prothorax mainly condensed into a broad

curved submarginal vitta on each side and an anteriorly abbreviated median stripe, the scales on the

elytra clustered into a longitudinal band between each of the raised granulate interstices, the scutellum

bare, the legs with scattered whitish hairs. Head rugosely punctate between the eyes; rostrum about

as long as the head and prothorax, moderately stout, feebly curved, the basal portion flattened, rugosely

punctate, and finely carinate, the apical portion rather sparsely punctured. Prothorax a little broader

than long, arcuately narrowing from the base, the latter deeply bisinuate; closely punctate, the disc

transversely rugose and subgranulate, slightly depressed down the middle and along the spaces covered

by the submarginal vitte. lytra very little wider than, and fully two and a half times the length of,

the prothorax ; seriate-punctate, the interstices raised and each with a row of closely placed smooth

granules, Beneath sparsely punctate and pilose down the middle, squamose along the sides, the

RHYNCHOPHORA : CURCULIONINA, 195

metasternum and first two'ventral segments broadly sulcate. Anterior cox moderately separated. Tibie

with a sharp claw at the inner and outer apical angles, that at the inner angle of the anterior pair stout

and obtuse.

Length 184, breadth 6 millim.

Hab. Panama, Chiriqui (coll. Fry, in Mus. Brit.).

One example. Closely related to the Nicaraguan C. tuberculifer, but with still

more elongate elytra, the interstices of which are raised and conspicuously granulate,

and the interspaces between them uniformly ochreo-squamose, and the prosternum

without tubercle between the anterior coxe. The “key” given on p. 291 requires

modification to include C. longipennis.

19 (a). Cholus albovittatus, sp. n. (Tab. VIIL. figg. 29, 294, ¢.)

g. Subcuneiform, rather convex, black; the prothorax with three, and the elytra each with two, vittz on

the dise (the central one on the prothorax narrow, the others broad), and both with a continuous stripe

along the flanks beneath, densely clothed with broad, imbricate, brownish-white scales, the rest of the

depressed portion of the upper surface set with very small brownish-ochreous scales, the head with

a curved whitish stripe on each side between the eyes, the under surface with dense patches of broad

brownish-white scales, the scales on the abdomen intermixed with pallid hairs, like those on the legs.

Head densely punctate; rostrum moderately stout, curved, slightly longer than the head and prothorax,

widened at the tip, the basal portion densely punctate and finely carinate, the apical portion more

sparsely punctured. Prothorax transverse, deeply bisinuate at the base, rounded at the sides, rapidly

narrowing from about the basal third; strongly granulate, the interspaces densely, finely punctate, the

spaces covered by the vitte depressed. Scutellum large, rugosely punctate. Elytra moderately long, a

little wider than the prothorax, obliquely narrowing from the rounded humeri; seriate-punctate, the

alternate interstices raised and each with a row of closely-placed, smooth granules, the first (sutural)

and seventh also with a few smaller scattered granules. Beneath coarsely punctate, granulate along the

sides, Ventral segments 1 and 2 broadly suleate down the middle. Tibiz with a sharp claw at the

inner and outer apical angles.

Length 11, breadth 44 millim.

Hab. Costa Rica (coll. Fry, in Mus. Brit.).

One specimen. Narrower and more convex than C. circumnotatus, the prothorax

with three, and the elytra each with two, sharply-defined whitish vitte on the disc, and

both with a whitish continuous stripe along the flanks beneath, the intervening spaces

on the upper surface strongly granulate. The sculpture of the vittate portions of the

surface is completely hidden by the dense imbricate scales.

Cholus morio (p. 300).

M. Desbrochers des Loges [Ann. Soc. Ent. Belg. 1. p. 856 (1906) ] refers this species

to Homalonotus (Schénh.), Lacord., but on what grounds I know not. Some time

ago he communicated a specimen of it from Venezuela for comparison with the type,

supposed to be of Mexican origin, but the latter is perhaps wrongly labelled as

to locality ?

196 APPENDIX.

25 (a). Cholus tessellatus, sp. n. (Tab. VIII. figg. 30, 304, ¢.)

Oblong-rhomboidal, convex, shining, castaneous, the rostrum, antenne, and legs sometimes ferruginous (the

antennal club and the knees excepted); the depressed portions of the upper surface somewhat thickly

clothed with small, pale ochreous, oval scales (thus appearing closely, transversely tessellate), the sides of

the body beneath and the prosternum densely clothed with similarly-coloured imbricate scales, the rest

of the under surface and the legs with scattered hair-like whitish scales. Head rugosely punctate

in front, foveate between the eyes ; rostrum arcuate, rather slender, longer than the head and prothorax,

in the ¢ subcarinate at the base and somewhat closely punctate thence to about the middle, in the

rather coarsely granulate, the squamose interspaces finely punctate. Scutellum oblong, closely punctate.

Elytra attenuate-cordate, the humeri strongly rounded ; seriate-punctate, the interstices rather broad,

here and there confluent, and each with a series of flattened, polished granules, the seriate punctures

also separated one from another by a smaller smooth granule. Beneath densely punctate along the

sides, sparsely so down the middle; ventral segments 1 and 2 hollowed down the middle in the ¢.

Tibise with a sharp claw at the inner and outer apical angles.

Length 104-13, breadth 44-54 millim. (d 2.)

Hab. Panama, Chiriqui (coll. Fry, in Mus. Brit.).

Three specimens. Near C. lecideosus and C. multiguttatus, but with the sides of the

body beneath densely clothed with imbricate pale ochreous scales, the elytra more

closely granulate and tessellate with smaller transversely confluent patches of ochreous

scales. The prothorax is short and strongly rounded at the sides, the last-mentioned

character separating C. tessellatus from C. pallidiventris, C. albiventris, &c.

ERETHISTES (pp. 310, 726).

1 (a). Erethistes ochriventris. (Tab. VIII. figg. 33, 33 a, 2.)

Erethistes ochriventris, Pasc. Journ. Linn. Soc., Zool. xi. p. 472°.

Q. Moderately elongate, cuneiform, metallic brassy-green, the antenne and rostrum black, the legs ceruleous ;

the head, prothorax, and base of the rostrum sparsely set with small, narrow, whitish scales, the

foveiform depressions of the elytra each with a dense transverse cluster of similar scales; the under

surface densely clothed with much larger and broader pale ochreous scales, those on the last two ventral

segments narrow and hair-like; the legs with scattered whitish hairs. Head closely punctate, feebly

foveate between the eyes; rostrum moderately stout, about as long as the head and prothorax, almost

straight, the basal portion closely punctate and finely carinate, the apical portion flattened, polished, and

very sparsely, obsoletely punctate, the antennz inserted at the middle. Prothorax broader than long,

subconical, rounded at the sides posteriorly, and feebly constricted in front; transversely rugose.

Scutellum rather large, finely punctured. Elytra cuneiform, less than twice the length of the prothorax ;

closely seriato-foveolate, the fovese subquadrate and here and there transversely confluent, the narrow

raised interspaces almost smooth, except along the suture. Beneath densely punctate. Posterior femora

extending far beyond the apex of the elytra. Posterior tibia with a smooth claw at the outer apical

angle.

Length 11, breadth 43 millim.

Hab. Costa Rica (coll. Fry, in Mus. Brit.)—Cotomsta, Santa Marta! *.

One specimen. A remarkably distinct form, recognizable at a glance by its regularly

cuneiform shape (the sides of the prothorax forming a continuous outline with those

* This locality is in Colombia, not Venezuela as stated.

RHYNCHOPHORA : CURCULIONIN &. 197

of the elytra), the metallic brassy-green upper surface, the transversely rugose

prothorax, the fasciculate, closely seriato-foveolate elytra, and the dense pale ochreous

vestiture of the under surface. The type is somewhat abraded above, and has the

elytral interstices disconnected and the subquadrate fovee arranged in regular series.

2 (s). Hrethistes fasciculosus, sp. n. (Tab. VIII. fig. 31, 3.)

dé. Very like H. triangularis (antea, pp. 311, 727), but with the prothorax more closely and finely

granulate ; the irregular, transverse, foveiform, confluent depressions on the elytra much more closely

placed, and the dense clusters of scales in the depressions smaller and more numerous ; the rostrum less

curved ; the posterior femora scarcely reaching beyond the apex of the elytra; the scales ochreous,

those on the under surface large and oblong, and intermixed with scattered whitish hairs.

Length 143, breadth 6} millim.

Hab. Panama, Chiriqui (coll. Fry, in Mus. Brit.).

One specimen. ‘This is the Panama representative of the Costa Rican L. triangularis

and it requires a distinctive name. The upper surface is sculptured and clothed as in

E.. cyanipes. ‘The narrower, conical prothorax, subtriangular elytra, prominent humeri,

shorter legs, &c., readily separate EH. fasciculosus from the last-mentioned insect.

2 (c). Erethistes subviolaceus, sp.n. (Tab. VIII. fig. 32, 2.)

@. Elongate-rhomboidal, rather narrow, convex; black with a subviolaceous or sneous lustre, the antenne

ferruginous at the base, the larger depressions on the elytra each with a rounded or oblong cluster of very

small, narrow, whitish scales; the legs and under surface with scattered, minute, hair-like, white scales.

Head closely punctate ; rostrum curved, rather slender, widened towards the apex, more than half the

length of the body, very sparsely, finely punctate. Prothorax transverse, conical, transversely rugose

and subgranulate. Elytra oblong-triangular, the rounded humeri almost in line with the sides of

the prothorax; coarsely, interruptedly seriato-punctate, the interstices transversely wrinkled and here

and there confluent, the outer ones convex. Beneath closely, finely punctate. Posterior femora not

extending beyond the apex of the elytra. Tibise without definite uncus at the apex.

Length 114, breadth 5 millim.

Hab. Mexico (Truqui, in coll. Fry).

One specimen. Near E. triangularis and E. fasciculosus, but with the humeri

of the elytra much less prominent and almost in a line with the oblique sides of the

prothorax, the scattered fascicles of small white scales on the elytra oblong or rounded,

the posterior femora shorter than in the typical members of the genus, the rostrum

very elongate, the tibise almost unarmed at the tip.

2 (v). Erethistes truncatus, sp.n. (Tab. IX. figg. 15, 15a, 3.)

3. Moderately elongate, cuneiform, piceous, the antennz obscure ferruginous; the head, prothorax, and

; elytra set with narrow yellowish-white scales, the scales on the prothorax and elytra clustered into

transverse or oblique patches in the numerous depressed portions of the surface ; the under surface

densely clothed with coarser pale ochreous scales, the legs sparsely set with whitish hairs. Head closely

punctate, feebly foveate between the eyes; rostrum curved, rather slender, nearly as long as the elytra,

sparsely punctate, the apical half almost smooth, the antenne inserted at the middle. Prothorax

198 APPENDIX.

transverse, conical, the sides parallel at the extreme base; transversely rugose. Elytra conical, barely

twice the length of, and at the base of the same width as, the prothorax, rather broadly subtruncate at

the apex; punctate-striate, the interstices transversely wrinkled, granulate, and here and there confluent.

Beneath densely punctate; first ventral segment depressed down the middle. Posterior femora

extending beyond the apex of the elytra. Tibiee: without definite uncus at the apex.

Length 91, breadth 4j millim.

Hab. Honvunas (ex coll. Solari).

One specimen. Of the same general shape as E. cyanipes, but with much shorter,

subtruncate elytra (which are scarcely longer than the rostrum); the under surface

more densely squamose; the legs more slender and piceous in colour; the tibiz

without definite claw at either the inner or outer apical angle. From E£. triangularis,

E. fasciculosus, &c., the present species may be known by the non-prominent

humeri, &c.

DIONYNCHUS (p. 313).

Dionynchus parallelogrammus (p. 313).

To the locality given, add :—Cosrta Rica, Carrillo (Biolley).

I have now seen several specimens of this insect from Chiriqui and one from Costa

Rica. M. Desbrochers des Loges [ Ann. Soc. Eut. Belg. 1. p. 371 (1906)] has recently

called attention to the variation in the width of the elytral interstices in this insect.

CRYPTORRHYNCHINA.

ISOTRACHELUS.

Isotrachelus, Faust, Stett. ent. Zeit. 1896, p. 94.

Microcleogunus, Champ. antea, iv. 4, p. 458 (1905),

1. Isotrachelus tibialis.

Microcleogonus tibialis, Champ. antea, iv. 4, p. 459, t. 22. figg. 17, 17 a-c; iv. 5, p. 117, nota.

To the localities given, add :— Nicaragua, Managua (Solari).

RHYSSOMATUS (p. 326) *,

18 (a). Rhyssomatus sexcostatus, sp. n.

Ovate, convex, shining, piceous, the head, rostrum, anterior margin of the prothorax, and elytra more or less

rufescent; sparsely set with minute, narrow, brownish-cinereous scales, which are here and there

clustered into small fascicles on the elytra. Head closely punctate, the eyes somewhat narrowly separated ;

rostrum feebly curved, moderately stout, slightly depressed at the base, about as long as the head and

prothorax, closely striato-punctate and also carinate in the ¢, longer and very sparsely, finely punctate

from near the basein the 9. Prothorax strongly transverse, gradually and obliquely narrowing from

the base, abruptly constricted towards the apex; closely, rather coarsely punctate, except along a smooth

* St. Vincent, W.I., may be added as a locality for R. nigerrimus, Fihr. (p. 337), and Chalcodermus

angularis, Champ. (p. 319).

RHYNCHOPHORA : CURCULIONIN A. 199

abbreviated median line, the punctures here and there transversely confluent on the disc and becoming

much coarser towards the sides. Elytra coarsely punctate-striate, the punctures elongate and deeply

impressed, the interstices densely, rugosely punctate, 3, 5, and 6 from about the basal fourth, and 7-9

for their entire length, more or less carinate, the ridges on 3 and 5 prominent. Beneath coarsely punctate ;

fifth ventral segment shallowly foveate in both sexes, Anterior coxe narrowly separated. Legs densely,

rugosely punctate; intermediate and posterior tibiee angulate on their outer edge towards the apex.

Length 43-53, breadth 23-27 millim. (¢ 9.)

Hab. Nicaraavua, Managua and Corinto (Solari).

Three specimens. Nearly related to R. rufus, Fahr., but much more rugose,

less shining, and sparsely squamose, the prothorax less rapidly narrowed forwards, the

ridges on the elytra not so prominent, &c. £. semicostatus, Boh., from Colombia,

must be an allied smoother form.

GERSTAECKERIA (p. 470) *.

6. Gerstaeckeria tolucana, sp. n. (Tab. IX. figg. 16, 16 a.)

Short-ovate, broad, very convex, black, the antenne (the club excepted), and the tibie in part, ferruginous ;

variegated above with a dense clothing of broad, pale brown and black scales, the latter condensed into

two spots on the head, various spots on the prothorax, and numerous scattered markings on the elytra—

an interrupted, transverse, arcuate fascia on the disc at about the commencement of the apical declivity

and several streaks or transverse spots on the alternate interstices 2, 4, and 6 (the one at the base of 2,

and those towards the apex of 2 and 4, oblong); the scales on the legs and under surface pale brown,

the legs faintly annulate with whitish. Head and rostrum densely punctate, the latter broad, widened

outwards, and about as long as the prothorax. Prothorax short, obliquely narrowed from the middle,

constricted in front, the sides somewhat rounded posteriorly ; densely, finely punctate, broadly and shal-

lowly trisulcate towards the base (the intervening spaces appearing nodose in profile). Elytra gibbous,

rounded at the sides and produced at the apex, at the middle nearly one-half wider than the prothorax ;

with rows of foveiform punctures placed along shallow strive, the interstices broad and convex, very

densely punctate. Beneath densely punctate ; ventral segment 2 shorter than 3 and 4 united, the latter

together about as long as 5, the sutures straight. Legs short; femora unarmed.

Length 5, breadth 22 millim.

Hab. Mexico, Toluca (Wickham).

A single specimen, kindly presented to us by its captor. Recognizable by the

very short prothorax and the rotundate, gibbous, nigro-variegate elytra (the black

streaks giving a nodulose appearance to the surface when the insect is viewed in profile).

The second ventral segment is shorter than the next two united, and the insect is

therefore better placed in Gerstaeckeria than in Acalles.

7. Gerstaeckeria curvilineata, sp.n. (Tab. IX. figs. 17, 17 a.)

Closely resembling G. tolucana, but abundantly variegate above with larger whitish scales, the blackish-

brown scales on the elytra clustered into the following sharply-defined markings—four oblong streaks

at the base (the outer one on each elytron shorter and triangular), an oblique, strongly arcuate fascia

beyond the middle (extending from the first to the sixth stria, and followed by a curved, slightly broader,

whitish band), two elongate streaks on the apical declivity, and a small transverse spot on the outer margin

behind the whitish band; the prothorax with a few intermixed blackish scales towards the apex, the

* A second specimen of G. lacti (p. 471) has recently been found in the British Museum, from the same

locality (Campeche) as the worn type.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. 2 DD

200 APPENDIX.

sulci very shallow ; the head with pale brown and whitish scales only, the latter condensed into a trans-

verse band between the eyes ; the elytral interstices broad, convex, and uneven.

Length 4,%,, breadth 23 millim.

Hab. Mexico (Truqui, in coll. Fry).

One specimen. Very like @. tolucana, but with the prothorax more convex (the

sulci almost obsolete), the vestiture of the upper surface partly whitish, and the

blackish-brown streaks on the elytra differently placed. ‘The coarse seriate punctures

on the latter are not completely covered by the vestiture.

8. Gerstaeckeria lineatocollis, sp. n. (Tab. IX. figg. 18, 18 a.)

Short-ovate, very convex, black, the base of the antenne, the tibie, and tarsi rufo-piceous or ferruginous,

the entire surface very densely punctate ; variegated above with a dense clothing of rather broad, pale

brown and blackish scales, the latter clustered into scattered spots on the prothorax and elytra (one at

the middle of the fourth interstice the most conspicuous), the prothorax with a line of intermixed

whitish and pale brown scales down the middle. Prothorax small, transversely convex, rounded at the

sides, constricted in front, densely punctate. Elytra at the base a little wider than the prothorax,

moderately rounded at the sides ; shallowly striate, the striee with very coarse closely placed punctures,

the interstices feebly convex. Beneath coarsely, densely punctate; ventral segments 2-4 subequal in

length, the sutures straight. Femora unarmed.

Length 41, breadth 2} millim.

Hab. Mexico, “Sierra de Durango” (Hoge, ex Solari).

Narrower and less convex than G. tolucana, the prothorax relatively smaller and

with a whitish median line, the elytra less rounded at the sides and with flatter

interstices, the second ventral segment very little longer than the third. A single

worn specimen only has been seen of this species, but it is so different from its nearest

known Mexican allies that there could be no difficulty in identifying the insect.

ACALLES (p. 472).

4 (a). Acalles triseriatus, sp.n. (Tab. IX. figg. 19, 19 a.)

Subovate, black, the antenne, tip of the rostrum, and tarsi ferruginous ; clothed with a few small, scattered

brown, curled, hair-like scales, the depressions of the surface more or less incrustate. Head and rostrum

densely punctate, the latter short, stout, and obsoletely carinate. Prothorax transverse, rounded at the

sides, constricted and much narrowed in front, slightly hollowed at the base, shallowly sulcate down the

middle ; densely, confluently punctate. Elytra oval, produced at the apex, the humeri obtuse; coarsely

seriato-punctate, the interstices 3, 5, and 7 each with a row of scattered tuberculiform prominences,

that at the base of each of them cariniform and the one on 3 and 5 at the commencement of the apical

declivity oblong, large, and prominent. Ventral segments 3 and 4 short. Legs short; femora and

tibiee very stout, the tarsi slender, the intermediate and posterior femora unidentate.

Length 33, breadth 5% millim.

Hab. Mexico (Truqui, in coll. Fry).

One specimen. Near A. cinericius, but with a transverse, mesially sulcate

confluently punctate prothorax, the tubercles on the elytra differently placed (forming

interrupted series on the alternate interstices), the legs very short, the intermediate

and posterior femora conspicuously dentate.

RHYNCHOPHORA : CURCULIONINZ. 201

9 (a). Acalles truquii, sp.n. (Tab. IX. figg. 20, 20a.)

Oblong-ovate, narrow, black, the antenna, tip of the rostrum, and tarsi ferruginous; variegated above with

narrow, scattered, brown and ochreous scales, the latter becoming much more abundant on a common

v-shaped area at the commencement of the apical declivity of the elytra, the head densely clothed with

whitish scales on the vertex, the legs subannulate. Head and rostrum densely punctate, the latter

a little shorter than the prothorax and subcarinate. Prothorax about as long as broad constricted and

subtubulate in front, the disc depressed anteriorly and down the middle, the sides parallel at the base ;

coarsely, rugosely, confluently punctate, and with an abbreviated arcuate median carina, Elytra oblong,

a little wider than the prothorax, compressed at the sides towards the apex, and with the apical portion

somewhat narrowly produced, the humeri angularly projecting in front ; nodose and irregularly seriato-

foveate, the uneven interstices here and there bare and impunctate, the denser and paler vestiture mainly

confined to the oblique area on the apical declivity, the suture granulate at the base. Beneath sparsely

foveato-punctate ; ventral segments 2 and 5 subequal in length, 2 nearly twice as long as 3 and 4 united,

the first suture distinct. Legs moderately long, the femora unarmed.

Length 41, breadth 14 millim.

Hab. Mexico (Truqui, in coll. Fry).

One specimen, in very clean condition. Near A. rugulosus, and easily recognizable

by the densely albo-squamose vertex, the uneven, coarsely sculptured, carinate,

subquadrate prothorax, and the nodose, foveolate elytra, with a common v-shaped,

ochreo-squamose area towards the apex and the humeri angularly projecting in front.

9 (s). Acalles anchonoides, sp.n. (Tab. IX. figg. 21, 21 a.)

Oblong-ovate, black, the antennz and tarsi ferruginous ; clothed with a few widely scattered narrow ochreous

scales, the depressions of the surface more or less coated with a mud-like incrustation. Head densely,

finely punctate ; rostrum nearly as long as the prothorax, rugosely punctured at the base, for the rest

sparsely, minutely punctate. Prothorax nearly as long as broad, rounded at the sides, constricted and

narrowed in front, subtruncate at the base; coarsely, confluently punctate, the disc broadly depressed in

the middle, the depression with a sharply-defined arcuate median carina and a faint curved ridge on

each side. Elytra oblong-ovate, slightly wider than the prothorax, produced at the apex; nodose and

irregularly seriato-foveate, the third interstice with an oblong prominence at the base, the elevations

with scattered smooth granules, the humeri subangular. Beneath sparsely foveato-punctate, the ventral

segments 3 and 4 very short, 1 and 2 connate. Femora unarmed.

Length 33-34, breadth 13-1? millim.

Hab. Mexico (Truqui, in coll. Fry).

Two specimens. Less elongate than A. truguit; the head without a patch of white

scales; the prothorax not so rugose, and with a short, conspicuous carina in the broad

median depression; the elytra less compressed at the sides towards the apex, the

vestiture very sparse throughout, the humeri not prominent in front. ‘This species has

wholly the facies of an Anchonus.

17. Acalles binodulus, sp. n. (Tab. IX. figg. 22, 22 a.)

Short-ovate, very convex, shining, nigro-piceous, the antenne and tarsi ferruginous; variegated above with

a somewhat dense clothing of lighter and darker brown scales intermixed with scattered, curled, clubbed,

decumbent sets, the tubercle on the third elytral interstice with a cluster of larger adpressed ochreous

Head and rostrum densely punctate, the latter broad, rugose and carinate in the g, smoother

Prothorax short, rapidly narrowed from about the middle, constricted in

2DD2

scales.

and feebly carinate in the 2.

202 APPENDIX.

front; closely punctate (the punctures deep and rather coarse), the interspaces minutely punctured.

Elytra rotundate-ovate, gibbous as seen in profile, rapidly declivous from a little beyond the middle and

produced at the apex; seriato-foveate, the interstices rather broad, uneven, punctulate, and faintly

granulate, the third with a conspicuous tubercle at the commencement of the apical declivity. Legs

short, the femora unarmed.

Length 2,9,-3,1,, breadth 13-14 millim. (¢ 2.)

Hab. Mexico, “Sierra de Durango ” (Hége).

Two specimens, one of which has been presented to us by Signor Solari. Very

different from any of the other forms described in this work, and recognizable by the

gibbous, closely squamose, finely setose, bituberculate elytra. A. binodulus must be

placed near A. tantillus.

PSEUDOMOPSIS (p. 486).

3 (a). Pseudomopsis gibbus, sp.n. (Tab. IX. figg. 23, 23 a.)

Short, very convex, subrhomboidal, black, the antenne and the tips of the tarsi ferruginous; densely clothed

with broad, imbricate, brown scales, the elevations on the prothorax and the basal half of the elytra

closely set with erect or suberect black or fuscous scales (the surface thus appearing spotted), the

interspaces between the dark markings on the elytra variegated with brownish-ochreous, the scales

on the scutellum similarly coloured. yes separated by rather more than half the width of

the rostrum, the latter stout, curved, flattened towards the tip, and about as long as the prothorax ;

second joint of the funiculus nearly as long as the first. Prothorax strongly transverse, somewhat

conical, abruptly narrowed from the small lateral prominences, which are placed in a line with the two

larger, feeble, transverse, nigro-setose elevations on the disc before the middle, the base moderately

sinuate, the surface closely punctate. Scutellum small, densely squamose. Elytra much wider than

the prothorax, subtriangular, strongly transversely gibbous, abruptly declivous and flattened from about

the middle, and with the apices broadly produced ; with rows of coarse, scattered punctures placed upon

almost obsolete strive, the interstices broad, 2 and 4 here and there nodose along their basal half, the

prominence on 2 at the commencement of the apical declivity the most conspicuous. Legs rather stout ;

femora each with a very small tooth; tarsal claws small, free.

Length 4, breadth 21-21 millim.

Hab. Mexico, “Sierra de Durango ” (Hage, in coll. Solari).

Two specimens, one of which has been presented to us by Signor Solari. Larger than

P. laticollis, the elytra still more inflated, relatively broader at the base, with more

prominent humeri and larger elevations on the disc. The example selected as the

type has the basal half of the elytra sharply spotted and streaked with black. The

less sinuate base of the prothorax and the exposed scutellum distinguish P. gibbus

from Oxypterus.

OXYPTERUS (p. 490).

The generic name Oxypterus (Faust, 1896) is preoccupied, and it has been changed

to Oaytenopterus by Berg [Com. Mus. Buenos Aires, i. p. 18 (1898)].

RHYNCHOPHORA : CURCULIONINA. 203

EUXENUS (p. 494).

The generic name Huwxenus (Faust, 1896) is preoccupied, and it has been changed

to Euxenodes by Bovie [Ann. Soc. Ent. Belg. li. p. 67 (1907)].

MACRACALLES, gen. nov. (to follow the genus Dercynus, p. 502).

Rostrum (seen in profile) about as long as the prothorax, curved, moderately stout, received in repose in the

very deep prosternal groove, which is closed behind by the raised horseshoe-shaped mesosternal process,

the scrobes short, deep, extending to the lower margin of the eyes, and inferiorly placed; antenne

(fig. 24 6) inserted near the base of the rostrum, the scape clavate, slender at the base, not longer than

the first two joints of the funiculus united, joint 1 of the latter stout, 2-7 very slender, decreasing

in length, 2 as long as 1, 5-7 short and subequal, the club abrupt, comparatively stout, acuminate-

ovate, with distinct sutures; eyes lateral, large, rounded, almost covered in repose by the ocular lobes

of the prothorax ; prothorax transverse, produced in front, deeply bisinuate at the base, the narrow

median lobe prominent; scutellum small, rounded, flattened; elytra elongate-subquadrate, conjointly

produced at the apex, and with the inflexed lower portion almost covering the metathoracic episterna,

which are very narrowly exposed posteriorly; ventral segments 2-4 subequal in length; legs short;

femora stout, unidentate; tibiee stout, compressed, rounded externally, almost straight on their inner

edge, armed with a sharp claw at the outer apical angle, the inner angle rectangular; tarsi rather

slender, the third joint bilobed, pilose beneath, the claws long, slender, and divergent ; body elongate,

flattened above, nodose, densely clothed with flattened scales intermixed with very short, stout, blunt,

suberect setze.

Type, M. parallelus.

The single species from Mexico from which the above characters are taken

belongs to the “Tylodides,” and it is perhaps nearest related to Dercynus. Its chief

characters are, the very slender funiculus (joint 1 excepted), the abrupt, acuminate-

ovate antennal club, the flattened, rounded scutellum, the elongate, subquadrate

elytra, with the inflexed lower margins almost covering the episterna, the toothed

femora, and the long, slender, divergent tarsal claws. The general facies is that of

a small Nosoderma (Tenebrionide), and the insect doubtless lives under the bark of

trees.

1. Macracalles parallelus, sp. n. (Tab. IX. figg. 24, 24a, 6.)

Opaque, black, the antenne (the club excepted) and the tips of the tarsi ferruginous ; densely clothed with

brown adpressed scales, the elytra slightly variegated with darker brown, the short intermixed blunt

sete numerous on the legs and more scattered on the dorsal surface of the body. Head and rostrum

densely punctate, the latter with the long apical portion flattened, bare, and shining; the joints of the

funiculus each with a few projecting bristly hairs. Prothorax abruptly narrowed beyond the middle,

the sides crenate, parallel at the base, the short, narrow, apical portion subconical; the surface densely

punctate and here and there nodose, the median basal lobe convex. Elytra a little wider than, and

nearly two and one-half times as long as, the prothorax, subparallel in their basal half, the shoulders

rounded and somewhat prominent; with rows of coarse scattered punctures, the interstices densely

punctate, uneven, more or less nodose (except along a broad flattened space down the basal half of the

suture), the third, fifth, and seventh subseriato-nodose, the third somewhat raised and with an oblong

prominence at the base.

Length 48, breadth 23 millim.

Hab. Mexico, “Sierra de Durango” (Hoge, ex coll. Solar?)

204 APPENDIX.

One specimen, presented to us by Signor A. Solari, of Genoa, who has paid much

attention to Acalles and the allied forms during recent years.

MACROMERUS (pp. 506, 729).

Macromerus succinctus (p. 507).

This common Central-American insect, of which I have now seen specimens from

as far south as Peru, is inseparable from MW. numenius, Er. (Wiegm. Archiv, 1847,

1, p. 133), and Chevrolat’s name will have to be sunk as a synonym.

HILIPOMIMUS, n. n.

Hilipomorphus, Champ. antea, iv. 4, p. 520 (1905) (nec Desbrochers, 1891).

The name Hilipomorphus proves to be preoccupied for an eastern genus of Calandrine,

and Hilipomimus is now substituted for it.

TYLODERMA (p. 527).

Tyloderma eneotinctum (p. 528).

To the localities given, add :—Nicaraeva, San Carlos (Baker).

One specimen, kindly presented by its captor.

MAEMACTES (p. 528).

Memactes perforatus (p. 529).

To the localities given, add :—Costa Rica, Puntarenas (Biolley).

Two specimens, smaller than the Guatemalan types.

EUBULUS (p. 544).

Eubulus longipes (p. 560).

To the locality given, add :—Nicaracua, Chontales (Janson, in coll. Fry).

Described from a single specimen from Bugaba.

43 (4). Eubulus cristula, sp.n. (Tab. IX. figg. 25, 25 a, b.)

Celosternus cristula, Faust, in litt.

Subovate, broad, convex, shining, black, the antennw and apices of the tarsi ferruginous ; densely clothed

with intermixed reddish-brown and whitish, oval scales, the elytra with a common, transverse, black

basal patch (extending outward to the fifth row of punctures), and the third and fifth interstices each

with a crest of short, erect, black, setiform scales just below the base, the third interstice also with a

RHYNCHOPHORA: CURCULIONIN &, 205

similar crest a little nearer the middle, the prothorax with intermixed darker decumbent scales on the

dise, those on the flanks uniformly reddish-brown. Head rugosely punctate, the eyes large and

somewhat distant; rostrum about as long as the head and prothorax, curved, moderately stout, rugosely

punctate and carinate in its basal half, the apical portion bare and sparsely, finely punctate; antenne

(fig. 25 6) inserted at the middle of the rostrum, joints 1 and 2 of the funiculus equal in length, the club

elongate, compact, as long as the four preceding joints united. Prothorax strongly transverse, rounded

at the sides from near the base, narrow in front; densely, uniformly punctate, and sharply, finely

carinate. Scutellum small, oval. Elytra much wider than the prothorax, transversely convex,

arcuately narrowing from near the base; punctate-striate, the interstices densely punctate, 3, 5, 7, and

9 very sharply costate, 8 also with a short humeral ridge, the ridge on 3 and 5 undulate and cristate

below the base. Beneath densely punctate; first ventral segment with a transverse, interrupted,

densely squamose, median ridge. Rostral canal not quite reaching the metasternum. Legs moderately

long; femora unidentate; tibize curved.

Length 7, breadth 4 millim. (d ?)

Hab. Guatematat (ex Staudinger).

One specimen, labelled with the MS. name Celosternus cristula, Fst. This species

somewhat resembles Celosternus tardipes, Boh., but it is more nearly related to

Fubulus flavovariegatus and its allies. . eristula may be known by its long antennal

club, basally cristate elytra, unidentate femora, curved tibia, &c. ‘The transverse

ridge on the first ventral segment is probably a male character.

METRIOPHILOIDES, gen. nov. (to follow the genus Metoposoma, p. 983).

Head small; eyes large, rounded, widely separated above, coarsely facetted; rostrum deflexed, slender,

arcuate, the antenne inserted behind the middle, the latter with a long, cylindrical, slender, annulate,

pilose club and a closely setose funiculus ; prothorax with prominent ocular lobes; scutellum rounded,

convex; elytra broad, subtriangular; rostral canal very deep, closed behind, reaching about as far as

the hind margin of the intermediate coxe, and occupying the entire space between them ; mesosternum

depressed; anterior and intermediate cox about equally, the posterior pair widely, separated ;

ventral segment 2 longer than 3 and 4 united, the first suture arcuate and sharply defined; legs

elongate; femora linear, unidentate; tarsi rather slender, the third joint strongly bilobed, the claws

simple and divergent ; body subovate, rugose, squamose.

Type, MU. barbicornis.

The type of this genus is related to Metriophilus and Metoposoma, Faust, but differs

from them in having an elongate antennal club, a closely setose funiculus, long,

linear femora, a longer rostrum, a depressed mesosternum (the raised u-shaped process

being altogether wanting), &c. The distinctly annulate antennal club, depressed

mesosternum, &c., separate Metriophiloides from Cylindrocorynus, Schonh.

1. Metriophiloides barbicornis, sp.n. (Tab. IX. figg. 26, 264, 0.)

black, the antenne and the tips of the tarsi ferruginous ; variegated above with a somewhat

dense clothing of rather broad, ochreous, pale brown, and white scales (the white scales on the elytra

here and there clustered into small spots or patches), the elytral interstices and legs also set with

intermixed, longer, setiform, decumbent or semierect ochreous scales; the vestiture of the under

surface much sparser, the scales on the propleura large and broad, Head densely, rugosely punctate,

deeply sulcate between the eyes; rostrum reaching the front of the metasternum, flattened i" the apex,

shining, closely, finely punctate and tricarinate at the base, almost smooth in its outer half; antenne

Subopaque,

206 APPENDIX.

(fig. 266) with joints 2-7 of the funiculus decreasing in length, 2 twice as long as 1, all closely set

with fine, projecting, bristly hairs, the club a little stouter than, and about as long as, the three outer

joints of the funiculus united, 1 and 2 equal in length. Prothorax transverse, rounded at the sides

anteriorly, constricted and shortly tubulate in front, densely foveolato-punctate. Elytra about one-third

wider than the prothorax, with prominent tumid humeri; coarsely seriato-foveate, the interstices

narrow, rugose, and each with a row of scattered granules. Beneath alutaceous, very sparsely punctate.

Legs densely squamose, the anterior pair longer than the others.

Length 8, breadth 33 millim. (2 ?)

Hab. Mexico (Mus. Brit.).

One specimen, with the head and prothorax somewhat abraded. This insect bears

a certain resemblance to Metriophilus definitus (Ros.) *.

TYRANNION (p. 593) ¢.

Tyrannion diffusus (p. 597).

To the localities given, add :—Mextico (Hége, ex Solari).

PHACE (p. 614).

6 (a). Phace quadriguttata, sp.n. (Tab. IX. figg. 27, 27 a.)

Obovate, short, shining, black, the antenne (the club excepted), the tip of the rostrum, and the legs in part,

ferruginous ; densely clothed with small, rounded, imbricate brown scales, with a few scattered whitish

scales intermixed, those on the basal half of the elytra blackish-brown, the second interstice of the

latter with a rather long, and the fourth with a shorter, black streak (each preceded by two or three

whitish scales) just before the middle; the femora subannulate with white. Head densely punctate ;

eyes very large, separated by a little less than the width of the rostrum; rostrum arcuate, moderately

stout, as long as the head and prothorax, densely punctate, finely carinate down the middle, the apical

portion bare. Prothorax strongly transverse, abruptly narrowed just before the apex, the sides feebly

rounded, subparallel at the base; densely punctate. Scutellum very small, rounded. Elytra

comparatively short, subtruncate at the base, much broader than the prothorax, transversely convex,

widening to about the basal third, and obliquely narrowed thence to the apex; with rows of coarse

punctures placed along the narrow striw, the interstices densely punctate and subgranulate, 2 and 4

apparently somewhat swollen towards the middle. Legs short; femora feebly unidentate.

Length 33, breadth 2 millim. (¢ ?)

Hab. Msxico, “ Sierra de Durango ” (Hoge, ex Solari).

One specimen, in fresh condition. Less elongate than P. duplex; the eyes very

much larger; the prothorax narrower, feebly rounded at the sides ; the elytra shorter,

subcordate, less gibbous, the interstices 2 and 4 (not 3 and 5) slightly swollen at the

middle of the disc, and at this place streaked with black; the legs shorter; the

femora feebly dentate; the coarse scattered setiform scales wanting. The elytral

sculpture is almost hidden by the dense vestiture.

* Examples of this insect occur with coarser and sparser elytral vestiture, and the seriate punctures

(which each bear an oblong scale) conspicuous.

t Corrigendum : 7. pictilis (p. 597) was figured under the name 7. prctipennis on Tab. XXIX. fig. 15.

RHYNCHOPHORA: CURCULIONINA. 207

CRYPTORRHYNCHUS (p. 633).

Cryptorrhynchus lacteicollis (p. 650).

This remarkable species, described from a single specimen from Toxpam, Mexico,

has been recorded from Palmerlee, Cochise Co., Arizona, by Mr. C. Schaeffer [ Canad.

Entom. xxxvilil. pp. 343, 344 (1906)], whose examples were obtained by “ beating

mistletoe growing cn walnut.”

Vol. IV. pt. 5.

ZYGOPINA.

CRATOSOMUS (p. 2).

Cratosomus augustus (p. 6).

I have now seen a long series of this species (described from an imperfect male),

including both sexes, from the original locality, Chiriqui. The female has the densely

rugulose, squamulose pygidium (= sixth ventral segment) shorter and more transverse

than in the male, and the large fovea on the fifth segment obsolete. The first ventral

segment is unimpressed in both sexes.

Cratosomus pulverulentus (p. 7).

Additional examples of this species, from the same collection and locality, have

been sent me by Herr A. Bang-Haas. The female has a much shorter pygidium

than the male, the excavation on the first ventral segment shallower, and the groove

on the fifth reduced to a shallow oblong fovea at the apex. The swollen, subdentiform

apices of the elytra are slightly dehiscent at the sutural angle.

7 (a). Cratosomus insolitus, sp.n. (Tab. IX. figg. 28, 28 a, 3.)

Cratosomus insolitus, Faust, in litt.

Very like C. pulverulentus—and when fresh in great part covered above (except on the raised or tuberculate

portions of the elytral surface) with a crimson (or ferruginous) and pale yellow mealy secretion,—but

differing as follows :—The head deeply sulcate (not carinate) between the eyes, the longitudinal groove

on the vertex almost obsolete; the eyes less approximate; the prothorax more densely punctate, with

minute scattered granules and a faint median carina; the elytra with a smooth rounded tubercle

exterior to the very large one near the suture below the base, the prominence below the angularly

projecting humeri wanting, the seriate punctures larger and more irregular, the apices produced, not

swollen, and conjointly rounded. First ventral segment broadly excavate down the middle in both

sexes, the fifth with a large transverse fovea in the dg and a shallow longitudinal groove in the 9;

pygidium (= sixth ventral segment) very short in the @, much longer in the ¢, densely rugulose and

squamulose. .

Length 223-26, breadth (at shoulders) 10-11 millim. (¢ 2.)

Hab. Panama, Chiriqui (Zrétsch).

Described from numerous specimens found by Trétsch in Chiriqui, for some of which

we are indebted to Dr. Staudinger’s successor, Herr A. Bang-Haas.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. 2EBE

208 APPENDIX.

9 (4). Cratosomus interruptus, sp.n. (Tab. IX. figg. 29, 29a, 2.)

Oblong, shining, black, variegated above with dense, more or less confluent patches of brownish-cinereous,

hair-like scales, those on the prothorax nearly enclosing a very large, transverse, oval space on the disc

before the middle, and those on the elytra condensed into irregular spots and fascie on the depressed

portions of their surface. Head closely, finely punctate, broadly suleate between the eyes, the vertex

convex; rostrum about as long as the head and prothorax, arcuate, very stout, flattened, finely punctate,

becoming much smoother towards the apex, carinate at the base. Prothorax transverse, rapidly, arcuately

narrowing from the base, densely, finely punctate, feebly carinate down the middle. Scutellum oval,

sulcate. Elytra long, much wider than the prothorax, gradually narrowing from the somewhat prominent

humeri, transversely depressed at and below the base, and before and beyond the middle, the suture also

depressed anteriorly ; with rows of large, deep, oval fovese, which become much smaller on the depressed,

squamose portions of the surface, the interstices uneven, finely punctate, the third with a large, rounded

tubercle near the base. First ventral segment broadly excavate posteriorly. Pygidium narrowly exposed

beneath. Femora unidentate.

Length 17, breadth 7 millim. (9.)

Hab. Mexico (ex Staudinger).

One specimen. Differs from all the forms of the variable C. punctulatus in the

seriato-foveolate elytra, which want the large flattened tubercles on the alternate

interstices (the third having a single large one near the base), the longer rostrum, the

more even prothorax, &c. Compared with the nearly allied C. cwneatus, the present

species may be known by the more uneven, strongly foveolate, less cuneiform elytra,

the larger tubercle near the base of their third interstice, and the more transverse

prothorax. The elytra have three narrow confluent fascie before the middle, and

various irregular markings on the apical third, cinereo-squamose.

11. Cratosomus inzequalis, sp. n. (Tab. IX. figg. 30, 30a, ¢.)

d. Extremely like C. bidens (antea, p. 8, t. 1. fig. 16), but differing as follows :—The vestiture of the under

surface (especially on the sides of the metasternum) and legs closer and coarser, flavo-cinereous, that of

the upper surface very sparse and fine, and not condensed into oblong patches at the bases of the elytra

and prothorax; the prothorax without the two very small tubercles on the disc; the elytra with more

numerous, coarse, oblong punctures in the striz, the scattered tubercles on the disc smaller and (except

towards the base) oblong in shape, the apices unarmed*; the pygidium broadly exposed ventrally,

depressed, longitudinally carinate down the middle at the apex (transversely swollen towards the tip in

C. bidens, 3); anterior femora feebly bidentate, the others each with a single rather sharp tooth and

the small outer one completely obsolete.

Length 23, breadth 11 millim.

Hab. Costa Rica (ex coll. Solari).

A single male, extremely like C. bédens, but differing as stated above. This insect

was purchased from M. Donckier and it was doubtless received from the late

P. Biolley. It is the Costa Rican representative of C. bidens, the latter inhabiting

Chiriqui.

* The spiniform prominence at the apex of each elytron in C’. bidens was not specially mentioned in the

description of that species, though indicated in the figure.

RHYNCHOPHORA: CURCULIONIN &. 209

PELTOPHORUS (p. 20).

M. Desbrochers des Loges [ Ann. Soc. Ent. Belg. liv. p. 126 (April, 1910)] proposes

to change the name Peltophorus, Schénherr (1845), on account of the name clashing

with that of Peltophora, Burmeister (1835), to Opalocetus. This change is unnecessary,

and if a new name is wanted that of Apatorhynchus, Desbr. (1891) (type, Zygops

leopardinus = P. polymitus, Boh., var.), is available *.

ZYGOPS (p. 21).

M. Desbrochers (/. c. pp. 124, 125) has described, amongst others, two supposed

new species of this genus from our region under the names Z. latevittata and

Parazygops 8-maculata; these are synonymous with Z. trivittata (p. 30) and

Z. amenula (p. 27) respectively *.

HOPLOCOPTURUS (p. 53).

6 (a). Hoplocopturus niveiventris, sp.n. (Tab. IX. figg. 31, 31a.)

Hoplocopturus sp., antea, iv. 5, p. 55, nota.

Subelliptic, moderately shining, piceous, the antenne and the tips of the tarsi ferruginous; the prothorax

aparsely clothed with transversely arranged, long, hair-like scales, which are clustered into a faint

submarginal vitta on each side; the elytra mottled with smaller, ochreous, fuscous, and white scales,

the ochreous scales clustered into a large, irregular, common, X-shaped patch on the disc and various

scattered spots, and the white ones into two transverse marks at the sides; the vestiture of the legs and

under surface (the mesothoracic epimera excepted) white, the femora fusco-annulate towards the apex.

Prothorax short, obliquely narrowed from the base, closely, coarsely punctate, the punctures transversely

confluent on the disc, the disc in one specimen with a smooth median line. Elytra much wider than the

prothorax, depressed along the suture anteriorly, deeply punctate-striate, the interstices feebly convex

and closely punctulate. Meso- and metasternum hollowed between the middle cox, the mesosternal

depression limited anteriorly by an arcuate ridge, the mesothoracie episterna with a smooth space above

the coxe. Legs elongate; femora unidentate, the posterior pair with a minute tooth placed at some

distance exterior to the larger one, the intermediate and posterior pairs carinate externally ; anterior

knees armed with a short, and the others with a long, spine.

Length 5, breadth 23 millim.

Hab, Nicaraaua, Chontales (Janson).

‘Two specimens, one (as noted, anted, p. 55) now without a head. Near H. nubdilus

and H. sulphureus, differing from both in the transversely rugose prothorax, the sparser

vestiture, which is white beneath, the shining surface, &c. The elytral markings are

more irregular than in H. spinipes, and ochreous in colour.

* Of. Champ. Ann. Soc. Ent. Belg. liv. pp. 211, 212 (July 1910).

2 EE 2

210 APPENDIX.

TACHYGONINA.

TACHYGONUS (p. 131).

4 (a). Tachygonus quadrisignatus, sp.n. (Tab. IX. figg. 32, 322.)

Rhomboidal, depressed, shining, black, the antenne, the anterior and intermediate legs, and the third and

fourth joints of the posterior tarsi, testaceous; the upper surface and posterior legs thickly set with long,

fine, erect, brownish sete, those at the base of the femora white, the elytra also with a scattered series

of imbricate, decumbent, ochreous sete along the suture, the flanks of the prothorax and the sides of the

body beneath clothed with pectinate white scales, the elytra each with two small matted tufts of similar

scales—one, oblique, near the suture at about one-third from the base, the other, oblong, on the fifth

interstice beyond the middle; the anterior and intermediate legs with long pallid hairs and whitish

scales. Prothorax small, transverse, subconical ; somewhat closely punctate, except along the smooth

" median space. Elytra broad, transversely cordate, coarsely seriate-punctate, the interstices narrow,

sparsely punctate. Posterior femora elongate, armed with four long (two on each side of the shallow

groove beneath) and several smaller teeth. Posterior tibie arcuate, moderately stout, sharply toothed

at the inner apical angle.

Length 24, breadth 1? millim.

Hab. Mexico, “Sierra de Durango” (Hége, ex coll. Solari).

One specimen. Near 7. semirufus, but larger and differently coloured ; the posterior

femora less elongate and armed with four long teeth (placed in two pairs on each

edge); the posterior tibie sharply toothed at the inner apical angle; the elytra less

transverse, each with two small, oblique, oblong fascicles of pectinate white scales,

and the imbricate sete along the suture much longer. ‘The prothorax is without tufts

of erect hair on the disc. No reliance can be placed on the locality quoted, the insect

being probably from the State of Vera Cruz.

BARINA.

PANTOTELES (p. 181).

4 (a). Pantoteles carinicollis, sp.n. (Tab. IX. figg. 33, 33a, ¢.)

3. Elongate, piceous, densely clothed with smail narrow flavo-cinereous scales, these becoming a little larger

‘and whiter on the under surface, the elytra with a few intermixed fuscous scales on two transverse

spaces on the disc. Head densely, the rostrum very sparsely and finely, punctate, the latter slender and

about as long as the prothorax. Prothorax slightly broader than long, gradually narrowing from the

base and abruptly constricted at some distance before the apex, the base itself deeply bisinuate; densely,

finely punctate, and with an incomplete, slender, polished, median carina. Scutellum large, strongly

. transverse. LElytra moderately elongate, considerably wider than the prothorax, transversely depressed

below the base, gradually and obliquely narrowing from the rather prominent humeri; very finely

punctate-striate, the interstices flat, densely, finely punctate. Legs elongate, the anterior pair longer

than the others; tibie ciliate on the inner edge towards the apex; anterior tarsi thickly, the others

more sparsely, set with long, projecting, bristly, blackish hairs, the anterior pair elongated and with the

basal joint about as long as 2 and 3 united.

Length 63, breadth 2¢ millim.

Hab. Panama, Bugaba (Champion).

RHYNCHOPHORA: CURCULIONINZ. 211

One male, in very fresh condition. Closely allied to P. tenuirostris, Boh., but

differing from that insect in its more elongate form, the almost uniform vestiture

(the scattered fuscous scales on the median third of the disc of the elytra being much

fewer in number), the less transverse, finely carinate prothorax, the longer elytra, and

the elongated strongly nigro-setose anterior tarsi of the male.

GERAUS (pp. 260, 488).

7 (a). Gerzeus euryonyx, sp. n.

Centrinus senilis, Casey, Ann. N. York Acad. Sci. vi. pp- 576, 589 (nec Gyll.).

Gereus senilis, antea, iv. 5, p. 265 (part.).

Signor Solari has recently sent me for examination a male and female of a Gereus,

found by Hoge in Mexico (?Sierra de Durango), agreeing with Colonel Casey’s

description of Centrinus senilis, which was based on a single (2) example from

Arizona. ‘These specimens have the tarsal claws sulcate beneath and broader than in

Gyllenhal’s species, the rostrum less curved (especially in the female), and the elytra

less attenuate posteriorly. The form with the broader tarsal claws, from Arizona and

Mexico, therefore requires a new specific name ; it will probably have to be removed

from Gereus. The single male seen has moderately long prosternal spines.

Vol. IV. pt. 7.

COSSONINA.

PSEUDOPENTARTHRUM (p. 14).

Mr. E. A. Schwarz, of the U.S. Nat. Mus., has sent me numerous representatives

of this genus from Tampico for examination, one of which is described below. The

others are extremely variable znter se; and it is difficult to say whether they belong to

one or two inconstant forms or to several species; they seem to connect P. depressi.

frons and P. foveifrons (anted, pp. 18, 19), with neither of which they absolutely

agree.

6 (a). Pseudopentarthrum caudatum, sp.n. (Tab. IX. fig. 34.)

Narrow, conico-cylindric, convex, shining ; nigro-piceous or black, the antenne, tibix, tarsi, and the explanate

apical margin of the elytra, more or less ferruginous. Head unimpressed, very sparsely punctate ; rostrum

extremely short, broad, sparsely punctate, transversely depressed at the apex. Prothorax slightly broader

than long, constricted and much narrowed anteriorly, closely punctate. Elytra very little broader than

the prothorax, perceptibly widening posteriorly, the outer margin with a blunt tooth-like projection

towards the apex, and the apical margin obliquely explanate from a little beyond this to the slightly

dehiscent sutural angle (the margins of the elytra thus appearing narrowly excised before the tip) ;

rather coarsely punctate-striate, the interstices flat, finely uniseriate-punctate.

Length 14-13, breadth 3-3 millim. .

212 APPENDIX.

Hab. Mexico, Tampico in Tamaulipas (Schwarz, in U.S. Nat. Mus.).

Two examples (one of which has been presented to us), found on Dec. 21st. A

very small, remarkably distinct form, with the elytra explanate at the apex somewhat

as in Pentarthrum apicale, Broun, and with a blunt tooth-like prominence on the

outer margin near the tip. P. cawdatum is related to P. phleophagoides, Wolk.

INDEX.

[Names in small capitals refer to Families, &.; 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

ACALLES .......-..00 200 eee 200

Acalles wi. cece ccc cee eas 199, 204

anchonoides ...........:5 201

—— binodulus.............. 201

binodulus ....... 0. cece 202

CUNEFICIUS Lecce cece eee 200

—— rugulosus ...... 6. eee 201

tantillus we. .e eeu cease 202

triseriatug...........068. 200

— truquii we... eee eee 201

ACAMPME Loc eee ce ewes 1

ACAMPTINA wo... cece eee eee 1

Acamptoides .....eccecc cane 1

ACAMPTOPSIS ..........0005 2

ACAMpPLOPSS coeeccsereeceees 1

cubanus,............005 2

encaustus ...........0.. 2

Acamptus .ociecccecceeees 1, 2,3

CChINUS 2. cco ce cee ececes 3

PUPUAUS oe cee cee cseceees 3

ARTHES 2... cc cee ee eee eee 100

spinicollis..........00.. 100

Allomimus oc... cece 30, 31, 32

—— dubius ........ 80,31, 35, 36

Politus .....eeceeevcaee 35

AMBDAEES . Lecce cera eeeee oes. 96

ANCHONINA wee see eee eee 181

ANchonus ... 0. sees 8, 10, 181, 201

granulatus oe. csieveees 181

ANTHONOMINA occ eee eee eeee 185

ANTHONOMUS vo. secs eee eee 186

ANthonomus ..ccccecsrecveee 178

—— @eneotinetus ......eeeees 186

alboscutellatus ......000. 187

—— annulipes ...........04 186

ciliaticollis ..........0. 186

——- dealbatus ........0+005: 189

CUZEN . cc eee ee eee eens 186

—— filirostris .... ee ece eee 187

Page

Anthonomus fulvipes .... 188,189

fuscomaculatus ........ 187

tsthMicus ....eeceeecees 188

—— managuensis ........ .. 188

—— melanostictus .......... 186

MEXLICANUS 6. eee eee 186

MANUS. cece vcev cence 189

——_ pilosus occ ec ee cece 187

solarii ..... 0... eee eee 188

solar’ ......5 ocean eee 189

——— SGUAMANS 66. cece eeee 189

—— sulcipygus..........606. 186

tenutrostris . 2.2... cee 187

—— texanus............ ,... 187

triangularis ..........6- 187

— triangularts ......665065 188

triangulifer ........ 187, 188

uniseriatus .........06- 188

Apatorhynchus vo... 2 ce ec enes 209

Apotrepus vec cceccccreceees 21

BARINA wo. cece eee cere eeeees 210

Borophleus ... 0.11 eeee 42, 43, 62

MANOP seeee pete e eae 48, 49

MUTTAYL vv vceececenee 47

puncticollis ssrscseseeee 49

Brachytemnus ...sseseves we. 76

CACTOPHAGOIDES ....-+++++ 89

Cactophagotdes ....660.000- .. 90

gibberosug ......++es05 90

—— VerTuCOSUS ....--eeeeee 89

VEFTUCOSUS wes ee sree .... 90

CACTOPHAGUS ..seeeeees 82, 177

Cactophagus .. 79, 90, 91, 103, 158

AUPTCULATUS cece sceneries 127

—— bifasciatus......esverees 85

Page

Cactophagus ciliatus.......... 85

CUIATUS Lo cee cece eceenes 82

—— cirratug..............6. 87

——_ crrratus oo. cee eee 83, 177

——fahrei ......... 0... 83

Fahr@t weve eee 82, 84

mintatopunctatus......0. 93

MAWVAAL serve ceeveees 123

oblique fasciatus ........ 84

—— pulcherrimus .......... 88

—— pulcherrimus ........ 83, 95

quadripunctatus ....... . 181

—— rufocmctus ........ 86, 177

—- rufocinctus ......54.. 83, 87

rufomaculatus .......... 86

rufomaculatus ........46% 83

sierrakowskyi .......... 87

seerrakowskyt ...eceeees 3

spinol@ ........... ee eee 84

—— spinole ...... 82,83, 85,1038

— » var, validus........ 82

stigmaticollis ....eeeeee 123

— , var, cuneatus ...... 124

striatoforatus .......... 83

—— striatoforatus ......465 82, 100

SUDNIULENS .oecsieeeeeees 84

tibialis ........6. 86, 88, 177

—— validirostris ........ 3)

validirostris .... 666 82, 110

VALIAUS voce ccc eee 84

CALANDRA cee cee eee e eee 168

Calandra voce cece nec c ences 167

albipunctata oo. -aveeeees 99

—— Gur ofasciata ve... eees 90, 96

—— bifasciatd ... 6. cece eee 84.

DOrassl. os eee eee .. 79,177

CATUOSL voc ec v eee vanes 158

CINRAMOMING .vseereces 177

crenatosulcata .ssveveees 171

214

Page

Calandra cribraria ......006- 149

dimidiata ..... 0.0 eee aee 105

fASCIALA cece ee eeenee 109

——— JEPMAT Loe vevccrrccnves 80

QTANATIA ..cce eee e ee eee 168

larvalts vc cccscaceceuves 158

—— linearis ............0.4- 169

——— MEXICANA ....... 2. eee 170

= MEXICANA vec ievcvvseces 168

OTYZE eee cece eee ees 169

—— punctata .iicesececeeee 137

—— 5-punctata ....ce eee 149

TUGUCONNS .eoceccsseeeces 169

—— sanguinolenta .......... 91

—— sericea ...... .. 101, 103, 105

—— setulosa....... cece eee ee 169

———_ 8€tUL0SA Le cee . 170

SUBULALA. cee cece wees 173

——— tamarindt ..... cece nee 169

—— 18-punctata ........000- 149

ZEA~-MQIS vee eccccvaces 169

Calandrid@ eee cece ccuee 171

CALANDRINA..... 2.00000. :.. 167

CALANDRINE ....ceeeseeees 79

CALYCIFORUS 1... cece cece eee 77

Calyciforus...ccrcveeeeeeee 76, 78

CVOSUS cee cee cence 77

OXCavatUs ........ee eee 77

—— ineequalis .............. 77

CARPHONOTUS .......0.0 e008 39°

Carphonotus .icvcceccceccees 31

ochreipilis.............. 39

LESLUCEUS occ eee ccaees 39

CAYOLETHRUS ..eeeee eee eee 24

Catolethrus oe cccccccavcncas 27

DASAUS vee eee cece eens 26

ebeminus ......0... eee 26

EDENINUS ec ecceecccees 25

—— fallax... ce cee eee eee 26

SFAWUAL vec iecccneee 24, 25, 27

—— fulvolimbatus ..,..... ». 25

—— interstitials ,.......004. 26

—— leviusculus ...c..ceee 24, 27

— longulus ............,.. 25

longulus ...... 24, 26, 27,72

NASAMS 66.04.20 0045 24, 26, 27

PAIMEUS occ ev cveeeenee 14

CAULOPHILUS ........00000. 39

CaUlophuus vivecvcecccceees 37

Costatus..... cece eee eee 40

COSLATUS wee cee sv enaee 39, 41

—— latinasus ...,........., 40

lAtiNASUS 6. ee eeeeeene 39, 41

SCULptUTALUS 6.6... eeeeeee 40

sericatuS ...........00. Al

——— SEFUCATUS ps geuees

INDEX.

Page

Caulophilus verecrucis ...... 41

VETECTUCLS sev eres vevae 40

Centrinus senilis ... cc eee 211

CERATOPINA...se eee e ee ees .. 182

CERATOPUS ....ese cee eeees 182

Distgnatus ... 66. eeeeeees 183

maculicollis ...........- 182

Chaleodermus angularis ...... 198

Cheerorrvhinus.. ccc ccceceecaes 10

—— squalidus ....cccecevees 4

CHG@RORRHYNCHUS......-0-. 3

Cheerorrhynchus ..ccceeeeees 1,2

tenuitarsis........e.e eee 4

CHOLINA vee e eee e ee eee nee 194

CHOLUS ..... cee reece neers 194

ChOUS ccc cece ewe enes 178

albiventrts oi... cece eee 196

—— albovittutus ............ 195

—— circumnolatus .....eecee 195

Lecide0suS 1. eevee eevee 196

longipennis .........+.. 194

——— Longipennts vo. ceececees 195

——— MOTIO oo e eee ewer eeeee 195

—— multiguttatus ......666. 196

pallidiventris ..sccsseee 196

— tessellatus..........005. 196

tuberculifer ce. cccce cease 195

COnIne voc cecccccceceeecuce 185

CIONOPSIS 0... 0. cece cece ee ees 185

—— palliatus .............. 185

CLEONINA 1... cece eee eens 181

Ceelosternus cristula...... 204, 205

LAVAS 6. eee ccc ne ens 205

Coptus voc cecececeeeceeuees 13

Cordyle striatus. .... ccc eens 169

COSSONIDES ...... 0c eee eee 22

COSSONINA ..eee eee eeeee 7,211

COssOnint secceseraceves vase 22

COSSONUS ....e.. cece eee wees 42

Cossonus .....64 41, 46, 48, 51, 72

ADSCUSSUS vee cece ee ees 73

—— alffaber ............, ... 59

AMDUGENUS . oa eeeeeres . 87

——— AMI IUGUUS Lode cevcnne 57

ANEIGUUS eee ev eeeee nee 64

—— aterrimus ...........00. 61

—— bicolor ...........0.00- 59

Dicolor vee eee cece eeeues 60

—— hbifoveatus...... tees 65

bifoveatus ........ savers. 66

-—— bigeminatus ............ 69

bisulcatus ...........00. 52

bivittatus ...........0.. 70

—— bivitiatus ..... cee eee 64.

—— bulbtrostris wo... cee 54

—-— canaliculatus veeevepecs 68

Page

Cossonus carinifer.........045 50

— catolethroides .......... 71

— calolethroides .......06. 42

—— CavirostViS...... eee eee 51

——— CAVITOSETIS Lee 52

circumfusus ..........+. 60

—— CONCINNUS vee ccncvcnee 62

—— CONICTVOSETIS 6. eee ee eee Al

—— convexicollis..........6. 55

—— convericollis ......eceeee 66

— convexirostris ........++ 72

—— convexirostris ...c..eeee 42

convexiusculus.......... 62

convexiusculus ....,... 68, 68

— corticalis ...........0. 54

——_ corticalts .....seeevenes 55

—— corticola ........eeeeee 48

—— corticola. ........00. : 47, 50

—— CrenatU8 .......00s 47, 48, 50

—— curvatostriatus ...... 600s 64

———— CUPVAEUS cece recrences 56

—— cylindripennis .......... 44

deplanatus .....eeecees 52

—— depressicollis .......... 46

depressicollis.....6005. 49, 63

Aepressus ..eseeveeeee 41,42

AUDWUS ve ecccrecccnecee 30

—— duplicatus............0. 67

—— duplicatus..........000e 63

—— eUTyaspiS ..........000 56

—— CU YASPIS over iccenneee 57

—— eVanesCenS ....... ce eee 68

—— EVANESCENS Lever secvcee 66, 69

—— exaratuS we... cece e eee 62

— exaratus.... 49, 61, 63, 67, 68

5 re 5d

SEVIUGINCUS Vic cee cree 42

flavovittatus............ 63

—— fossatus ........ “eee eeeee 53

—— foveatuS ..........006- 65

Sfoveatus......4. 56, 66, 67, 69

—— guatemaltecus .......... 49

guatemaltecus ...seceees 50

—— guildingt ..iccccreeee 55, 56

—— hamiltont oc cee cceccces 60

hepburni ............4. 48

hubbardt ..cce cere eves 72

CL a 68

—— impressifrons ...... 48, 50, 63

—— impressus .............. 63

UNPVESSUS v6 cer eveves 49, 62

irregularis .........005 66

—— latipennis.............. 58

—— latirostris .............. 47

—— lattrostris ..... cece acces 48

latus .. ces cee ese eeneeee 59

Page

Cossonus latus ...... 42,43, 54, 72

leDdSt oo ee eee eens 56, 65

—— ligniperdus ............ 67

—— ligniperdus .......... 68, 69

MACLALUS 6. cere eeevnee 69

—— marcidus ...........06. 71

MAPCIUUS .... 6c evens .. 48

= MEXUCANUS oo ev ccccecee 66

—— MICraspis ...........06. 57

MICYASPIS woe ceeeseesees 43

Le 47

multiforus.......0.eeeee 47

—— nitidicollis ............ 69

oculavis..........ee sees 67

—— parvicollis............-. 61

parrvicollts ...cccececeees 58

—— perfidiosus ............ 56

—— perfidiosus ........ ‘67, 61, 65

PUCIPENNIS . 6. cece renee 40

——— MNJUUS vec eccvcvccaeees 40

piniphilus ......4. 47,51, 59

—— planirostris ............ 53

planus ....... eee eee 52

—— puncticeps ............ 45

puncticollis ............ 46

—— puncticollis 42, 43, 49, 72

—— punctifrons ............ 66

—— purulensis.............. 62

—— purulensis ........000% 46, 68

TELICULATUS. 6. eee c ec eeee 54

PUPFESCENS weveeresseeees 62

—— rufonotatus ............ 57

PUFONOLALUS . 6... seceees 61

——— TUQOSUS .. eee cece eee 45

SATQL cc cece eee ee ee eee 58

Scrobicollts. . 6. ce eee 69

scrobiculatostriatus...... 55

— scrobiculatostriatus.... 56, 57,

61, 65

—— seQniS ........--.. ‘ 64

semirufus ..........e00e 53

silbermanni ............ 51

spathula ......... ee eee 72

——— spathuld.....ceseceees 42, 89

subcarinatus .........+6- 50

SUDCATINATUS coececeees 46, 50

—— subopacus..........e0e 45

SULCTFTONS wevsceceeseees 54

SUICLVOSEIUS. cece cence 54, 55

—— thoracicus.........0.08- 70

—— thoracicus ....ccveveees . 71

LOPPUdUS cee cee cece eee 73

VUEAEUS Voce cca cceeees 64, 70

VUINEVALUS vo. cae eneeeees 68

—— xylophilus.............. 49

—— xylophilus ...... 45, 46, 47, 50

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910.

INDEX.

Page

CRATOSOMUS..........0c00ee 207

Cratosomus.....cccccccecnees 178

AUCUSEUS ...e cee ree eee 207

—— bidens woe e ec ceecc eae 208

cuneatus ........ oe 208

—— inequalis .............. 208

insolitus ...........00. 207

interruptus ............ 203

—— pulverulentus .......... 207

punctulatus ....... 6.68. 208

Crepidotus oo... cece cece ceeee 167

Cryptorhynchint ... 06.0.0. 8. 1

CRYPTORRHYNCHINA ......6. 198

CRYPTORRHYNCHUS.......... 207

lacteicollis............0. 207

Curculio barbirostris .......... 176

canaliculatus....... cee 68

—— cribrartus oo. 149

fasciatus... .. ce eee. 109

GTANGIUS oc ceccceveces 168

leptoCerus ..ceesescreces 149

ODSCUIUS. cece cece ce ceees 149

CT 169

PALMATUM vovccvecencces 81

—— ]4-punctatus.... 0.0.46. 149

sanguinolentus ......465 90, 91

—— 13-punctatus........ 119, 149

CURCULIONINE .......... 1,178

Cylindrocorynus .cecvecrcvccee 205

DENDROCTONOMORPHUS.....- 76

BreVUs. cece cece wees 76

paralielus ............6 76

Dercynus vivvcscvcvccevvecs 203

Derelomus ...cccevecvees 5, 7, 184

Dicedimorpha....ccecvcvees 18, 14

DIONYCHUS ....--e eee eceee 198

parallelogrammus ...... 198

DIOPTROPHORUS ...eeeeeeeee 181

Dioptrophorus ...seveveveees 10

OCULATTS voc ccveeccoeeees 181

stmpled ..sveceeeceewers 181

Disodontogenus wollastoni .... 89

DRYOPHTHORIDES ....+++-6- 8

DRYOPHTHORUS ....-+eees . 8

Dryophthorus .scseevveevees 9, 10

AMELICANUS veveesvevees 8

COCOSENSIS .. eee eee eee eee 8

Corticalis sc eeceeeereees 8,9

—— lymerylon oo cseveeeveees 8

quadricollis ......+.++++ 8

Dryotribus mimetious ....+++: 10

DYNAMIS ....cee cere eeeee 79,177

borassi ... cece ee eee .. 177

—— germari......s+eeeeee 80

Page

Dynamis peropacus .......... 80

POUtUS Locececcvcacces 79

ERETHISTES .........0000 08 . 196

Erethistes wo... cc ccc uaceeee 178

CYANIPES over eevceee 197, 198

—— fasciculosus ..........4. 197

Fascicwlosus ...ceccveaes 198

—— ochriventris ............ 196

subviolaceus ..........4. 197

treangularis ........ 197, 198

—— truncatus ..........005. 197

ERIRRHINA 2... cee eee ee eee 183

EUBULUS ... ee. cee ee ee eee 204

—— cristula ........... 0008. 204

CYIStULA oo cee cece eee 205

Slavovartegatus.....cceees 205

—longipes ..........60.. 204

EXUCACTOPHAGUS ......0-000- 96

Eucactophagus ..ccccccewcces 90

aurocinctusS .........06- 99

—— aurocinctUs ........ 6% 96, 97

—— aurofasciatus .......05- 98

—— CAVINIPyga.....seee eens 98

—— CATINUPYYA. ev cvevees . 96,99

duplocinctus...........- 97

duplocinctus ......005. 92, 96

graphipterus.......+...- 98

graphipterus .e...ee 96, 100

—— orizabensis ............ 97

—— orizabensis......«. 96,98, 113

PLUINOSUS ...... eee ee ees 99

PTUINOSUS vreeeveeeeeees 97

EUCOptus. ccc veneer ecccenes 27

EXUgnoristus oe cccveccvevrees 167

Eutornus littoralts.....+. cece 73

ELULENOdES vv vcvccvccccvecee 208

TEUXENUS we. cee e ee eee eee 203

GRRABUS.. cece eee eens 2i1

CULVONYX oo... eee ee eee 211

SENUUS vv cccvcccacvseee 211

(JERSTAECKERIA 1... eee eee 199

—— curvilineata .........05. 199

—— lactl oer cccacccncccaces 199

—— lineatocollis ............ 200

tolucand ....eee eevee 199

LOUCUNA ves cevncnenenee 200

Gymnétrides .....eeerereeees 185

GYMNETRINA ceceeeeeeeeeee 185

FHalowenus occ cccv cv vcvnceees 73

TMMIUGFANS ove vceennes 73

2 FF

216 INDEX.

Page Page Page

Frama once cccceienavaveces 191 | Hoplorrhinoides attalee ...... 7 | MEGALOCORYNUS............ 41

bahamensis .s.cssvveeee 191 pallidus.............0.. 7 Megalocorynus ..cccccccceeee 42

TTarpacterus ....cceecceveves 175 Hoplorrhinus .....6 ccc eee 4,5,6 capitatus .......44... 41, 42

EDENINUS. 66. eee ee eens 175 CYISPUS cece eee cece eens 5 conerrostris . 6. eee eee 42

quadrisignatus ......60-- 175 MEVICUNUS voc ceceveeeee 5 —— depressus .............. 41

HEPTARTHRUM.......-0-0005 22 | Hylastes ...... ccc cece aee 73, 78 depressus........4. 42, 51, 58

— cordillere ...........4-. 23 Hylesinus canaliculatus ...... 68 Merothricus ..... 0.0.0 cece uae 153

costatipenne ...........- 23 FIYLOBIINA 1... . eee eee ee 178 MeEsocorDYLUS ............ 172

gibbipenne .......... .. 22 bracteolatus ..........., 174

Gibbipenne ...eccereeeees 23 bracteolatus ........ 172,175

Hleterotorxus oe ccsccseceeceee 101 ILEOMUS ...... cece ee eee 182 COOLOMEFUS oe eee 175

GTALUS ..ereeccsrereees 101 distinguendus ......400.. 182 cylindraceus ..........4. 175

transatlanticus ...... 101, 102 extensuS ..........005- 182 dispersus .............. 174

Hexarthrum .occccccc canes 10,76 | IscHIOMASTUS .............. 181 Aispersus oo. ce eee cee 172

HILIPINUS..... be sa9.00y atin 180 | Ischivmastus ..........005- 1,180 —— gracilis .............00. 173

—— biannulatus ............ 180 albomarginatus ...... .. 181 —— gracilis 6. ec cee 172

HIDIPOMIMUS 2... ee eee ee eee 204. MAPYINALUS Lee ceee veces 1 TMMUNAUS eee cee 172

ATTilipomorphus vi cccceecceees 204 marginatus ............ 181 LOPPOSUS Lecce cece ec eee 173

FIILIPUS ... eee eee eee eee 178 —— plinthoides..... 0... .000 1 MEMNONWUS vee eeveesees 172

albopictus ......6. feeced 178 torulosus vee eeeeecscves 1 papulatus oo... ccc eee 173

areolatus .s..400. eacaine 180 | IsoTRACHELUS .............. 198 pustulosus.............. 1738

collectus ......ceeeeee- 179 tibialis .............00. 198 Pustulosus oo ceceececcres 172

cruciatus ....... eee eee 1738 Ts0trogus oc evccccccccceees 27 rUgICOINS Lecce cece cece 175

—— fenestratus ,........06% 178 TtRQurd voc icccccccccccecnes 10 —— sphacelatus .........00. 174

hieroglyphicus ........+- 179 —— striatus..............., 172

—— intensus ..cccccccceccues 180 —— subparallelus............ 171

——limbatus ..........008. 178 LAMOSACCINA .......e cee eee 194 subulatus.. ........0008 172

patenS .... cscs eee eee 179 LAMOSACCUS ....... see e eee 194. METAMASIOPSIS ............ 100

—— spinipennis ............ 179 hamatus ..civscecseces 194 Metamasiopsis .......0...00, 101

trifurcatus...........06- 179 sulcifrons ............0. 194 decempunctatus ........ 102

HIMATIUM ..... cee cece eee ee 23 | Lipancylus ..... 0. cece 28 decempunctatus...... 101, 103

——— COMICUM ve ca recevevence 24 LITOSOMINA ..... ee ee ee eee 170 flavopictus _............ 102

CPTANS ca vceeeues re 24 | Lixvomorpha .........000ee 1,181 Jlavopictus.......60. 101, 103

—— pubescens .ereessseees 23, 24 — albomarginata ........ 1,181 —— rugipectus.............. 101

rugicolle ........ee cues 24 | LIXUS.... eee eee ee eee 181 TUGIPCCLUS WoL e ee eeceee 102

Homalonotus occ cceccccceens 195 | Lexus oo. ec e cc cc cc eee ee ees 182 | METAMASIUS............ 108, 177

HOMALOSTYLUS ....eeeeeee, 117 breviculus.............. 181 Metamasius .......... 79, 82, 101

Homalostylus sc... eee ceees 79, 118 LL 182 GMBIG“UUS 66 occ cecceces 105

dentirostris ............ 118 —— bigeminatus..........., 108

—— dentirostris .... 117,184,177 — —— bigeminatus ............ 104

—— incertuS............. ... 118 MACRACALLES .........-.00. 208 biguttatus...........0.., 108

——- nigrofasciatus .......... 117 MACRANCYLOIDES .......... 75 | —— bisbisignatus............ 114

-—— nigrofasciatus ...... 118,129 | Macrancyloides..........0006 73 | ——eallizona ............., 113

subcylindricus .......... 119 perlongus .............. 75 | ——eallizona ........., 102, 105

Homaloxenus. oi. veeeceee 4, 5, 22 Macrancylus .......... 22,73, 75 —— carbonarius ............ 106

AENtYPES vvevesssvvccvees 5 —— linearis ...... 0.0 eee 73, 76 —— cincinnatus ..........,. 110

HopLocoPpTURUS ............ 209 | MacroMERUS .............. 204 | emeinnatus ........00.. 104

niveiventris ......... ~». 209 ——— NUMENLUS vec ersveseacs 204 cinnamomeus .......... 103

—— nubilus ...... rere 209 succinctus........ seen 204. cinnamominus .......... 177

——— BP. se neens beeen eeeees 209 | MacRoRHOPTUS ..... os eeeee 190 | ——connexus ............., lll

SPINIPES w0..6.. be eeccees 209 | ——estriatus .............. 190 CONMEXUS oo... eee eee, 104

SULPHUTEUS 6. eee eeee ». 209 spheralcie ............ 190 | ——dasyurus .............. lil

HOPLORRHINOIDES .......... 6 | Macrorhyncolus............ 22,73 | —— dasyurus .......... 104, 112

Hoplorrhinotdes........00045 ee) M@MACTES ......6.....5- .. 204 decoratus .......0....., 105

attales ........ reer 6 perforatus.......... .... 204 | ——dimidiatipennis ......,, 106

Page

Metamasius dimidiatipennis 103, 111

AISPAP vee c eee ceeeeee 114

ENSUTOSEIIS eee eee 1038, 114

- fasciatus .......... .... 109

— fasciatus .......... 104, 114

—— hebetatus ......... wee. 11

hebetatus .......... 105, 118

hemipterus...... 108, 105, 106

—— maculiventris .......... 115

MaACULLVENETIS voc eevee 105

—— melancholicus ...... 108, 107

—— NUGerTIMUS oe eevee nee 105

—— nudiventris ............ 114

—— nudiventris ........ 105, 115

obsoletus ...... 108,112,177

—— ochreofasciatus.......... 113

ochreofasciatus .. 104, 105, 109

—— octomatus............... 116

—— octonatus ...... 104, 105, 117

—— polygrammus .......... 107

polygrammMmus......eeee .. 104

—— quadrilineatus .......... 107

quadrilineatus .,.... 108, 115

—— rimoratus ...... 108, 112, 115

SACCRAVE Le cece cece ee 105

——- scutatus..........0.008- 114

SCULALUS . 6. ee eee vee 105

—— scutiger...... eter cece 110

SCULUGED oo eee c ence enes 104

— sellatus ........ ran 108

‘——. sellatus .......... .. 104, 109

—— SCTICCEUS 0... eee eee eee 105

—— sericeus..... see e eee 103, 106

—— signiventris .... 108,111, 115

—— submaculatus

—— submaculatus.... 104,117,170

—— sulcirostris ............ 110

SUICITOSET IS... cee eee eee 104.

Metoposoma .......44+ eeeeee 205

METRIOPHILOIDES .......... 205

barb:curnis .........4 . 205

Metriophilus 0.0... cece ceaes 205

efinitus. ccc ceeccnees 206

MIARUS 0.0... cee cece ees 185

eTCDUS ... cece eee .e. 185

Microcleogonus ....cecceeeces 198

tibialis 2... ee ae seeeeee 198

MICROMIMUS .........0005- 28

Micromimus 1... cere ees .. 21, 387

—— batest ......seeee 28, 29, 30

— continuus........ ce eeee 28

— CONtiNUUS Lo... cece eens 30

—— cribrosus .......... wee. 00

CrUDYOSUS vo eee eee veces 28

—— dehiscens ..........000- 29

—— dehiscens wo. cece cecvves 28

voce ee eee 112.

INDEX.

Page

Micromimus minimus ........ 29

MUNWMUS eee ccccevnces 28

—— higrescens..... beceeeeee 29

——— NUGPESCENS ve 28, 30

—— pumilio oe eee ee. 28, 29

MIcROPENTARTHRUM........ 19

Micropentarthrum. ......00... 20

@NCUM ...... eee ee eee 20

MICROTYCHIUS..........0.5. 193

UCI. cece 198

——errans ...........0.4. .. 198

—— grypus .............. .. 198

—— METIS Lecce cccees .» 198

——— MICH. nec cccaeceaes 198

—— S€L0SUS voce eee .-.. 198

SUMPLEL oe cee ccececes 193

SUlCULUIUS Lod eee eee cee 198

VAIUEGULUS 6 eee eee 193

NANUS ..ee eee eee e cece 5

NGNUus oe ccc cece eee 4, 22

hispidus .............. 6

punctellus ...... eee 5

uniformis ...... tence eee 5

UNUOPMIS . 6... cee. wee. «6

Nesoticus’ cece cece ccc evenes 5

NYSSONOTUS...........00005 20

seriatus.......... cece 20

OOCORYNUS .... eee cece eee 76

COITOSUS. ... eee ee ee eee 76

OOPTERINUS oo... eee ee eee eee 194

geNeopiceus .........06, 194

Opalocetus wi. cece cece cence .. 209

ORTHOGNATHIDES .......... 171

ORTHOGNATHUS ..... . .. 171

UVIdUS vee ccc cn ceees 171

—— subparallelus .......... 171

subparallelus ... 6. cece eee 172

OTIDOCEPHALINA......eee eee 194

OXYPTERUS we. cece ee cee 202

Oxytenopterus .....cereeeees 202

PANTOTELES...... sence eee .. 210

carinicollis .......... .. 210

tenwirostriSs ..eeeseens .. 211

Paracamptus ...ccceceee vecee 1

Parazygops 8-maculata ...... 209

Peltophora ......++6+ cece eee 209

PELTOPHORUS ....eeeee cerns 209

polynutus ..sveceeveeeee 209

PENTARTHRIDES ....eeeeee-e 9

Pentarthrinus .evceseveeee 14, 20

Pace

PENTARTHRUM........ bene 10

Pentarthrum ov cvccecccces 9,78

APUCdle vis evccvcveecces 212

cylindricum ............ 10

—— fulvicorne vi verirecceces 11

—— huttont .aceiccccccceeas 10

PHACE 10... .. cece eee eee 206

—— duplex ........04. oe... 206

quadriguttata .......... 206

Phacegaster .........045 24, 25, 27

MASONS eee cece neces 24

Phlieophagomorphus .....-.. 14,15

angusticolls vs... eee eee 17

Phlocophagus oo... cece cece ene 3l

———— MUUMUS Li cececccuces 29

LC 51

PHRYNOIDES.........0 eee 167

lutets oo... eee eee ee 168

Phyllervthrus. ccc. ccccvecvees 90

PHYLLERYTHRURUS ........ 90

Phyllerythrurus .......50 82, 96

—— annulatus ............6. 95

—— annulatts ........4. cee. OL

—— CANMMZONA decree eee 118

—— circumdatus............ 95

—— ctrcumdatus ........000. 91

—— circumjectus .......... 94

——- circumpectUs vo. ...eee. 91, 98

—— miniatopunctatus........ 93

—— miniatopunctatus........ 91

—— 0rtzabaensts ..... 000s 97

—— ornatuS .......... beens 94

—— OPNATUS voce ee ennes 91, 9

—— pulcherrimus ....eeeees 88

quadrinotatus .......... 92

—— quadrinotatus ......66.. 91

—— rectistriatus ............ 92

—— rectistriatus .......0.. 91, 95

—— sanguinolentus.......... 91

—— sanguinolentus ...... 92, 122

—— sinuatus......... See eae 93

—— SINUATUS. Le eee ree ecns 91, 94

—— xanthozona ............ 96

——. VANLNOZONA 6. e eee eee 91

Phyllotv or oc cccccccvvccnees 184

PSEUDACAMPTUS ........ ns)

Pseudacamptus voi. ceeccvcces 1,2

plurisetosus ............ 3

plurisetosus... ..ecerees . 2

PsEUDANTHONOMUS.......... 189

—— cretaceus ..... 6000. .... 189

—— crinitus............ .... 189

—— hispidus. cc. cccseeceeee 190

——nanus ...... Vee ee wees . 189

PsEUDAPOTREPIDES,...... .. QL

PsEUDAPOTREPUS ........ .. 21

2FF 2

218

Page

Pseudapotrepus macrophthalmus 21

PSEUDEUCOPTUS ....eeeeeee: 27

macrocephalus.......... 27

PSEUDODERELOMUS.....---.- 184

baridiiformis ......+... 184

PSEUDOMOPSIS ........++0005 202

gibbus ......--+e+eeeee 202

laticollis . 1... cece eeeee 202

PsEUDOPENTARTHRUM .... 14,211

Pseudopentarthrum .....+++ 16, 20

angusticolle ...... teases 17

—— angustulum ......++...- 15

angustulum ....e.eeeeee 16

atrUM eee ee eee eee eee 18

brevirostre ......-eeeee 16

—— caudatum .........+606- 211

CaUdatum oo. ccccecvenes 212

—— depressifrons............ 18

depressifrons .... 17,19, 211

foveifrons ......000. e000 19

SOveifrons i.e ccseeeees 211

—— incisuM...........--00e 17

—— limbatum .............. 18

lineifrons ..........006. 15

—— mexicanum .........4.4. 15

—— phloeophagoides ........ 17

—— phlwophagoides.... 16, 18, 212

—— planifrons ............65 16

—— subcylindricum ........ 17

——— CEN. creer reer eeecnee 19

Rhamphocolus ..ecceeceeeeee 73

RHINA occ eee eee eee eee 176

7 176

——— Aft vnc ccccnccces 176

—— barbirostris ........+004. 176

COSEANIS Woe ccc ee cues 176, 177

CDIIOSA. vec cee ccc en tenes 176

Sfrontalis wecceeccceeees 175

MUP crn eccccnnnes 176

SCrULALOP vec ce eee e eens 176

RHINANISUS 2... cece ee ees 10

PRRINANGUE vce eee eens 11, 12

SUlvicornts oo. cece cceeene 11

—— hirtipennis ............ ll

peruanus .......... wee. 11

pilicauda .............. 13

—— pilicauda ....eecseceves 11

—— planatus ...........05. 12

—— planatus ....eecseaee 11,138

—— tenuiculus.............. 13

Eenwiculus .... ce cee cae 11

—— ventralis ...........0.. 12

ventralis ...scvceecas 11,18

BANE . ccc ve cccvceveees 171

INDEX.

Page

Rhizophagus bipustulatus.... 68,74

RHODOBANUS ......ee eee eee 119

Rhodobenus ........ 79, 117, 118,

153, 157

—— adspersus .....6....005- 136

adspersus...... 120, 133, 184,

135, 188, 189, 140

—— albopunctatus .......... 138

albopunctatus ..... wees. 189

alboscutellatus .......05. 137

—— andrew ............ .... 184

ANATCE cic ce ca ce ce enees 133

ATCUALUS es eeeeeeeeee 134

AVCUALUS ieee cece neces 121

——— HUCTUS ore eeeeee 149, 151

—— auriculatus ............ 127

— auriculatus .... 118, 120, 128

bicinctus .........0eee 145

DicinctUS vs caveceeseees 147

Dipunctatus 6... cee eaes 143

—— bisignatus..........44.. 1438

biundulatus ............ 128

brevirostris ............ 133

—— brewirostris oo... ee eee 134

cariniventYis..........+. 144

—— cariniventris ........ 121, 150

centromaculatus 129, 130, 131

CINCtUS 1... ee ee eee eee 141

CINCLUS Lecce eee 120, 145

— , var, funerarius .... 141

—— — , var. obliquus ...... 141

cinereiventris .......... 138

confusus ......eee eee ee 129

corniculatus .... 120, 149, 150

CYASSIPES 2... eee eee e ees 131

CYASSUPES va veer wees 182

—— cylindricollis .......... 132

deltoides ..........000- 146

deltotdes .......4ae 145, 150

—— dentifer............004. 126

Aentifer vce vcvcvcvvccues 120

—— 1]2-maculatis........000. 149

CLEGANS vs eceseceees 149, 150

Semoralis ...... 149, 150, 151

—— fortirostris ............ 127

Sortirostris ........ 118, 128

—— JP APMCu8 ve vsecceeccues 150

—— guttatus ...........-.. 140

guttatuser.ceccseces 120, 139

— hematidus.......... 142, 148

—— implicatus ....... 666 146, 150

——— UMPTESSUS oer eee eeeee 136

—— interpunctatus .......... 150

—— interruptus ............ 125

—— interruptus ........ 126, 128

TeDASt cece cee veees 149, 151

Page

Rhodobzenus leucographus.... 141

lewcographus....ccceeees 142

—— maculifer .............. 129

—— macultfer .......64. 117, 120,

180, 131, 145

—— maculipes .............. 147

——— MELANUTUS 66. eevee 124, 181

——mesomelas ............ 121

MESOMEIAS weve veveecees 119

—— nawradi.. ...,..00.... 123

—— NAW AML. veer cvvees 125, 127

—— nebulosus .............. 18

—— nigrolineatus .......... 140

—— nigrolineatus.... 188, 138, 139

—— nigropictus ............ 146

—— NigropictUs ..cssccveeee 121

—— nigrosignatus .......... 132

NUGVOSIGNATUS ...cevveee 183

OlivaceuS ...... eee eee 122

—— O1iVACEUB Ld eres eesceees 180

pantherinus ............ 147

PANtherinus voevscceeees 148

Plnguis ..... eee eee eee 129

PUNGUIS co. ceeeeeee 125, 136

plicatus.........-. eee ee 122

placatus .. ces ceceees 126, 128

—— pulchellus.............. 148

—— pulchellus ......000 121, 150

— , var. niger ......., 148

puncticollis ......6. 136, 137

Pustulatus vi vsccevevsees 137

—— —, var. puncticollis.... 137

pustulosus........0+.04- 137

—— pustulosus.. 120,129, 136, 138,

139, 140, 160

—— quadripunctatus .... 124,181

—— quinquemaculatus........ 141

—— 5-punctatus ........ 149, 151

—— rubicundus ............ 151

—— rubrovittatus .......... 142

—— saginatus .............. 125

—— sanguineus ............ 142

—— sanguineus ........ 120, 148

—— sanguinicollis...... 0045. 151

—— SAUCIUS vee ee eee cece 150

—— sexguttatus ............ 180

—— stigmaticus ............ 123

stigmaticus .....00 120, 122,

124, 130

—— subcristatus ............ 124

subcristatus ........ 120, 180

—— suturellus ... 6. cc ceeeeee 140

tenuiscapus ...+....00 128

—— tessellatus ............ 125

—— thoracicus 6.6.0 ec eeceeee 151

Page

Rhodobenus 13-punctatus .... 120,

121, 148, 147, 148, 150

— y Var. ductus ........ 151

.—— — , var. corniculatus.... 150

— — , var. 12-maculatus.. 148,

149

—— ——., var. elegans........ 150

—— ——, var. femoralis...... 151

—— ——, var. graphicus...... 150

— , var. emmaculatus .. 151

—— ——,, var. mplicatus .... 150

— , var. lebast ........ 151

—— ——., var. metropolitanus 148,

149

—_ ——,, var. nigripennis .... 151

—_ ——,, var. 5-punctatus.... 151

—— ——,, var. thoracicus .... 151

—— ——,, var. triangularis.... 151

—— ——,, var. vittatipennis .. 150

—— unidentatus .......... .. 189

—— varieguttatus .......... 187

— varieguttatus .. 119,158, 140

— venustus .......... 150,151

—— verepacis ...... veceeeee 133

—— v-nigrum .............. 181

—— V-NUGPUM vw eaecvecrceees 182

—— ypsilon ................ 144

—— YPStlON ov verveeerees .» 145

Rhopalomesites ......4+.60005 7

Rhyncholus latinasus.......... 40

Rhynchophorides ...... ene 79

RHYNCHOPHORINA .........-- 79

RHYNCHOPHORUS.........-++ 81

Rhynchophorus .......00++- 79, 82

—— borassi..... Leen eens 81,177

—— cicatricosus .....6.65- .. 168

—— oruentatus .....se sees 81

Mepressus vee esverecvcee 81

—— lanuginosus .......+.--. 81

UMeGris 6... cc eevee eeees 169

—— norius ...... eee ceca 80

—— palmarum.............. 81

——palmarum ...... 79, 80, 125

—— politus .......44.. veveee “9

— sanguinolentus .......... 91

—— 13-punctatus .......... 149

BMMETMANNE ... ce reves 81

RHYNCOLIDES .........-6-4- 73

Bhyncolini... 60. 0c ccc cae 73

RHYNCOLUS 26.0. ee eee eee 73

Rhyneolus’ oo... 0. ae. 22, 37,7

ra 73

—— brevis...... cee e eee eees 76

—— chiriquensis............ 74

Chiriquensts .... 0. es 78, 75

INDEX.

Page

Ehyncolus chloropus.......... 73

Corticalis wo. ccc eee ee 31

cylindrirostris .......... 39

— elumbis................ 73

—— elumbis ..... 0.000.000... 74

Susiformis.......... .. 73,74

lauri so... eee eee eee 75

Te a 73

—— hynarius ...cccc cee eee, 39

montivagus .........06. 74

——_ montivagus ...ceeceecee 73

OTYEOE cece cence nee 75

protractus ... cee. ec. 22,73

——_ quercicoluS oe. ev ceeeaee 78

tenuwrostris oo... cee ee, . 25

Rhyncophorus asperulus ...... 152

CarbONartUs ...eceeeres 105

RAYSSOMATUS .......... .... 198

NUGEYTUMNUS oe veces .. 198

A 199

SEMICOSEATUS . 6. cece cena 199

— sexcostatus ............ 198

SCYPHOPHORUS ........00. 152

—— acupunctatus .......... 152

Anthracinus ...e..eeeees 152

interstitials 6.6... cece eee 152

robusttor ...... see eeeee 152

YUCCE vee vceeveraees 152

SIBINIA .. ee. eee eee eee J... 191

Sibinia ....05e. Sete eees 189, 193

albidula ......0...000- 192

——- americand....+..+.. 192,198

ASPCTSA wees eee cece eee 193

dissipata .......... ... 192

MELINA ov ceveevevccvers 192

—— pulcherrima............ 191

—— pulcherrtma vere eecerees 192

TOTUNAALE vive evervcoers 191

TUDESCENS .osveeeees 192, 193

—— solariella .........0000- 192

tessellata ....cceereeves 191

SIPALIDES..... eee eee eee eens 172

Stpalides .s....e0s eeeeeee 171

UPAIS ce vececvcecccvcves 172

SIPALINA ..eeeeeeee see eee 171

Sipalus .veveeeeves Scene eee 172

bracteolatuS .....ee cece 174

SEPIALUS oo cee eee ve eeee 172

subulatus 0... .0 cree eee 173

Sitophilus ...... cee ee eeeee 168

—— DANONE ocr eee ne eee 170

GVANATUUS oo cee eens woe. 168

———_ WneArl8 oo c eee eee 169

OF YER crv vevens Ae 169

219

Page

Sttophilus remotepunctatus . 168, 169

SELULOSUS 6. eee eee eee 169

stigmaticollis ........4% 123

SMICRONYX .....-...-00000. 188

SMIUCVONYL voce eee eee ce ees 189

FUulOUs Lee eee 183

—— latisquamis ............ 185

SUUMCEUS oe eee cee eee 183

LECTUS Lee eee eee ee 183

Sphenognathus ........0..-04% 171

SPREPacuS oo... cece cece eee 5,6

SPHENOPHORINA ............ 82

SPHENOPHORUS ............ 152

Sphenophorus.. 79, 90, 108, 153, 157

adspersus .......... 186, 140

—— equalis ........ 153, 157, 174

AH ANCEPS eee eee eee 149

angustUs ...........04. 167

ANGUSTUS eee eee eee 155

atervimus .............. 166

AUITIMNUS oo... ee eee 1538, 157

baridvoides oo. a eee 164

bicolor oo... eee eee ». 165

—— bifasciatus........4 we... 85

brunneipennts ........4. 166

CHMIZONA ee eeveeceaeee 113

CULLOSUS Loe ee ee eee 1638

carbonarwus 6... 6... e. 105

—— Carl0suS............ , 158

CATIOSUS 6. ee cea 154

cicatistriatus .......... 159

cicatistriatus ...... 164, 161

cicatripennis ...... 159, 167

1 141

— , var. rubellus ...... 141

cinnamomeus ...... 103, 177

COACLOTUM . 2... ee eee 160, 161

coesifrons ...........08. 161

—— c@sifrons .......... 154, 162

COSEALUS Voce e cece eens 101

COSLUIPENNIS. 6. ee eee eeeee 157

ACRUANI oo cca e ee ce cee : 100

eltctOsus 6. eee cece eee 145

destructor ..... eee 158, 163

—— dimidiatipennis ........ 106

distichlidis ....... . 153

—— ENSITOSTIUS vee eecee 103

——— fanr Qt veccervecre evens 83

fasClatUS Lo. cree eereae 109

——— lOXWOSUS eee e revere . 158

Puliginosus. occ... ee reves 84

glabripes vi c.eeeeee 164, 165

GTUMUNIS veceeeecernees 164

—— JUL. cere eceuee 140

—— hebetatus .....ecreveee 116

—— hemipterus ..... vee 103

220

Page

Sphenophorus hoegbergi...... 160

~—— hoeghergi ......2.05 154, 161

—— tmplicatus...cecvcceccee 149

tmpressicollis . ss... eae 164

PMU yo. eee nese’ 166

——— TMNUB ore eeccceceees 155, 167

—— incurrens ............+. 164

MCUTTENS 6. cece eee 158, 155

—-— , var. monilis ...... 155

—— 17 elitU8 eee eee 159

—— latiscapus .......ceeeeee 117

Leba8tt eee ee cae cee eee 149

——— lepr08us8.. cc cceccceces 116

leucographus......6.0+05 141

—— lineatus .............. 166

—— limeatu8 oo. ce ccccccccces 155

—— lutulentus.............. 162

—— lutulentus 0.0... .eeceees 154

—— maculifer o.ccccecceceee 129

——— MALNS vee cececcceccces 1538

—— melancholicus .......005 103

—— MElANUTUS eee eee eee 1381

—— memuonius ............ 168

—— memnonius ........ 155, 164

—— monilts ... ccc ceeee 164, 165

—— multipunctatus ........ 158

—— multipunctatus ..... 6000. 154

—— mundus..............0. 156

—— mundus oo... cece. 153, 157

——— NAW AT eee eeeccccees 123

—— oblitis oes 162

—— obsoletus .......05. 108, 177

——— ochreuS......... cece eee 157

—— OCRT CUS vee ccccncceenas 154

—— octocostatus ............ 157

octocostatus ...iceseeeee 158

OVIZADACNSIS oo ec eeeeeee . 97

Per fOratus...cccveee oo. 83

—— pheeniciensis .........4.. 160

PUCOUS. Love cecceecevvecs 156

——— UCEUB. cc racececaceces 157

Plactdus...eeveseceseces 160

polygrammus ....eeaee 107

——- pontederi@........44 153, 165

PTOCETUS. coc c ccc ceences 84

—— pulchellus ........4. 148, 149

—— pulcherrimus ......64. 82, 88

—— pustulosus oe. 60. 119, 137

—— quadrivittatus .......... 165

quadrivittatus ...... 155, 166

reticulaticollis ...-...... 160

reticulaticollis .. 153,154, 161

PUNOTALUS 66. cece eens 103

TUSTICUS ve. ee Se eee ste ee ae 153

SANGUINEUS ........ 142, 146

—, var. lineatocollis.... 142

INDEX.

Page

Sphenophorus sanguinolentus .. 91

—— seulptilis .......... 158, 163

SETUCCUS Cee cece eens 105

—— sierrakowskyt ........ 82,87

—— signaticollis ............ 166

—— SIGNtVeENtTS ....s eee eae 103

—— simpler ..... 00000, 163, 164

SOUAUT occ ee cee eeeaes 161

—— spinol@ ..... ccc cece 82, 84

——_ IGMA 6. eee cccccenes 141

stigmaticus ....... sees 128

—— striatipennis ..........6. 157

—— striatoforatus .......... 83

—— - SUDIAVIS. LL eee eenee 163

—— submaculatus .......... 112

—— sulcifrons............4- 162

— sulcifrons ...... 158, 154, 168

—— FErTeusS Loe eee cence 162

terricola ......... 0 ee. 161

OT ar 154

— tibialis ........ babacees 82

—— Ueto cece cc eeaee 159

—— 18-punctatus............ 149

UVANATOSHIIS . 6c eee eee 85

—— validus ..cccceceeeaes 82, 84

vartabilis ..... cee eens 149

_—— » var. tmplicatus .... 149

— » var. lebastt ........ 149

—— VENALUS oo eee ccccaee 160

VESTUUS WL. cece ec aeceee 160

—— vomerinus.............. 164

—— vomerinus .......... 155, 163

1 or 153

Stenancylus ..eceecccccues 73, 75

COlOMBOL =. eee ecceees 78, 74

STENOMIMUS...... oh taccees 30

Stenomimus ........ 22, 31, 37, 39

armatuS ..........000. 82

AYMATUS Leese cececeees 81

dirutus .. 0... eee. cee 83

UrUtUS voce veccceeceee 31

—— dubius ....ccceeeeceen, 32

—— filirostris .............. 32

—— filtrostrts w..cceeeeee 31, 33

0 Ln 30, 31, 34, 35

guatemalensis .......... (384

—— guatemalensis ........44 31

—— ovaticollis.............. 84

ovaticollts ...cceeeeceues 31

pallidus ..c.cseess 31, 34, 35

POltUs Le eevseccccccees 82

quichensis........ cece 36

QUIChENSS . oe. cece 31, 32

rhyrcoloides......... oe. 80

— rhyncoloides ......44.. 32, 36

——rufipes ............00,, 36

Page

Stenomimus rufipes ........ 31, 32

rugirostris...... sae oa oes 36

TUGWOSEIIS. oo vec nee 31, 82

VeTePaCiS 6... ee eee eee 35

VETEPACS .....4.. 31, 382, 33

wollastoni..........0065 33

wollastont ........ see. ol, 34

STENOMMATUS .....-. eee ecu 9

—fryi wo... ee eee eee eee 9

sulcifrons ..........006- 9

Stenoscelis vo... cece ccccccees 76

STENOTRUPIS ........eeee0e 13

Stenotrupts .sccececeveceees 14

ACICUA Lice eee ce neces 14

CYASSUTONS . oo eee cee eens 13

— evilis........ Cece eens 13

—— ovaticeps ........eeeee. 14

TACHYGONINA 2,-0.0 seeeeee 210

TACHYGONUS ....eceeeeeeee 210

—— quadrisignatus.......... 210

SEMATUSUS Vi vecceveveces 210

TELYS woe ce cece cece cece eee 180

—— }isinuatus.............. 180

TERIRES ..... ec cece cee cece 183

—— 0l08US vc ericceecceees 184

plurisetosus ............ 1838

Tetratemnus oo. .ceccececnves 21

Thalattodora insignis ........ 10

Theognete .........4. eevee eee 10

THYSANOCNEMIS ......-.000. 190

ThYSANOCNENWS 6. .cecsceneees 191

Brevis... cece cece ee ees ~. 19l

exclamationis .......... 190

——— MIDOY ..... eee eee eee 191

PUSIUUS vee cccceeeevene 191

—— suturalts .ecccccccccees 191

TOMOLIPS ....c cece cee eee aee 78

Tomolips .....s00e, 9, 22, 73, 77

ASPEVALUS Ci secccceveces 78

bicalearatus ..........45 78

—— quercicola...........0. 78

TOXORRHINUS ...ee. eee eeee 170

banonl ......... eee eee 170

Trypetides vececcccvccseccees 4

TRYPRTINA . eee cece eee eeeee 4

Trypetint ov ccvccvccee nC:

TYCHIINA ... cece eee e cee e eee 190

0 1 .. 193

CTTANS viccscccsecee .». 193

GTYPUS veeeevee be eeccee 198

SELOSUS ceevecescseveeee 193

TYLODERMA ........ eee eee 204.

—— eneotinctum .......... 204

TYRANNION .oecece eee eaves 206