REVISION OP ELEODIINI BLAISDELL. 219 



Basdle rather short, not a great deal longer than the apicale, not 

 usually arched nor strongly convex. 



Apicale elongately triangidar, quite evenly convex above, with a 

 linear impression in middle third ; sides feebly arcuate from base to 

 apex, the latter subacute; base rather acutely lobed at middle and 

 scarcely sinuate laterally. 



St('Pnife transverse. Lobes rather small; each with the external 

 border straight and converging from base to apex, the latter rounded, 

 angle introrse and scarcely developed; internal margin straight; 

 surface punctate and moderately thickly setose, setse moderate in 

 length and not extending upon the membrane across the bottom of the 

 sinus, the latter short but rather broad. 



Female. — Genital segment quadrato-trapezoidal, width at base 

 about equal to the length, surface rather conspicuously setose. 



Yalrula (Plate 3, fig. 10). — Dorsal plate more or less irregularly 

 oblong, quite deeply concave, with margins reflexed ; surface very 

 finely and sparsely punctate, set^e rather long and flying; external 

 margin feebly sinuate to slightly arcuate; internal border rather 

 broadly arcuate, sometimes subangulate near base; apical margin 

 evenly rounded and set with quite long flying hairs, angle rounded. 

 Apex short and triangular, acute at tip, finely setose; external angle 

 of the fossa quite thickly set with rather long hairs. Lateral plate 

 visible from above external to the dorsal plate, w^ith submarginal 

 groove between the two and more or less visible. 



Afpcndagc depressed, more or less triangular and rounded at tip, 

 not longer than the apical lobe; surface set with quite long setae. 



Superior pudendal awfithrane reaching to about the middle of the 

 dorsal plate, and longitudinally rugulose. 



Ventrolateral surfaces. — Body rather strongly convex at base, not 

 inflated, glabrous, more or less strongly and transversely concave 

 before the apices; apical moiety sparsely punctate, with seta? rather 

 long. Internal margins of the valves contiguous at base for a short 

 distance. Genital fissure rather wide and fusiform, closed in basal 

 half by the inferior pudendal membrane. 



Salient type-cliaracters. — More or less shining. P]lytra fretiuently 

 more or less depressed, and somewhat narrowly rounded laterally, 

 frequently more or less reddish along the suture; sulci moderate in 

 depth, intervals more or less convex. The apical angles of the pro- 

 notum are acute and more less everted. Say's description is too brief 

 as to the essential characters. 



The following incipient races or forms should be recognized : 



Forma typica. — See salient type-characters. 



Measurements. — Males: Length, 20-25.5 mm.; width, 8.5-10.5 mm. 

 Females: Length, 18-28 mm, ; width, 8.8-12 mm. 



