404 WILLIAM G. DIETZ, M.D. 



A. asper Lee. PL xii, fig. 1.5a. — Broadly oval, robust, black with some 

 lustre, antennse and legs scarcely paler, thinly pubescent above, conspicuously 

 mottled ou the elytra with whitish scales. Beak stout, rather short, cylindrical, 

 slightly curved, carinate. striate each side, punctured and pubescent, glabrous at 

 the apex, scrobes suboblique ; antenuie not very slender, inserted about the mid- 

 dle, funicle 7-,iointed, joints 1-2 stouter and longer, following joints shorter, club 

 ovoidal, acuminate. Head densely and rather coarsely punctured, somewhat 

 concave between tlie eyes, these only partially covered in repose and without 

 elevated orbital ridges ; prothoras a trifle wider than long and about two-fifths 

 wider at the base than at the apex, feebly rounded on the sides, broadly but not 

 distinctly constricted at the apex, postocular lobes nearly obsolete, lateral tuber- 

 cles acute, distinct, dorsal channel narrow, ill-defined, except at the base, surface 

 densely but not coarsely punctured and thinly pubescent, a median line and four 

 ill-defined spots arranged in a transverse line, of whitish scales; scutel minute, 

 scarcely visible. Elytra nearly one-third wider at the base than the prothorax. 

 about as long as wide, rounded on the sides from the humeral callus to the apex, 

 deeply striate, strise closely and rather coarsely punctured, interspaces convex, 

 alternately wider, each with a row of large, acute and somewhat remote tuber- 

 cles, those of the broader interspaces larger and more numerous, partially obso- 

 lete on the narrower interspaces, each bearing a bristle-like hair on its summit, a 

 transverse scutellar spot, sutural interspace and less defined spots and lijies of 

 white scales: pygidium densely but not coarsely punctured with a longitudinal, 

 ridge-like elevation ; underside rather coarsely punctured ; tibia; nearly straight, 

 subparijllel. outer angle of anterior pair acutely produced, middle and posterior 

 feebly emarginate above the apex, tarsi moderately slender, third joint less 

 broadly bilobed, fourth as long as the two preceding joints together, claws armed 

 with a long slender tooth, nearly as long as the claw itself. Length 2.0-2.5 mm. ; 

 0.08-0.10 inch. 



% . Last ventral segment with a small ill-defined fovea, middle and posterior 

 tibise unguiculate at the apex. 



Hab. — Canada, Iowa, Kaii.sas, Colorado, Montana, jNIissouri. 



Numerous specimens are before me. The obviously tuberculate 

 and mottled elytra make this species readily recognizable. The only 

 species to which the present bears a close resemblance in the tuber- 

 culate elytra, is tuberctdatus, from which it differs in the T-jointed 

 funicle. The j)roduced outer angle of the anterior tibiie bears no 

 resemblance to the process of Acantho>icelh<. A specimen in the 

 Nat. Museum coll. bears the label " an Ej)ilobiiun." 



A. loiiuipe!^ Lee. PL xii, fig 14. — Oval, entirely pitchy black above, very 

 thinly clothed with fine, pale pubescence, interspersed with white scales, under- 

 side more densely scaly. Beak rather long and stout, slightly curved, cylindrical 

 and punctured throughout in the male, slightly tapering and shining toward the 

 apex in the female, a distinct median elevated line and more obscure lateral one 

 each side ; .scrobes parallel, antennse not slender, inserted a trifle before ( 9 ). or 

 beyond (%) the middle, funicle 7-jointed, joints 1-2 elongate, stout, outer joints 

 shorter; eyes scarcely convex, without elevated ridges, only partially concealed 

 in repose. Head densely punctured, front flattened ; prothorax scarcely wider 



