232 CUKCULIONID^. 



ijcConte. 



densely, coarsely punctured; mesosternum protuberant; last ventral seg- 

 ment with a round impression near the tip. Thighs annulated, front and 

 middle pair not toothed; hind pair very obtusely toothed. Lengtli G mm. ; 

 .24 inch. 



Georgia and Texas. I perceive no sexual differences in the f»>;ir speci- 

 mens in my collection. 



14. C. posticatus Boh., Sch. Cure. iv. 406. 



Southern States; the references to Say given by Boheman, and c()i)ied in 

 Gemminger and Harold, should be hereafter omitted, as was done in the 

 Melsheimer Catalogue; no descripticm was ever published by Say, and the 

 citation from the Journal of the Academy of Natural Sciences of IMiiladel- 

 phia is erroneous. This species resembles in appearance C. 7uiso, but diftei's 

 by the shorter and strongl}^ striate beak, the different position of the antennae; 

 by the coarser punctuation of the prothorax, which is less suddenly narrowed 

 and less constricted in ft'ont, and not marked with two discoidal spots of 

 white pubescence; by the elytra having the humeri, and sides more rounded; 

 and finally by all the thighs being strongly though not acutely toothed. 

 The under surface is very coareely punctured, and the last ventral segment 

 has a broad, rounded impression. The mesosternum is protuberant and per- 

 pendicular in front, as in the species of Division II, and in the three prece- 

 ding species. In some specimens the elytral interspaces are equally, finely 

 carinate; in others the alternate cariniB are obsolete. 



15. O. g'eminatus I Dej . Cat. 322: puncticolUs | Walsh, Proc. Bost. Soc. 

 Nat. Hist, ix, 1863, 310. 



Maryland, Illinois, Kansas. Related to the next three species, but easily 

 distinguished by the prothorax being densely and uniformly cribrate, not 

 at all plicate; the striae of the elytra are composed of large, quadrate punc- 

 tures, interspaces broad and fiat; the third and fifth are slightly elevated be- 

 hind the middle; the seventh is subcarinate near the humeri, which are 

 somewhat obliquely rounded; the pubescence is yellowish, very thin and 

 fine, mottled with grayish bands, with a white spot at the base of the 

 third interspace, and rows of very short bristles. Body beneath coarsely 

 punctured; ventral segments 3-5 more finely, but not very densely punc- 

 tured; fifth not impressed in (J^; with a shallow but well defined circular im- 

 pression at the tip in 9 ; in the only specimen of the latter sex in my col- 

 lection, the second ventral segment is also transversely elevated, and de- 

 clivous behind; this, however, may be a deformity. Thighs armed with a 

 large, obtuse tooth. Length 4.2 mm.; .17 inch. 



16. C. InfectorBoh., Sch. Cure, viii, 2. 49. 



One specimen, New York. Of the same size, form and color, as the 

 preceding, but with the prothorax distinctly carinate, and more coarsely 

 sculptured; the cribrate punctures being confluent, so as to leave longitudi- 

 nal ridges; the quadrate punctures of the elj^tral striae are more approxi- 

 mate; the interspaces narrower and somewhat convex, and the pubescence 

 more yellow, and not mixed with gray. The under surface is uniformly 

 and coarsely punctured; last ventral segment not impressed. 



