334 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



Elytra siiboblong-oval, about a half longer than wide, widest at 

 the middle; hase rather truncate and more or less sinuate. Each 

 side of the middle equal to or distinctly wider than the contiguous 

 prothoracic base ; humeri more or less obtusely rounded ; sides evenly 

 and moderately arcuate, apex more or less feebly attenuate, not very 

 narrowh^ rounded ; disc moderately convex, not noticeably flattened, 

 evenly and strongly rounded laterally, arcuately declivous posteriorly ; 

 surface irregularly, densely and coarsely, slightly submuricately 

 punctate on the dorsum, sides and apex densely sculptured Avith rec- 

 linate granules or tubercles, rarely the punctures are feebly subseriate 

 on the dorsum each side of the suture. 



EpipleurcB comparatively moderate in width, gradually narrowing 

 from base to apex, superior margin nearly straight — at most but 

 feebly sinuate beneath the humeri, someAvhat decurving apically. 

 rarely visible from above at the humeri; surface very sparsely sub- 

 muricately punctulate. 



Steima denselj^ punctato-rugulose. 



Parapleural more or less shining and coarsely punctate. 



Abdomen more or less shining, more or less densely and coarsely 

 punctate, more strongly so and rugulose to rugose about the coxse, 

 less densely and more finely sculptured on the last tAvo segments. 



Legs moderate in length, somewhat stout, and densely but not ver}^ 

 coarsel}^ sculptured; anterior femora mutic; tibial spurs similar in 

 the sexes, the anterior of the protibia? slightly longer than the pos- 

 terior; tarsi dissimilar in the sexes. 



Male. — Oblong-OA'ate, somcAvhat narrow. Antennae scarcely reach- 

 ing beyond the prothoracic base. Elytra somewhat attenuate in 

 ajjical fourth, arcuately and rather obliquely declivous behind. Ab- 

 domen more or less oblique and moderately convex, more or less 

 broadly impressed at middle on the first two segments. First tAvo 

 joints of the protarsi slightly thickened at tip beneath, and there 

 clothed with blunt tufts of yelloAvish pubescence, the second smaller 

 than the first; first joint of the mesotarsi Avith a similar but moderate 

 tuft, obliterating the groove. 



Female. — Robust, oA^ate. Antennae scarcely attaining the protho- 

 racic base. Elytra arcuately and quite A'ertically decliA'ous behind. 

 Abdomen horizontal and rather strongly convex. First joint of the 

 protarsi slightly thickened at tip beneath, groove almost entire. 



3Ieasure7nents. — Males: Length, 15-16.5 mm.; Avidth, 6-6.5 nnn. 

 Females: Length, 16-19 mm.; width, 7.5-9 mm. 



Genital characters., male. — Edeagophore flattened oblong-ovate, 

 very slightly arched. 



Basale oblong, slightly more than twice as long as Avide; sides 

 feebly arcuate, subparallel; surface moderately convex. 



