154 AMERICAN OOLEOPTERA. 



Hah. — Texas, Colorado, Nebraska. 



The comparatively slender, attenuate, apically polished and sub- 

 impunctate beak, which is equal in the sexes, and the feebly armed 

 male tibiae are perfectly characteristic. Cupitatum Smith is not 

 different. 



71. A. furtivuin n.sp.— Not very robust, black, sparsely pubescent. Beak {% ) 

 barely as long as tbe bead and prothorax, not stout, moderately dilated, cylindrical 

 in apical half, sparsely punctate, except about tbe antennal fovea ; supra -antenna! 

 groove well marked; v9) obviously longer than tbe bead and prothorax, 

 more slender, dilatation feebler and more basal ; surface more finely, sparsely 

 punctulate, in great part shining. Anteunse rather slender, first joint as long as 

 {%), or a little longer than (J) the next two; front sulcate; eyes moderately 

 prominent. Prothorax as long or nearly as long as wide, widest behind the 

 middle, noticeably narrowed before the base, and somewhat constricted in front; 

 surface moderately, coarsely, closely punctate; basal fovea deep, elongate, some- 

 times extending as a finer line nearly to the apex. Elytra about one-half longer 

 than wide, widest behind the middle; humeri moderate; surface dull, finely 

 rugose; intervals flat, nearly twice as wide as the striae. Beneath sparsely punc- 

 tate; legs rather slender. Length 1.7-1.9 mm. ; .07-.08 inch. 



%. Sutural angles broadly rounded; all the tibiae with a short mucro, that 

 of the front tibise being so small as to readily escape observation. 

 9 . Sutural angles not rounded ; tibite unarmed. 



Hah. — Georgia. 



A number of specimens in the Zimmerman collection, now de- 

 posited in the Museum of Comparative Zoology at Cambridge, bear 

 a colored locality label which I was unable to interpret, but they 

 are doubtless from the same region. 



72. A. COiiiinodiiin n. sp. — Size, form and general appearance of rostrum, 

 from which it differs in the following particulars: a little more elongate; beak 

 more coarsely punctate; eyes smaller, less prominent; front not sulcate; pro- 

 thorax less coarsely, even more densely punctate. Elytra slightly wider behind 

 the middle; intervals wider and noticeably convex. 



% . Sutural angles rounded ; all the tibiae armed with a short mucro. 

 9. Not seen. 



Hah. — Montana. 



A single male in the collection of the National Museum. Tlie 

 pubescence is entirely wanting, but probably from abrasion ; the 

 mucro of the front tibiae is simple, that of the middle and hind 

 tibiae is larger and .somewhat irregular. Another male in Dr. 

 Horn's collection, also from Montana, probably belongs here, while 

 differing by the less densely punctate thorax and flat elytral 

 intervals. 



73. A. COiifertum Smith. —Again similar to rostrum, but a little smaller 



