54 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



rather narro^Yly I'oiinded ; di)<;e more or less moderately convex, some- 

 times slightly flattened on the dorsum, more strongly and rather 

 evenly rounded laterally, arcuately declivous posteriorly, punctate; 

 the strial punctures are rather small to moderate in size and some- 

 what closely placed in moderately distant series, usually not at all, 

 but sometimes moderately impressed ; intervals flat, rarelj^ slightly 

 convex, and with a single series of rather widely spaced, very fine 

 punctures which at times become slightly irregular, especially later- 

 ally and about apex. 



Epij)leiir<(' moderate in width, gradually narrowing from base to 

 apex, superior margin very broadly and slightly sinuate beneath the 

 humeri ; surface smooth, obsoletely to fineh' and sparsely punctulate. 



jSte?ma more or less shining, strongly punctate, and rugulose. 



Parapleurce rather densely, finely, and subscabrously punctate. 



Abdomen usually shining, sparsely and quite regularly punctulate, 

 more or less rugulose; intercoxal process and fifth segment more 

 strongly sculptured. 



Legfi long, comparatively moderately stout. Anterior femora mutic 

 and the anterior tibial spurs moderately long, slightly dissimilar in 

 the sexes. Anterior tarsi with the first joint feebly thickened at tip 

 beneath, 



Male. — Body moderately slender and more or less fusiform, an- 

 tennae reaching a short distance beyond the base of the prothorax. 

 Elytra quite gradually narrowed in posterior fourth, arcuately and 

 obliquely declivous. Abdomen distinctly oblique, moderately convex, 

 first two segments more or less imj^ressed at middle, process concave. 

 Anterior spur of anterior tibia' about a third longer and a little 

 stouter than the posterior, and narrowing moderately from base to 

 apex. First joint of the anterior tarsi Avith the minute pencil of 

 modified spinules on ti]) beneath scarcely evident and surrounded by 

 the ordinary spinules. 



Female. — Robust. Antenna' reaching just beyond the base of the 

 prothorax. Elytra broadly oval, somewhat gradually narrowed and 

 arcuately declivous posteriorly. Abdomen hoi-izontal and rather 

 strongly convex. Anterior sjjurs of the anterior tibije about a half 

 longer than the posterior and feebly broadened, with sides rather 

 slowly but evenly narrowing to apex, the latter acute. Anterior tarsi 

 with ordinary spinules on the thickened tip beneath, the latter trans- 

 verse and narrow. 



MeasvremenU. — Males: Length, 19-23 mm.; width, 0.5-8.5 mm. 

 Females: Length, 23-25 mm.; Avidth, 6.2-9.5 mm. 



Genital characters^ male. — Edeagophore elongate, flaxseed-shaped 

 (flattened, oblong-ovate) and more or less arched. 



Bas(de oblong; surface strongly convex towards base; sides feebly 

 arcuate. 



