2 PEOCEEDINGS OF THE NATIONAL MUSEUM vol. 76 



apical angles to basal fourth, where they are broadly rounded, then 

 more strongly obliquely narrowed to the posterior angles, which are 

 obtusely angulated; submarginal carina visible from above anteriorly, 

 and when viewed from the side the marginal carina is strongly sinu- 

 ate, the submarginal carina feebly sinuate, the two carinae widely 

 separated anteriorly, and connected to each other at basal fourth; 

 anterior margin strongly sinuate, with the median lobe strongly, 

 broadly rounded ; base feebly, broadly emarginate at middle of each 

 elytron, the median lobe strongly produced, and arcuately emarginate 

 in front of the scutellum; disk uneven, with a large, deep, concave 

 median depression extending from anterior margin to base, the de- 

 pression deeper and broader posteriorly, a deep, narrow depression 

 extending along lateral margins to middle, then irregularly back- 

 ward and terminating in a deep pitlike puncture at basal emargina- 

 tion, and with a large, strongly elevated round swelling in place of 

 the prehumeral carina; surface coarsely, irregularly punctate, the 

 punctures more or less confluent toward the sides and in the depres- 

 sions, somewhat rugose, and without distinct pubescence. Scutellum 

 not transversely carinate, but the surface feebly reticulate. 



Elytra slightly wider than pronotum at base, and equal in width 

 at base and apical third ; sides nearly parallel to apical third (very 

 broadly, vaguely constricted at middle) , then obliquely narrowed to 

 the tips, which are separately broadly rounded, and coarsely serru- 

 late; disk strongly, broadly depressed along sutural margins, which 

 are feebly elevated near apex, with broad, deep basal depressions, 

 and each elytron with a vague, broadly obtuse costa extending from 

 humerus to behind middle; surface irregularly, obsoletely punctate, 

 more densely punctured in the pubescent areas, vaguely rugose to- 

 ward the sides, and each elytron ornamented with white pubescent 

 designs as follows : A small, round spot near sutural margin at basal 

 fourth, a larger spot enclosing a dark area along sutural margin at 

 middle, an irregular spot behind it along the lateral margin, a large 

 oblong spot enclosing a dark area along sutural margin at apical 

 fifth and connected to an irregular spot extending to lateral margin, 

 and a small spot at apex. 



Abdomen beneath finely, sparsely punctate, the punctures more 

 or less connected transversely on basal segment, sparsely clothed with 

 very short white hairs, and the last three segments with a spot of 

 more densely placed hairs at the sides; sides only feebly exposed 

 above ; first segment convex and without longer hairs at middle ; last 

 segment broadly rounded at apex; suture between first and second 

 segments not visible; vertical portions of segments slightly more 

 densely pubescent than ventral surface ; pygidium without a project- 



