COLEOPTEHA. 119 



antennae much paler, testaceous ; integuments highly polished and impunc- 

 tate. Head small, much wider than long; apical margin one-half as long 

 as the width across the eyes, the latter large, rather prominent and more 

 convex behind ; genae very short, strongly convergent posteriorly and 

 slightly more arcuate than the adjoining contour of the eye; interocular 

 surface elevated moderately above the eyes, nearly flat above, having at 

 nearly two-fifths the length from the base two small feebly impressed 

 spongy-pubescent foveae, connected by a parabolic channel which is very 

 strongly dilated and impressed anteriorly, and much shorter than the dis- 

 tance between them ; intermediate surface very broadly feebly and evenly 

 convex ; supra-antennal tuberculations strong, obtusely angulate exteriorly, 

 connected by the feebly arcuate transverse frontal ridge which is distinctly 

 depressed in the middle ; antennae nearly as long as the head and i>rothorax 

 together, rather slender, club long and strong, ninth joint nearly twice as 

 wide as long, short and small, but slightly longer than the preceding joints, 

 tenth much more than twice as long as the ninth and three-fourtliswidi-r, 

 trapezoidal in outline, sides divergent, eleventh scarcely wider than the 

 tenth, as long as wide, very obtuse at tip where it bears a crown of vary 

 dense cinereous setae. Prothorax more than one-third wider than long and 

 much wider than the head ; sides from the apical angles extremely widely 

 divergent and feebly sinuate for a short distance, thence nearly parallel and 

 feebly arcuate to a point slightly behind the middle, thence abruptly very 

 strongly convergent to the basal angles and i-ather strongly sinuate ; edge 

 anteriorly entire, posteriorly minutely and strongly undulate ; apex much 

 less than one-half as long as the pronotal width and scarcely two-thirds as 

 long as the base ; disk very broadly convex, having at one-sixth the length 

 from the apex a small deeply impi'essed median puncture which is slightly 

 elongated, and, at one-third the length from the base, a deep broadly dilated 

 l)osteriorly-angulate naked puncture, connected with the lateral foveae by 

 very narrow distinct but feebly impressed grooves ; the lateral foveae are 

 well within the edge of the pronotum, and are very small, exactly cii'cular, 

 spongy-i^ubescent at bottom and very deeply impressed ; basal margin having 

 two lateral punctures and a very feeble median tuberculate elevation. Elytra 

 at base equal in width to the pronotum ; sides rather strongly divergent 

 l>osteriorly and strongly arcuate ; disk broadly convex, slightly shorter than 

 wide ; sutural striae fine, strong, very close and exactly straight, each elytron 

 also has at base three short impressed striae which proceed obliquely from 

 the basal foveae. Abdomen very short and broad ; third segment as wide 

 as the elytra ; sides nearly parallel ; border wide and nearly flat ; surface 

 broadly convex ; basal segments not carinate. Legs short and very slender. 

 Under surface of the abdomen paler at tip. Length 1.0 mm. 



Columbus, Texas, 4. 



This very fine species is readily distinguished from the preceding 

 by its more transverse pronotum, which is also more acutely rounded 

 at the sides, and by its nearly black color, with paler elytra. 



