406 ANTHRIBIDJE. 



[LeConte. 



broadly rounded, sinuate near the hind angles, which are acute ; disc 

 strongly punctured, but the punctures are concealed by the dense pubes- 

 cence. Elytra not wider than the base of the prothorax, and about twice 

 as long as it ; striie narrow, rather finely punctured. Legs and antennas 

 yellowish-brown, club darker. Length 3.5 mm.; .14 inch. 



Colorado, six specimens ; Prof. F. H. Snow. The body is elongate as in 

 B- variegahiH ; the pubescence is nearly uniform, but there are, sometimes, 

 three paler gray vittae on the prothorax, and a bi'oad one occupying the 5th 

 and 6th interspaces of the elytra. The side margin produced by the flex- 

 ure of the basal ridge extends nearly one-half of the length of the pro- 

 thorax. 



3. B. limbatus Say, ibid, v, 250 (Anthrlhm) ; ed. Lee, ii, 314. 

 At'antic States, varies in size from 2.2-3.1 mm.; .09-.12 inch. 



4. B. plumbeus, n. sp. 



Ob'.ong, c^-liadrical, b'ack, denselj^ clothed with ciuerous pubescence, not 

 mottled; striae of elytra fine, punctured; antennae and legs testaceous, club 

 a;ul thighs darker. Length 3.2 mm., .13 inch. 



^lidd'e States. Of the same form as B. llmbaiiis, but a little narrower; 

 the pubescence is finer, of a uniform gray color. The posterior ridge ex- 

 tends on'y one-third the length of the prothorax at the sides, while in B. 

 linibatui it goes fully as far as the middle. 



5. B. vestitus, n. sp. 



Oblong-cylindrical, black, densely clothed with coarser brownish-yellow 

 pubescence, scarcely mottled striiB of elytra punctured, interspaces flat; an- 

 tenna and legs testaceous. Length 2 mm. ; .08 inch. 



Louisiana; Mr. Ulke. Smaller- and narrower than 5. limbatus, dense'}' 

 covered in the same manner with coarse, brownish-yellow pubescence; the 

 hind angles of the prothorax are acute; but the transverse ridge scarcely ex- 

 tends a'ong the sides in front of the base. 



6. B. tomentosus Say, Journ. Ac. Nat. Sc. Phila. v. 251 {Anthnhux); ed. 

 Lee, ii, 315. Brachytarsus brevis Fahraeus, Sch. Cure, v, 168. 



Middle and Western States; on Ambrosia (C. V. Riley). The ridge ex- 

 tends from the hind angles about one-third the length rf the prothorax. 



7. B. variegatus Say, Journ. Ac. Nat. Sc. Phila. v, 251 (Anthribut); 

 ed. Lee, ii, 315; Brachytarsus sticticus GyW., Sch. Cure, i, 172. 



Atlantic States; Say notes its occurrence in the smut of wheat. A species 

 of rather elongate form, and easily known by the basal and postmedial 

 fuscous spots near the suture; varieties however occur in which these spots 

 are obsolete, and the specimens are then to be distinguished from A.limba- 

 tui by the narrower form, and more elongate prothorax. Such specimens 

 probably represent B. obsoletus Fahraeus, Sch. Cure, v, 167. The ridge ex- 

 tends from the base along the sides for about one-half the length. 

 ANTHRIBULUS n. g. 



The small species upon which I have founded this genus is of more 

 elongate form than Brachytarsus, but agrees with it in the trapezoidal 



