EEVISION OP ELEODITNT BLAISDELL, 277 



irregularly and more or less sparsely puiictiilate, punctures usually 

 not noticeably denser laterally. Elytral suture on apex more or less 

 deeply impressed. Apex or cauda concave beneath, the surface of 

 which is formed by the internal elytral surface. 



Epipleuiw slightly widened at base, thence gradually narrowing 

 to apex, where it narrowly margins the inferior surface of the pro- 

 duced apex or caiida ; surface smooth and usually impunctate. 



Sterna more or less punctate and rugose. 



Parapleuriv more or less punctate. 



Aljdo'nwn horizontal, obsoletely or rather strongly punctate, rugu- 

 lose. 



Legs more or less moderate, anterior femora armed in the sexes; 

 anterior tibial spurs e(iual and acute. Tarsi similar in the sexes. 



Male. — Elongate. Antenna? attaining the posterior fourth of the 

 prothorax. Elytra usually more than twice as long as wide and more 

 or less strongly and gradually produced at apex. Abdomen rather 

 strongly convex, scarcely at all flattened or impressed. Legs some- 

 what stout, especially the anterior femora, which are armed with 

 a very acute tooth; posterior tibiix? more or less arcuate. 



Female. — Robust. Antenna' attaining the posterior third of the 

 prothorax. Elytra suboval, and usually less than twice as long as 

 wide, rather moderately obliquely declivous posteriorly; apex more 

 or less produced. Abdomen strongly convex. Legs moderate; ante- 

 rior femora with a more or less acute tooth; posterior tibia? straight. 



Genital eharaeters^ male. — Edeagophore of the usual oblong-ovate 

 form and rather elongate. 



Basale slightly or not arched, quite evenly convex. 



Apical'' triangular, slightly elongate, not decurved at tip ; surface 

 rather evenly convex more strongly so apically where the sides appear 

 compressed, groove at middle two-fourths, fine toward apex and 

 slightl}^ dilated toward base; sides feebly sinuate in apical two- 

 thirds; apex rather acute and "gradually narrowed; base broadly 

 lobed at middle, lobe rounded, laterall}^ sinuate. 



Sternite transverse, sometimes quite oblong, lobes longer than wide. 

 Each lobe with the external border evenly and broadly arcuate apic- 

 ally, quite straight toward base; internal margin nearly straight; 

 apex narrowly rounded ; surface punctate and setose. Membrane not 

 setose across the bottom of the sinus, the latter rather broad. 



Fefn,ale. — Genital segment trapezoidal, moderate in size, glabrous 

 and setose. 



Valvula (Plate 3, fig. 7). — Dorsal plate oblong, slightly concave, 

 sparsely punctate and setose in apical two-thirds, setse moderately 

 short, semirecumbent ; external border straight or feebly and broadly 

 sinuate; internal margin quite strongly reflexed in apical half, more 



