430 BULLETIN (J3, UNITED STATES NATIONAL MUSEUM. 



size and closely placed, usually more or less eroded, intervals more 

 or less feebly convex, finely, sparsely, and obsoletely punctulate; 

 striae more or less impressed, the punctures slightly denser and ir- 

 regular on the apical declivity. 



E'pi'pleurcB smooth and usually impunctate, moderately wide, with 

 margins parallel in middle two-fourths, thence gradually converging 

 to near the aj^ex. 



Sterna more or less punctate and rugulose. 



Parapleurce rather coarsely punctate. 



Ahdomcn more or less obsoletely punctulate on the first three seg- 

 ments, fourth and fifth more or less punctate; rather strongly rugu- 

 lose on the first segments, the others obsoletely so. 



Legs moderate in length and stoutness. Profemora more or less 

 feebly sinuate in both sexes; tibial spurs rather short, the anterior 

 similar. Tarsi slightly dissimilar in the sexes. 



Male. — P^longate, somewhat narrow and suboblong. Elytra usually 

 widest at about the middle. Abdomen oblique, feebly convex, 

 strongly and broadly impressed on the first three segments. Anterior 

 tarsi with the first two joints rather densely clothed at tips beneath, 

 with yellowish pubescence, that more or less obliterates the plantar 

 groove. 



Female. — Somewhat robust and more or less elongately ovate. 

 Elytra usually widest behind the middle. Abdomen horizontal, 

 rather evenly but not strongly convex, scarcely longitudinally convex. 

 Tarsi simple. 



Measurements. — Males: Length, 17-17.5 nun.; width, G-6.8 mm. 

 Females: Length, 19-19.5 mm.; width, 7.5-8 mm. 



Genital characters., male. — Edeagophore elongate, oval-fusiform 

 and not strongly arched. 



Basale oblong oval, sides feebly arcuate and evenly convex from 

 side to side. 



Apicale (Plate 4, fig. 20). — Subequilaterally triangular, quite 

 strongly depressed ; surface with a rather broad fusiform membra- 

 nous depression at middle three-fifths, laterally more or less convex, 

 with a few scattered and rather coarse punctures; the general surface 

 is flattened and somewhat declivous at the terminal fifth ; sides rather 

 strongly arcuate at middle third, thence to the base rather straight, 

 with small accessory lobes visible laterally at basal third, toward 

 apex rather deeply sinuate; apex somewhat produced and narrowly 

 rounded at tip; base arcuately lobed at middle and sinuate laterally. 



Sternite somewhat transversely semicircular in outline. Each lobe 

 triangular with the external border evenly and obliquely arcuate 

 from base to apex; internal border more or less straight and con- 

 verging to the mid-line of the base; apex narrowly rounded; surface 



