82 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



Oblong-ovate to ovate, moderately elongate, shining, sometimes 

 subasperulate at the sides of the elytra. 



Head scarcely twice as wide as long, more or less broadly and 

 feebly impressed laterally, frontal suture usually evident and more 

 or less bisinuate; frons broadly flattened to feebly convex, coarsely 

 punctate, punctures finer and sparser on vertex, more coarsely^ 

 densely^ and somewhat eonfuent on the ep'istoma. Antenna' mod- 

 erate in length and comparatively stout, outer four joints very feebl}' 

 compressed and not dilated, third joint subequal to the combined 

 lengths of the next two, the fourth just noticea))ly longer than the 

 fifth, the latter, sixth, seventh, and eighth subequal in length, the 

 eighth subtriangular, ninth and tenth suborbicular, eleventh short 

 ovate. 



Pronotam more or less subquadrate, usually widest before the 

 middle, occasionally at the middle, from one-sixth to one-third wider 

 than long; disc evenly and mocleratel}' convex, arcuately declivous 

 laterally, rather coarsely, almost evenly and rather thickly punctate, 

 punctures generally denser at the sides where it is also more or less 

 rugulose on the declivity; ajpex subtruncate to very feebly emargi- 

 nate, finely and more or less obsoletely beaded ; sides rather strongly 

 arcuate anteriorly, thence straight and obliquely converging to the 

 base as viewed vertically from above, more broadly and evenly arcu- 

 ate in anterior three-fourths, thence more or less feebly sinuate to 

 base as viewed obliquely from the side, finely beaded ; hase subtrun- 

 cate to feeblv rounded, finelv margined, one-fifth to one-third wider 

 than the apex; apical angles obtuse and slightly rounded; basal 

 angles obtuse. 



Profleurw usually glabrous, sparsely punctulate, and more or less 

 irregularly rugulose. 



Elytra oblong-oval to oval, frequently strongly inflated, widest at 

 the micldle; hase truncate to feebly emarginate; humeri obtuse, at 

 times slightly prominent, narrowly rounded ; sides evenly arcuate, 

 apex obtusely rounded ; disc moderately convex on the dorsum, 

 strongly and quite evenly rounded laterally, inflexed sides broadly 

 and feebly concave before the apex, dorsum arcuately declivous 

 posteriorly, strongly, quite evenly and diffusely punctate to striato- 

 punctate, the punctures generally simple but slightly asperate lat- 

 erally and on apex. 



Efiflenrcv moderate in width, gradually narrowing from base to 

 apex, very feebly and broadly sinuate beneath the humeral region; 

 surface finely and sparsely punctate. 



Stenui quite strongly and densely punctate, rugose. 



Pa7Yiple'ura> strongly and densely punctate. 



Abdomen glabrous and shining,- rather thickly punctate and 

 rugulose. 



