480 BULLETIN (5.3, UNITED STATES NATIONAL MUSEUM. 



developed centrally, at the i)eripherv both stronger and snbequal in 

 nize, becoming irregular al)Out the apical declivity. 



Epipleurw quite broad, occupying the whole of the infiexed sides of 

 the elytra ; surface smooth and opacjue, sparsely and finely sub- 

 asperately punctate; scarcely narrowing in basal two-thirds, thence 

 gradually to apex; superior margin visible from above throughout 

 its entire length, forming a distinct and subacute bead for the elytra. 



Steima. — Prosternum impressed before the coxte, i)rominent at 

 middle and continuously so with the intercoxal portion, continuing 

 forward to the apical arcuation and posteriorly ending in a conical 

 mucro; surface sparsely and subasperately punctate and feebly 

 rugulose laterally, on the central prominent portion coarsely muricato- 

 tuberculatel}' punctate, and with erect brownish hairs. 



JVIeso- and metasterna irregularly and sparsely punctate and 

 more or less rugose. Mesosternum with brownish hairs. 



Para pleura!, coarsely but not densely punctate. 



xihdomcn somewhat shining, first three segments rather densely 

 punctate and more or less rugose, the small asperities are shining 

 and larger centrally; last two segments more finely and densely 

 punctate in their apical moieties, quite impunctate basally. 



Legs moderate in length and thickness. Femora moderately com- 

 pressed, widest near the middle, mutic in both sexes; tibia? moderateh' 

 arcuate in both sexes; spnrs small and similar. Tarsi with the plan- 

 tar grooves entire, marginal and apico-marginal spinules as usual 

 and ferrugineous in color. 



Male. — Slightly narrower. Elytra arcuately and just the least 

 obliquely declivous posteriorly. Abdomen subhorizontal, moderately 

 convex, rather strongly, broadly and longitudinally impressed at 

 middle of the first three segments; intercoxal process concave; punc- 

 tuation finely muricato-tuberculate. Legs stouter, and the protarsi 

 moderately stout. 



Female. — Slightly broader and a little more robust. Elytra arcu- 

 ately and vertically declivous posteriorly. Abdomen evenly convex, 

 intercoxal process feebly impressed, segments I'ather sparsely and 

 finely subasperately punctate. Legs less stout, anterior tarsi slender. 



Measvi'emevts. — Male: Length, 13 mm.; width, 5 mm. Female: 

 Length, 13 nnn. ; Avidth, 5.8 mm. 



Ge)iital characters^ male. — P^deagophore (Plate 0, fig. 11) obtusely 

 oblong-ovate in form, well chitinized, moderately elongate. 



Basale oblong, about two and a half times longer than wide, rather 

 evenly convex, slightly depressed along the middle. Avith a faint indi- 

 cation of a median longitudinal linear impression. 



Apicalc rather broadly subpyriform; apical third strongly and 

 quite suddeidy deflexed, becoming immediately horizontal and lami- 

 nate, broadly rounded at apex; dorsal surface glabrous with basal 



