294 CTJRCTJLIONID^]. [LeConte. 



nearly flat, and coarsely punctured In this species, I have thought it better 

 to separate it from B. subooalis and tmnsversuson account of the narrower 

 form, which approaches that of B. cerea. The prolhorax is however more 

 regularly rounded on the sides, and is fully as long as wide; the punctures 

 are coarse but not dense. The elytral striae are less deep than usual and 

 the punctures of the interspaces are well marked; these punctures are finer 

 and more distant in the specimen from Oregon, than in those from Califor- 

 nia. The latter being better preserved show tine but distinct whi chairs 

 proceeding from each interstitial punc'ure. The thoracic smooth dorsal 

 line is very distinct in the Californian, but almost obsolete in the Oregon 

 specimen. A larger series of specimens will show that these differences 

 are individual rather than specific. Length 3 mm. ; .12 inch. 



14. B. jgmcra_Lec.), Pac. R.R. Expl. and Surv. Ins. 58, (Barfdius') ; 

 Pr. Ac. Nat. Sc. Phila. 1868, 362. 



San Francisco, Cal., three specimens. Nearly related to B. sparsa, and 

 of the same narrow form. The prothorax is however more densely punc- 

 tured, without dorsal smooth line. The punctures of the interspaces of 

 the elytra are veiy small, and upon the third are somewhat confused. Pro- 

 sternum between the coxae not very wide, slightly longitudinally concave, 

 but scarcely subsulcate. Length 3.5 mm.; .14 inch. 



15. B. pruinosa, n. sp. 



Rather robust, oval-subquadrate, black, pruinose with small narrow 

 white scales, some of which are hair-like. Head naked, nearly smooth; 

 beak shorter than prothorax, stout, curved, punctured, pubescent, constrict- 

 ed at base. Prothorax scarcely longer than wide, gradually narrowed from 

 the base for two-thirds the length, then more rapidly to the tip, which is 

 constricted on the sides; disc densely but not coarsely punctured, scutellar 

 lobe larger than usual, emarginate; dorsal line indistinct, or wanting. Ely- 

 tra gradually a little wider than the prothorax, striae deep, interspaces flat, 

 wide, densely punctured. Beneath densely punctured. Front coxae mod- 

 erately separated, prosternum slightly concave, not sulcate. Club of an- 

 tennae nearly round, with first joint slightly pubescent, but shining. Length 

 4.5 mm.; .18 inch. 



Texas, Belfrage, not rare. The third joint of the tarsi is broader than 

 usual, and the claws larger, thus showing a transition towards Onychobaris, 

 but the club of the antennae is of the present genus. 



ONYOHOBAKIS n. g. 



Under this name I would group those species in which the club of the 

 antenna? is more oval, entirely sensitive and pubescent, the first joint form- 

 ing less than one-half the mass; the second joint of the funicle not longer 

 than the third; and the claws divergent and larger than usual. 

 ' In other respects this genr.s agrees with Baris, and the species may be 

 classified similarly, though the front cjxre are usually much more widely 

 separated than in Baris. 



