230 MEMOIRS ON THE COLEOPTERA 



three punctures always visible on the narrow surface between the 

 lateral and the very fine marginal stria in those species. Body 

 elongate-oval, moderately convex, piceous-black, with rufous legs, 

 the elytra rufescent narrowly along the apical margin; head only 

 very faintly concave, the supra-ocular lines not prolonged inward 

 anteriorly, the front however with two widely separated oblique 

 lines, derived from such prolongations but now isolated; prothorax 

 distinctly less than twice as wide as long, the converging sides nearly 

 straight, arcuate apically; lateral punctures very fine and remote; 

 basal scutellar fovea distinct; elytra but little shorter than wide, 

 the striae rather fine but deeply impressed, nearly smooth, the fifth 

 tending to become obsolete basally, the outer subhumeral very 

 fine, a third as long as the elytra; prosternal striae long, diverging 

 posteriorly, the included surface nearly smooth, convex; numerous 

 subequal anterior tibial spicules moderate in length; propygidium 

 finely, sparsely punctate. Length 2.0-2.5 mm.; width 1.3-1.45 mm. 

 Texas (Lee Co.). Three examples simplex n. sp. 



Disk of the pronotum not very evidently punctulate medially, having 

 fine and scattered punctures laterally, more evident in wickhami; 

 prosternal striae as in the preceding; mesosternum bisinuate at 

 apex, the marginal and discal transverse striae entire; fifth stria of 

 the elytra entire and distinct throughout, the sutural extending well 

 before the middle, the outer subhumeral short and apical but dis- 

 tinct, the single coarse stria of the inflexed sides subentire; lateral 

 thoracic stria curved inward at apex; propygidium finely, sparsely 

 punctate 5 



5 Cephalic striae not extending inward anteriorly. Body rather briefly 

 oval, the elytra subprominently inflated basally, black when mature, 

 the elytra rufescent externally and apically, the legs rufous; head 

 concave, not evidently punctate; prothorax not twice as wide as 

 long, the evenly converging sides feebly arcuate, rapidly rounding 

 at apex; elytra shorter than wide, much wider than the prothorax, 

 the discal striae not crenate; anterior tibiae finely multi-spinulo- 

 denticulate as in the preceding. Length 1.7-2.1 mm.; width 1.15-1.35 

 mm. Rhode Island to Iowa and Texas. Abundant. 



subrotundus Say 



A Similar in every way to subrotundus, but distinctly less minute in 

 size and having the fifth elytral stria more or less evidently hooked 

 at base. Length 2.35-2.5 mm.; width 1.35-1.5 mm. New York 

 (Catskill Mts.). Three examples frosti Carn. 



Cephalic striae extending inward slightly, though very widely separated 

 on the rather strongly concave front, the punctulation very minute. 

 Body evenly somewhat elongate-oval, convex, smooth and polished, 

 piceous-black, with the elytra gradually rufescent apically; prothorax 

 not quite twice as wide as the median length, the strongly converging 

 sides straight, becoming arcuate anteriorly; lateral stria abbreviated 

 basally, much curved inward at apex; surface with the punctulation 

 very fine, though traceable with a hand lens, the lateral punctures 

 small and sparse, those along the base fine and linearly arranged, 

 the fovea very shallow; elytra with almost evenly rounded sides, 



