294 CUKOULIONID^. [LeConte. 



nearly flat, and coarsely punclured in this species, I have thought it better 

 to separate it from B. subocalu and tran»ver»UH on account of the narrower • 

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

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

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

 the punctures of the interspaces are vvell marked; tliese punctures are finer 

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

 nia. The later being better preserved show line but distinct w hi chairs 

 ])roceeding from each intei-stitial punc'vire. 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. macra (Lee), Pac. R.R. Expl. and Surv. Ins. 58, (Bdridim); 

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



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

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

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

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

 sternum between the coxjiB not ver}' wide, slightly longitudinally concave, 

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



15. B. pruinosa, n. sp. 



Rather ix>bust, oval-subquadrate, black, pruinose with small narrow- 

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

 beak shorter than prothorax, stout, curvetl. 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, wl ich 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 tiian the prothorax, striaj deep, in ersi>aces flat, 

 wide, densely punctured. Beneath densely punctured. Front coxa; mod- 

 erately separated, prosternum slightly coucave, not sulca'e. Club of an- 

 tennae nearly round, with first joint slightly pubescent, but shining. L( ngth 

 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 Onychoharis, 

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



ONYCHOBARIS n. g. 



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

 antennaj is more oval, en irelj'^ 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 resi)eets this genus agrees with B<iris, and the species maybe 

 classified simil-arly, though the front coxse are usually much m.)re widely 

 seimrated than in Barn. 



