270 CURCULIONID^. 



[LeConte. 



Elytra not tuberculate; or only feebly mviricate to- 

 wards the tip. 3. 



3. Black, thinly pubescent; elytra with a white basal 



spot 3. tenuipes. 



Brown, mottled with white hair 4. asper. 



8. Tibife slender, not angulated 4. 



" with parallel sides, subangnlated near the base 5. cruralis. 



4. Apical teeth of prothorax distinct 6. nebulosus. 



wanting 7. nasalis. 



C. Thighs armed with a tooth 8. flavicaudis. 



1. O. curtus Gyll., Sch. Cure, iv, 287; Ueutoi'hynclms curt. Say, Cure. 

 29. ed. Lee. i, 298. 



Southern States; two specimens. 



2. C. acephalus Germ., Sch. Cure, iv, 289; Falciger aeeph. Say, Journ. 

 Ac. Nat. Sc. Phila. iii, 309; ed. Lee. i, 173; 0. subulirostris Gyll., Sch. 

 Cure, iv, 288; C. leprosus Boheman, Sch. Cure, viii, 1, 894. 



Middle and Western States. The scales are sometimes mottled, some- 

 times nearly uniform in color. The beak is cylindrical in (j^, narrowed 

 towards the tip in 9 • 



8. C. tenuipes, n. sp. 



Black, thinly clothed with line depressed hair-like scales. Beak punc- 

 tured, carinate. Prothorax very coarsely punctured, dorsal channel deep 

 towards the base, lateral tubercle small but acute. Elytra with the striae 

 wide, deep and punctured ; interspaces hardly wuder than the striae, rough 

 with small acute tubercles; base with a common whitish spot at the scu- 

 tellar region. Legs slender, thighs unarmed, tibite slightly curved; front 

 pair without apical process. Claws cleft as usual. Length 2.5 mm. ; .10 

 inch. 



Texas, Belfrage; one cj". Greatly resembles in appearance a Ceuto- 

 rkyneJms, but the beak is less slender, and the mesosternum is deeply con- 

 cave 



4. O. asper, n. sp. 



Brown, mottled with coarse white scale-like hairs. Beak rather stout, 

 coarsely punctured, flattened above, feebly carinate. Prothorax coarsely 

 punctured, dorsal channel obsolete, lateral tubercles small, acute. Elj'tra 

 deeply striate, interspaces wider than the strise, convex, each with a row of 

 large, distant, acute tubercles; tibias slender, slightly curved, front pair with 

 a very small spine directed outwards, at the external apical angle. Length 

 2.2 mm,; .085 inch. 



Texas, Belfrage. The white mottlings of the elytra do not form a dis- 

 tinct pattern, there is, however, a tendency to transverse bands, and a cru- 

 ciform spot near the base. 



5. C. cruralis, n. sp. 



Black, thinly and irregularly mottled with white, scale-like hairs. Beak 



