eyes less prominent, front wider, head broadly rounded behind the eyes and more convex; middle tibiæ straight; external apical tooth of mandibles very prominent.

Middle, Southern, and Western States to Texas. Very variable in color, but with the legs usually yellow, rarely varied with fuscous.

3. Eu. collaris Gyll., Sch. Curc. v, 341; Anthribus coll., Fabr. Syst. El. ii, 410 Rhynchites coll., Oliv. Ins. 81, 28, tab. 2, f. 40; Rhinosimus coll., Latr. Hist. Nat. Cr. et Ins. xi, 27; Rhynchites ruficollis Germ., Ins. Nov. 188.

Middle, Southern, and Western States, to Texas. Equally variable in color, but the legs are almost always black, rarely varied with testaceous. Of twelve specimens before me all seem to be, and differ from those of the preceding species only by having the head behind the eyes cylindrical and not narrowed. It may possibly be a dimorphous form of Eu. angustatus.

4. Eu. puncticeps, n. sp.

Of the same form as collaris, testaceous clothed with erect hairs. Beak rather stouter less deeply sculptured, front obsoletely channeled, head coarsely and sparsely punctured, cylindrical not narrowed behind. Prothorax coarsely punctured, feebly channeled. Elytra with striæ composed of approximate punctures, interspaces wide flat, each with a row of very small distant punctures. Antennæ extending to the base of prothorax, stouter than in the other species. Length 3.6 mm's; .15 inch.

Illinois, Mr. B. D. Walsh; Georgia. I have seen but two of this species; it is easily recognized by the stouter antennæ, and more uniformly sculptured beak, which is free from the impressions and lines seen in the two preceding species.

5. Eu. sulcifrons Gyll., Sch. Curc. v, 343.

I refer to this species, a ♂ from Texas, sent by Mr. Belfrage. It is of exactly the same form and sculpture as Eu. angustatus, but the eyes are less prominent, more as in the of that species, and there is a fine but distinct frontal channel; the head is gradually and distinctly narrowed behind the eyes. The color is testaceous, with a lateral blackish vitta on the elytra gradually becoming broader behind; an extension of this dark color would give the appearance mentioned by Gyllenhal, in whose specimen the elytra were black with a blue reflexion, and pale piceous towards the base.

1. R. bicolor Herbst, Käfer, vii, 131, tab. 104, f. 6; Oliv., Ins. 81, 23, tab. 2, f. 31, Gyll., Sch. Curc. i, 212; Attelabus bic. Fabr., Ent. Syst. i, 2, 388; Syst. El. ii, 422; Curculio bic., Fabr. locis variis.

An abundant species found on wild roses from the Atlantic to the Pacific coast. The head as far as the eyes, the prothorax and elytra are red in the specimens from the eastern part of the continent. I have indicated in my collection the following races:

a. Head entirely black. Oregon and California.

3. Head, stem of antennæ and legs red. Colorado.

7. Red, except the club of the antennæ, and sides of metathorax, which are dark. Colorado.

The beak of the is shorter and stouter than in ♂, but I see no other sexual difference.

2. R. æneus Boh., Bull. Mosc. vi, 22; Sch. Curc. i, 215; Fahraeus Sch. Curc. v, 323.

Middle, Southern, and Western States to Colorado. A variety occurs, in which the elytra are testaceous. I observe no sexual differences in the specimens before me.

3. R. mexicanus Gyll., Sch. Curc. i, 227; Chevr., Col. Mex. 108. I refer to this species one specimen from Arizona, very similar to R. hirtus, but of a blue color; the beak is rather shorter and broader, and slightly dilated at tip; the two striæ towards the base are equally apparent, and the front is similarly channeled. The head and prothorax are somewhat less coarsely punctured, and the elytral striæ are more evident, and composed of rather larger punctures. The differences, except in color and form of beak, are not obvious; the former may be variation, and the latter is, perhaps, sexual.

4. R. hirtus Oliv., Ent. 81, 26, tab. 2, f. 36; Gyll., Sch. Curc. i, 231, Attelabus hirtus Fabr., Syst. El. ii, 421.

Carolina to Florida.

5. R. glastinus Lec., Pacific R.R. Expl. and Surv., Insects, 52. San Francisco, California. Remarkably different from our other species

by the broader, shorter, and more deeply sculptured beak. No sexual differences observed.

6. R. planifrons n. sp.

Moderately elongate, dark blue, clothed with long erect hair. Beak slender, as long as the head and prothorax, sparsely coarsely punctured, striate in front of the antennæ, flattened behind them, and margined at the sides. Head coarsely punctured, frontal channel short, deep. Prothorax slightly narrowed in front, not rounded on the sides, sparsely punctured, feebly channeled. Elytra one-half wider than the prothorax, impressed behind the base, striæ composed of very large distant punctures, interspaces rather wide, each with a row of small but deep punctures. Length 3.5 mm's; .14 inch.

Cape San Lucas, Mr. Xántus. I have seen but one specimen. It is nearly of the same form as R. mexicanus but a little less robust.

7. R. aureus, n. sp.

Elongate, glabrous, bright coppery golden. Beak rather slender, punctured; head coarsely and deeply punctured, with a narrow smooth frontal space which is channeled. Antennæ slender, testaceous with blackish club. Prothorax longer than wide, sides very slightly rounded, coarsely and deeply punctured. Elytra one-third wider than prothorax, impressed behind the base, striæ composed of deep close-set punctures, interspaces narrow, sparsely rugose. Legs bright testaceous yellow. Length 2.3 mm's; .09 inch.

Santa Barbara, California. Abundant, Mr. G. R. Crotch. The beak seems a little shorter and broader in some specimens, which are probably ; otherwise I perceive no sexual differences.

8. R. fossifrons, n. sp.

Elongate, glabrous, bronzed; legs dark. Beak slender, as long as the head and prothorax, cylindrical, shining, sparsely punctured; head coarsely but not densely punctured, with a deep elongate fovea on the front. Prothorax strongly punctured, not narrowed in front, very slightly rounded on the sides. Elytra one-third wider than the prothorax, impressed behind the base, striæ composed of deep approximate punctures, interspaces narrow, rugose. Length 2.3 mm's; .09 inch.

One specimen, Mariposa; Dr. A. Thevenet. Of the same form and size as the preceding, but differing by thre beak, frontal fovea, more rugose elytra and dark legs.

9. R. cyanellus, n. sp.

Prothorax

Of the same form, size and sculpture as the two preceding, but of a dark blackish blue color. Beak slender somewhat flattened, strongly punctured ; head strongly and sparsely punctured, without frontal fovea. and elytra as in R. fossifrons. Length 2.1 mm's; .085 inch. Massachusetts and Illinois; four specimens. The subbasal impression of the elytra is less distinct than in the next species, and the general form more elongated.

10. R. æratus Say, Curc. 5; ed. Lec. i, 263. Gyll., Sch. Curc. i, 216. Middle and Western States. Closely related to the preceding, but the color is coppery, and the head is finely granulated, and less deeply punctured; the beak is also longer and more slender. I have one specimen of a dark blue color, resembling R. cyanellus, but with the head faintly punctured.

Sub-family II. PTEROCOLIDE.

A single species constitutes this sub-family. On account of the anomalous characters its place in the series of Rhynchophora has been changed from time to time, without very satisfactory results. The latest authority, Lacordaire, deceived by the broad form of body, and ascending side pieces of the mesothorax placed it in the neighborhood of Ceutorhynchus. A study of the mouth organs, as well as the antennæ, shows that it is allied to Auletes and Rhynchites, while the other differences require it to be received as a very peculiar and distinct type.

It differs from the genuine Rhynchitidæ by the antennæ inserted much nearer the eyes, which are suddenly but not deeply emarginate in front. The side margin of the prothorax is acute and well defined, and the under surface, with the anterior part of the mesothorax, is excavated, forming a large cavity for the reception of the front and middle legs. The elytra are sculptured with wide shallow grooves, which are confusedly punctured; the epipleuræ are distinct; the tips are widely dehiscent and separately rounded, exposing parts of three dorsal segments, all corneous and densely punctured. Front and middle coxæ small, rounded, widely separated, not prominent; posterior coxæ separated, transverse, intercoxal process broad. Tibia with two distinct apical spurs, tarsi dilated, claws appendiculate. Ventral segments short; pygidium less convex in the ♂, and strongly inflexed. Side pieces of mesosternum transverse, solid, ascending between the prothorax and elytra. Side pieces of metasternum wide.

PTEROCOLUS Sch.

1. P. ovatus Gyll., Sch. Curc. i, 240; Labram & Imhoff, Curc. 70; Attelabus ovatus Fabr., Syst. El. ii, 426; Oliv. Ent. 81, 11, tab. 1, f. 13; Apotomus ovatus Kirby, Fauna Bor. Am. iv, 205.

Michigan and Massachusetts to Florida. Easily known by its robust form and beautiful blue color.

Family III. ATTELABIDÆ.

Mentum very transverse, short, trilobed, supported on a very large quadrate gular peduncle; ligula and palpi small.

Maxillæ exposed, lobes small, palpi rigid, 4-jointed.

Mandibles flat, pincer-shaped, rather stout, toothed on the inner side. Antennæ inserted rather on the upper surface than at the sides, straight, 11-jointed; first and second joints stouter, 9-11 larger forming a loose elongate club covered with sensitive surface.

PROC. AMER. PHILOS. soc. xv. 96. B

Head prominent, not deflexed, eyes oval, finely granulated, not prominent; beak short and stout, thicker at the end beyond the insertion of the antennæ; antennal grooves short and broad.

Prothorax truncate before and behind, convex; prosternal sutures not distinct, coxal cavities confluent, rounded.

Mesosternum flat, declivous, triangular, pointed behind; side pieces short transverse, diagonally divided, epimera not attaining the coxæ. Metasternum short, side pieces wide.

Elytra not covering the pygidium, separately rounded at tip; epipleuræ narrow but distinct; inner surface without lateral fold.

Abdomen with five short ventral segments separated by deeply impressed straight sutures, intercoxal process acute; fifth at the middle very short, being compressed by the inflexion of the pygidium; side margin not acute nor extended upwards. Dorsal segments convex, almost corneous. Pygidium small corneous, upper margin with a large deep marginal groove.

Anterior coxæ conical, prominent, contiguous; middle coxæ somewhat transverse, and a little prominent; hind coxæ transverse, nearly contigu

ous.

Legs stout, tibiæ serrate on the inner side, armed at the tip with two strong hooks, which represent the spurs in the two preceding families; tarsi dilated, brush-like beneath; third joint deeply bilobed; claws connate at base.

A family containing but few genera, with less than 200 species, distributed mostly in the tropics.

ATTELABUS Linn.

The species of this genus which occur in our fauna, are divided by Mr. Jekel (Ins. Saundersiana ii, 186), into three groups:

I. Glabrous; front thighs less thick, not toothed :
Blue black; prothorax, neck, elytra and abdomen red...
II. Glabrous, front femora thick, strongly toothed (in):
Red; legs usually black or dark.....
Black, elytra partly red.

Apical angles of beak not prominent....

HOMEOLABUS. 1. analis.

SYNOLA BUS. 2. nigripes.

...3. bipustulatus. 4. genalis. 5. rhois.

III. Pubescent, front femora not toothed, HIMATOLABUS.

1. A. analis Illiger., Schneider's Mag. v, 616; Gyll., Sch. Curc. i, 199; Harris, Ins. Inj. Veg. 58; A. similis Kirby, Fauna Bor. Am. iv, 204.

♂. Ventral segments with two rows of acute tubercles; under surface

of mouth flat.

9. Ventral segments not tuberculate; under surface of mouth with two small acute teeth projecting downwards.

Abundant in the Atlantic States. With a large series of specimens before me, I cannot agree with Mr. Jekel, in separating A. similis as distinct on account of the darker color, and less lustrous elytra.