CLOVER-LEAF WEEVIL. 



deep, punctured; antennae reddish-black, scape reaching to middle of eyes, not as 

 long as funicle, not greatly enlarged at tip; first joint of funicle distinctly longer 

 than second, enlarged at the apex so that it is about one-half as thick as long, second 

 joint equal to three and four united, joints three to seven regularly shorter and 

 broader, seven as wide as long, club elongate-oval, pointed at the tip, antennae with 

 many fine hairs, those on club very fine and dense. Mandibles po.ished, dull red, 

 not emarginate at tip, maxillae and all the palpi pale brownish-red. 



Prothorax broader than long, broader in female than in male, in the female broadly 

 widened in front of the middle, in the male converging more behind than in female; 

 sides broadly impressed, only slightly swollen; dorsum densely rather coarsely punc- 

 tured, densely clothed with scales and with many slender pointed hairs; usually with 

 a narrow pale median dorsal line bordered with wide dark, almost black in some, 

 bands of scales which reach to the sides; sides and beneath with dark yellow scales, 

 generally with a dark spot on sides behind and an indistinct dark line running from 

 this spot toward the front. 



Scutellum extremely small, narrowly triangular, clothed with pale scales. 



Elytra very broad, at tip broadly rounded, sides especially in the male nearly 

 parallel, humeri prominent and 

 clothed with darker scales. 

 Suture and alternate inter- 

 spaces more strongly elevated 

 than others, deeply striately 

 punctured, strise without setae; 

 each interspace with a single 

 row of black setae pointing 

 backward and partially decum- 

 bent, more erect behind ; tip of 

 elytra and often the sides with 

 some short white hairs. The 

 coloration of the scales varies 

 from solid gray to black, 

 through various shades of 

 brown yellows. Some speci- 

 mens are tessellated with brownish-yellow and black, the tessellation usually on the 

 more elevated interspaces. 



In the male the outer interspaces have paler scales even in the darkest specimens, 

 in the female this pale coloration is sometimes, but rarely, entirely absent. 



Venter with lighter colored scales and many light hairs ; front coxae slightly separated , 

 mesosternal process between middle coxae broad perpendicular, triangular at tip; 

 intercoxal process of first abdominal segment very broad, coxae separated by more 

 than their width. First segment in male impressed, emarginate posteriorly. Stem 

 of male genitalia nearly or quite as broad as long. 



Legs short, stout, especially the femora; black, tarsi often ferruginous, claws long 

 curved, red and darker at tips; front tibiae and hind femora distinctly curved, front 

 tibiae more so in male; legs usually clothed with lighter scales and hairs than the 

 body, femora scaled, tibiae and tarsi sparsely haired; middle tibiae with a distinct 

 apical hook. 



Egg [fig. 3]: Elongate oval, 1.1 mm. to 1.2 mm. long, 0.5 to 0.6 mm. broad, very 

 regularly hexagonally sculptured * * *. [Watery yellow when laid, with a smooth 

 shining shell, the yellow color deepening with age to pale olive green and finally 

 turning to a dull black.] 



Larvae [ 2 ] (Descriptions from Riley, Folsom, and observations by the author). First 

 stage: 1.5 to 2 mm. long, narrow, thickest at middle, tapering toward both ends; 



Fig. 2.— Adult clover-leaf weevil, lateral view. Much enlarged. 



2 The head widths for the different larval instars are quite constant and the averages will be found in 

 Table I. 



