REVISION OF ELEODIINI BLAISDELL. 189 



Male. — Elongate oblong, somewhat narrow. Antenna' reaching to 

 basal margins of the prothorax; elytra occasionally with sides par- 

 allel or moderately arcuate, dorsum more or less distinctly depressed 

 and quite suddenly obliquely declivous posteriorly. Abdomen moder- 

 ately convex from side to side, broadly and more or less strongly im- 

 pressed on segments one and two, oblique. Anterior femora armed 

 with a strong, moderately acute tooth; tibial spurs similar; the an- 

 terior about equal, rather stout and convexo-concave in transverse 

 section. 



Fetnale. — Elongate oval, robust. Antennae reaching to the pos- 

 terior fourth of the pronotum. Elytra rather broadly oval, nearly 

 vertically declivous posteriorly ; dorsum moderately convex. Abdomen 

 horizontal, evenly and strongly convex from side to side. Anterior 

 femora with an obtuse tooth, sometimes reduced to a mere sinuation; 

 protibial spurs dissimilar (Plate 8, fig. 14), the posterior spur 

 broader, more robust, obtuse, and a little longer than the anterior. 



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



Basale oblong, strongly arched, stout and variable in form. 



Apicale triangular, elongate; sides straight, apex j^roduced and 

 acute; surface evenly convex, with a fine linear, membranous groove 

 extending from the apex nearly to the base, the latter with a broad, 

 rounded lobe at middle and not strongly sinuate laterally. 



Sternite (Plate 4, fig. 15). — Quadrate and strongly chitinized, with 

 an interlobar circular membranous area. Lobes elongate, with the 

 external borders subparallel in basal half and thence evenly arcuate 

 to apex. Apex of each lobe moderately subacute; internal border 

 short, straight to feebly arcuate; surface strongly and densely punc- 

 tate in apical half, setose, setse quite long and very dense at apex, and 

 scattered across the membrane at bottom of the sinus, the latter not 

 conspicuously deep. 



Female. — Genital segment subtriangular, robust, strongly, sparsely 

 punctate, and setose; setse moderately long, semi-erect, and rather 

 evenly distributed. 



Valvula (Plate 1, figs. 13, 15, and 16). — Dorsal plate oblong, with 

 the sides rather strongly reflexed, retracted, and subparallel ; surface 

 concave, sometimes slightly convex within near apex ; internal margin 

 slightly sinuous to subangulate at basal and middle thirds; apical 

 margin more or less evenly rounded, not sharply defined. Siibmar- 

 ginal groove entirely visible from above, limited externally by the 

 margin of the lateral plate which is visible throughout its entire 

 length. Apex short, slightly or scarcely more prominent posteriorly 

 than the appendage, coarsely punctate and setose, seta? not form- 

 ing an apical tuft; external angle of the fossa forming the subapical 

 angle, with sette rather condensed. 



