TRIBE XII. ANTI-IONOMINI. 313 



West Point, N. Y., April '21. (Roh'tHxon.) Batavia, N. Y., 

 June 3. (Kn iylit.) Named in honor of Col. Wirt Robinson, of 

 West Point, N. Y. The deeper stride, pale legs and white scutel- 

 lar spot easily distinguish this from robustulits. The elytra of 

 the Batavia specimen show dull red through the vestiture. In 

 general appearance closely resembles a Ceutorhynchus. 



GKOUP B. 



Species not over 2.8 mm. in length and oblong-oval in form, 

 the elytra (except in cylindricollis) with a faint transverse de- 

 nuded fascia, the claws with a short, inconspicuous tooth. 



KEY TO SPECIES OF GROUP B. 



a. Front femora toothed; surface pubescent; beak long and slender, 

 ft. Dark chestnut brown, pubescence yellowish; femora feebly clavate; 

 larger, 2.3 2.8 mm. 461. UNGULARIS. 



b&. Reddish-brown to piceous, pubescence white. 



c. Eyes with a line of white pubescence along their inner margins; 

 femora strongly clavate, all toothed; length 2 2.2 mm. 



462. FLOKALIS. 



cc. Eyes not bordered with line of white hairs; femora feebly clavate, 

 the front ones only toothed; length 1.7 mm. 463. DEBILIS. 



oo. Front femora not toothed; beak short and stout. 



d. Form broadly oval; color reddish-brown, surface scaly; length 1.8 



2.2 mm. 464. NUBILUS. 



eld. Form oblong-oval; color uniform piceous, surface pubescent; length 



1.6 mm. 465. CYLINDRICOLLIS. 



461 (8666). AXTHONOMUS UNGULARIS Lee., 1876, 206. 



Oblong-oval. Dark brown, thinly clothed with coarse yellowish pub- 

 escence, more dense on thoracic side pieces and in line surrounding a 

 faint transverse denuded fascia on elytra; head, beak and thorax darker, 

 sometimes even piceous; antennae and legs paler. Beak rather stout, 

 alutaceous, feebly curved, as long as thorax and with a basal stria each 

 side, male; one-fourth longer, more shining, without stria, female. Frontal 

 fovea small, distinct. Second joint of funicle nearly twice as long as third; 

 3 6 rounded, subequal. Thorax wider than long, sides broadly rounded; 

 disc narrowed in front of middle, closely, deeply and rather coarsely punc- 

 tured. Elytra oblong, one-fourth wider at base than thorax; sides straight 

 for two-thirds their length, then gradually rounded to apex; strise fine,, 

 their punctures elongate, not close-set; intervals nearly flat, smooth. 

 Tooth of femora very small. Length 2.3 2.8 mm. 



Lakehurst, X. J., July 12. White Sulphur Springs, W. Ya., 

 July 5. Ranges from New York to Michigan, south to Florida. 

 Occurs on the wild senna, Cassia marylandica L. 



