Coleopterological Notices, IV. 661 



and glabrous. Scutellum very minute, triangular. Elytra nearly 

 as in Eisonyx, broadest just before basal third, where the sides are 

 broadly subangulate, one-fourth wider than the prothorax and a 

 little more than twice as long, the sides strongly convergent behind 

 and feebly arcuate, the apex narrowly subtruncate ; disk with but 

 feeble traces of fine impressed striae, which are abruptly, deeply 

 foveate just behind the basal margin, the intervals very minutely 

 obsoletely sparsely and confusedly punctulate, entirely glabrous ex- 

 cepting a few long recumbent yellowish squamules at the base of 

 the second to fourth intervals. Prosternum narrowly and feebly 

 silicate along the middle, the sides of the sulcus with recumbent 

 yellowish squamules, the coxae separated by less than one-third of 

 their own width. Length 4.3 mm.; width 2.3 mm. 



Kansas (Topeka). Cab LeConte. Still represented by the unique 

 type. 



II. 



2 Oomorphidius laevicollis Lee— Proc. Am. Phil. Soc, XV, p. 

 304 (Microcholus). 



Oval, very strongly convex, rapidly narrowed behind, dark rufo- 

 piceous, the elytra blackish and the legs paler ; body almost gla- 

 brous, rather alutaceous in lustre and minutely reticulate. Head 

 almost impunctate, the impression very feeble ; beak finely, sparsely 

 punctate, moderately long and slender, strongly, evenly arcuate and 

 fully as long as the head and prothorax, the antennae inserted at 

 apical two-fifths, slender, the scape rather long, the first funicular 

 joint robust, clavate, not as long as the next three, the second more 

 slender, two-thirds as long as the first and fully as long as the next 

 two combined, club not large, robust. Prothorax very transverse, 

 twice as wide as long, the sides broadly rounded and gradually more 

 convergent from the base to the apical constriction, which is in the 

 form of a narrow deep groove extending entirely across the dorsal 

 surface, the apex strongly tubulate ; base broadly, feebly arcuate ; 

 disk excessively minutely feebly and sparsely punctured. Scutellum 

 very small, elongate, triangular. Elytra a little longer than wide, 

 two and one-half times as long as the prothorax and equal in width 

 to the latter, with the sides straight and parallel to basal fourth, 

 then, to the narrowly rounded apex, strongly conical with the sides 

 nearly straight; disk with very fine, nearly obsolete striae, each 

 terminating at some distance behind the basal margin in a mode- 



