264 



SIT, FA M I L Y X. C URCULION I X JE. 



GROUP A. 



Our four- species of this group are separated as follows : 



KEY TO EASTERN SPECIES OF CROUP A. 



a. First joint of antennal t'unicle shorter than second; larger, 8 11 mm.; 

 pygidium of male with silken hairs; occurs on chestnut. 



383. PKOBOSCIDEUS. 



aa. First joint of funicle not shorter than second, usually much longer. 

 b. Surface clothed with hairs; femoral tooth rectangular, strong; tibia? 

 at tip strongly mucronate; pygidium of male convex, punctate, 

 hairy; length 7 9 mm.; occurs on hickory. 384. CARY.-E. 



bb. Surface clothed with scales. 



c. Beak of female straig'nt nearly to end; pygidium of male concave, 

 fimbriate; length 8.5 9 mm.; cccurs preferably on biennial- 

 fruited oaks, (quercus Horn=male. ) 385. RECTUS. 

 cc. Beak of female regularly curved from base to apex; pygidium of 

 male with tuft of hair; length 4.5 7 mm.; occurs on chestnut. 



386. ALGOXQUIXUS. 



383 (8965). BAI.ANI.XU.S PROBOSCIDEUS Fab., 1775, 142. 



Ovate. Dark brown, densely clothed with golden or clay-yellow scale- 

 like hairs; thorax at middle 

 usually broadly fuscous; ely- 

 tra with fuscous spots irregu- 

 larly but closely placed; body 

 beneath densely clothed with 

 pale yellow silken scales. Beak 

 often nearly twice as long as 

 body, female, not longer than 

 body, male, straight at base, 

 curved at tip. Elytra each 

 separately rounded at tip. 

 Femoral tooth broad, trian- 

 gular, its apex more acute, 

 directed outwards. Male with 

 joints of funicle shorter, 6 or 



Fig. 73. a, Female beetle; b, same in outline 7 Combined equal to scape; 

 from side; c, head, beak and antenna of male. All fifth Ventral Segment truncate, 

 X 3- (After Chittenden.) 



with a small glabrous area at 



apex and a tuft of hair each side. Pygidium of female scarcely exposed, 

 with short sparse pubescence. Length 8 11 mm. (Fig. 73.) 



Not yet taken, but should be found in southern Indiana. 

 Occurs from Massachusetts and Rhode Island (Providence, Aug. 

 19), to North Carolina on the Atlantic roast, westward to south- 

 ern Ohio, Tennessee and Kansas, appearing in August and con 

 tinning to November. Known as the larger chestnut weevil and 

 breeds in native and imported chestnuts and chinquapins. It has 



