256 BULLETIN 14o, UNITED STATES NATIONAL MUSEUM 



densely punctate, coarsely, irregularly rugose, and densely clothed 

 with long, recumbent, whittish pubescence, which nearly conceals the 

 surface ; epistoma scarcely transverse between the antennae, feebly 

 elevated, and broadly but not very deeply, arcuately emarginate in 

 front ; antennae extending slightly beyond anterior margin of pro- 

 notum, serrate from the fifth joint, and the outer joints as wide as 

 long; eyes broadly oblong, and slightly more acutely rounded beneath 

 than above. 



Pronotum about as long as wide, slightly narrower at base than 

 apex, and widest near apical angles ; sides feebly, obliquely narrowed 

 from near the apical angles to near the posterior angles, where they 

 are feebly sinuate, and the posterior angles rectangular; when 

 viewed from the side the marginal and submarginal carinae are 

 strongly sinuate, rather widely separated anteriorly, and connected 

 to each other behind the middle; anterior margin strongly sinuate, 

 and the median lobe strongly, broadly rounded; base vaguely emar- 

 ginate at middle of each elytron, the median lobe broadly rounded, 

 and subtruncate in front of scutellum ; disk moderately convex, with- 

 out median depressions, but with a vague depression on each side 

 along lateral margin, and with moderately distinct, strongly arcuate 

 prehumeral carinae; surface obsoletely granulose, coarsely, trans- 

 versely rugose at middle, sparsely, finely punctate between the 

 rugae, and sparsely clothed at the sides with long, recumbent, whitish 

 pubescence. Scutellum feebly, transversely carinate, and the surface 

 finely, densely reticulate. 



Elytra about as wide as pronotum at base, and slightly wider at 

 base than behind middle; sides nearly parallel for a short distance 

 behind base, feebly, arcuately constricted near middle, broadly, arcu- 

 ately expanded behind middle, then obliquely narrowed to the tips, 

 which are separately, narrowly rounded, and feebly serrulate; sides 

 of abdomen broadly exposed above; disk with a vague longitudinal 

 costa, between which and the suture the surface is longitudinally 

 concave, sutural margins elevated from basal third to apex, and with 

 broad, moderately deep basal depressions; surface densety, coarsely 

 imbricate-punctate, sparsely, uniformly clothed with short, incon- 

 spicuous hairs, and each elytron ornamented with a vitta of sparsely 

 placed, whitish hairs, extending along sutural depression from basal 

 depression to apex. 



Abdomen beneath rather densely, finely punctate, the punctures 

 connected transversely by fine, sinuate lines, and densely clothed with 

 long, recumbent, whitish pubescence, nearly concealing the surface; 

 first segment convex at middle; last segment broadly rounded at 

 apex; vertical portions of segments densely pubescent similar to 

 ventral surface; pygidium sparsely punctate, feebly carinate, but 



