LeConte.] BAKINI. 309 



interspaces. In some specimens tlio elytra are uniformly clothed, williout 

 any denuded spots. The second joint of the funicle is as long as the first, 

 but more slender. The elytra are conjointly nmnded at tip, and the 

 pygidium is not visible. The prosternum is transversely impressed and 

 flattened, as in the preceding species, not armed in the cJ^; the emargina- 

 tion in front of the mesosternura is wide and deep, limited by sharp 

 angles. The metalhoracic cpisterna are wide, and the fifth veniral luit 

 little longer than the fourth. 



O. pistor Gyll., Sch. Cure, iii, 7G0; Balaninua putor Germ., Ins. Nov. 

 295, and 



0.(?) dilectus Harris, Trans. Hartf. Nat. Hist. Soc. i. 80, 

 Are unknown to me. I think it possible that the latter may bo a large 

 variety of ■penicelhi.s; the former is perhaps the 9 of the next. 



3. O. Isevirostris, n. sp. 



Black, densely clothed with small gray scales, which are narrower but not 

 hair-like upon the upper surface. Beak as long as the head and proth )rax, 

 slender, curved, opaque, smooth, slightly punctured and pubescent near the 

 base; head feehly punctulate. Prothorax not wider than long, rapidly 

 narrowed froni the base, strongly rounded on the sides, very strongly 

 tubularly constricted near the tip, bisinuate at base; scutellar lobe slightly 

 emarginate; surface densely rather finely punctured, scales not directed 

 transversely; dorsal line smooth, sliglitly elevated. Elytra conjointly 

 rounded at tip, pygidium slightly visible (only in (^t)\ stritu deep but not 

 broad, interspaces flat, densely punctured ; suture and alternate spaces 

 clothed with paler scales. Anteiin* with the second joint of funicle two- 

 thirds as long as the first. Side pieces of metas'ernum wide; fifth ventral 

 nearl}- as long as third and fourth united. Hind margin of prot Orax 

 beneath narrowly emarginate. Length 6.2 mm.; .io inch. 



(^. Prosternum with a very deep excavation in front of the coxse, and 

 armed each side of the cavity with a long curved horn: 9 wanting. 



Missouri, one specimen. This is the largest species in our fauna, and 

 corresponds in size with C. pUtor and dilectus; I do not feel disposed how- 

 ever, to refer it to either of them. 



4. C. pvinctirostris, n. sp. 



This species corresponds in all respects with C. hevirostris, except lliat 

 the scales are of a uniform pale gray^ the beak is stouter, especially at tiie 

 base, coarsely punctured even at the tip, with a small smooth spac:' at tlie 

 base, and the punctures of the prothora.x; though dense, are soinewliat 

 larger. Length 6.2 mm ; .25 inch. 



Colorado, one J^. The horns of ihe prosternum are shorter, and more 

 regularly curved. 



5. O. striatirostris, n. sp. 



More robust than the two preceding species. Beak not very slender, 

 more curved near the base ; shining, coarsely punctured, longitudinally 



