68 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



Pro pleura- obsoletely to fiiieh", sparsely siibmuricately pimctiilate 

 and nigulose. 



Elytra oval, distinctly less than twice as long- as wide, widest at the 

 middle ; base more or less emarginate, usually feebly sinuate each side 

 of the middle, and generally slightly wider than the contiguous 

 prothoracic base; humeri more or less exposed and obtuse: siden 

 evenly arcuate, apex obtuse and rather narrowly rounded; dise mod- 

 erately convex on the dorsum, quite evenly and strongly rounded at 

 the sides, arcuately declivous posteriorly; almost coarsely, irregu- 

 larly and rather densely punctate, the punctures are subequal in size 

 and obsoletely nuiricate, frequent}^ there is a tendency to an arrange- 

 ment into rather distant rows on the dorsum; laterally there is a 

 slight tendency to rugulosity. 



Epipleurfv moderate in Avidth and gTadually narrowing from base 

 to apex ; superior margin feebly and broadly sinuate beneath the 

 humeri; surface dull, finely and irregularly punctate. 



Sterna obsoletely to rather densely and finely punctate, more or less 

 rugose. 



Parapleura' finely and quite densely punctate. 



Abdomen finely, sparsely, and irregularly punctate, more or less 

 rugulose, more coarsely sculptured on the first segment, the fifth 

 coarsely punctate. 



Le(/.s rather short and somewhat slender, more or less strongly 

 sculptured. Anterior femora mutic; anterior tibial spurs compara- 

 tively small and feebly dissimilar in the sexes. Anterior tarsi with 

 the first joint slightly thickened at tip beneath and a little dissimilar 

 in the sexes. 



Male. — Oblong-ovate, moderately slender. Antenna^ reaching to 

 the base of the prothorax. Elytra moderately narrowed in apical 

 fourth, arcuately and scarcely obliquely declivous posteriorly. Ab- 

 domen moderately oblique and convex, more or less broadly im- 

 pressed at middle of the • first two segments. Anterior spur of 

 the anterior tibia^ about a half longer than the posterior, rather 

 slender and gradually narrowing fr'om base to apex, acute and 

 feebly curved. First joint of the anterior tarsi with a small in- 

 couspicuons pencil of modified spinules. surrounded by ordinary spin- 

 ides on the thickened tip beneath. 



Female. — Ovate and robust. Antenna^ not quite reaching to the 

 prothoracic base. P^lytra feebly nai'rowed and arcuately, vertically 

 declivous in apicM fourth. Abdomen horizontal, strongly convex. 

 Anterior spurs of the anterior tibiir about a half longer than the 

 iiosterior, slightly broadened, gradually narrowed from base to apex; 

 both spurs rather strongly curA'ed. First joint of the anterior tarsi 

 with ordinary spinules on the thickened tip beneath. 



