228 CTJRCULIONID^. 



[LeConte. 



fuscous pubescence, united at the tip. Elytra with fuscous or grayish 

 pubescence, more condensed into a transverse band behind the middle, al- 

 ternate interspaces carinate; third interrupted in two places; fifth inter- 

 rupted at the pubescent band; two outer carina3 rather indistinct; striae 

 composed of large, distant quadrate punctures. Thighs not annulated, with 

 one large, acute tooth, and one small denticle. Length 4.6 mm. ; .18 inch. 

 Middle and Western States; Texas. Of the same form and size as C. 

 nenuphar; it is distinguished from the next species chiefly by the broader, 

 more strongly carinate prothorax; by the two lines of pubescence being 

 straight, and meeting at the front margin ; and by the first ventral segment 

 being less punctured than the others. It is (7. seniculus \ Dej. Cat. 



6. O. afflnis Boh., Sch. Cure, iv, 429. 



Of the same form as C. elegans, but larger, with the thorax similarly 

 sculptured, more deeply constricted in front, distinctly carinate from the 

 tip to the middle, with a transverse discoidal impression about the middle; 

 sides broadly rounded, pubescence brownish yellow, lines broad, curved, sinu- 

 ate, and irregularly branching on the disc and sides. Elytra thinly pubescent, 

 with a short basal line on the third interspace, and a broad posterior band 

 brownish yellow; first carina broadly interrupted in two places; second 

 feebly interrupted near the base; third feebly interrupted in front of the 

 middle in one specimen, but not in the other; strise composed of large, dis- 

 tant, quadrate punctures. Beak long, slender, strongly striate and punctured. 

 Thighs with two small, acute teeth, annulated. Ventral segments shining, 

 sparsely and not coarsely punctured; fifth with two inconspicuous tuber- 

 cles. Length 5-7 mm. ; .2-. 27 inch. 



Western States, two specimens, of which one was sent by the late B. D. 

 Walsh. The more sparsely and less coarsely punctured ventral segments dis- 

 tinguish this easily from all the neighboring species. 



7. C. elegans Boh., Sch. Cure, iv ,428; CryptorliyncJius el. Say, Cure. 

 18; ed. Lee. i, 283. 



Of the same form, size and color, as C. seniculus, but the beak is longer 

 and less curved; the prothorax is narrower, feebly carinate, and faintly tu- 

 berculate; the lines of pubescence are narrow, curved, and do not meet at 

 the front margin. The carinse of the elytra are quite similar, except that 

 the second one (that of the fifth interspace) is not interrupted behind at the 

 transverse band; the pubescence is more yellow, and less mixed with gray. 

 The teeth of the thighs are small, acute, and nearly equal. The ventral 

 segments are more coarsely punctured than in G. affinis, and the first is not 

 less so than the others. 



8. C. aratus Germar, Sp.Nov. (Cryptortiynchus'), 283; Boh. Sch. Cure, 

 viii, 2, 26. 



I refer, with some hesitation, to this species, a specimen collected in 

 Texas by Belfrage, which resembles C. retensus in form, color, and sculp- 

 ture, but is much smaller, (4 mm.; .16 inch), and has the carina of the 

 fifth interspace not interrupted near the base. It differs from all the other 



