314 Trans. Acad. Set. of St. Louis. 



Prothorax widest at or near the base, more transverse; antennae small and 

 slender 10 



10 — Species occurring west of the Rocky Mountains. Form moderately 

 stout aud convex, rather dull, minutely, densely punctate, with short, 

 dense, fine and decumbent vestlture, dark plceo -rufous In color, the 

 head slightly darker, the abdomen blackish, the segments all nubilously 

 rufescent toward tip; legs very pale, the antennae Infuscate distally; 

 head wider than long, the eyes large but not prominent; antennae 

 feebly incrassate distally, about as long as the head and prolhorax, the 

 subapical joints transverse, the second distinctly longer than the third; 

 prothorax strongly conical, lour-flfths wider than the head, two-flfths 

 wider than long, widest at base, the sides thence strongly converging, 

 evenly but only very feebly arcuate to the apex, the surface not Im- 

 prsssed; elytra equal in width to the prothorax, parallel, only about a 

 fourth longer; abdomen at base evidently narrower than the elytra, 

 the sides thence distinctly converging to the apex, the second and third 

 impressions very feeble. Length 2.76 mm.; width 0.8 mm. Nevada 

 (Reno) renoica n. sp. 



Species of the Atlantic faunal regions to the eastern base of the Rocky 

 Mountains 11 



11 — Metasterual angle pronounced, projecting between the coxae as far as 



the free and aciculate tip of the mesosternal process 12 



Metasternal angle very short and obtuse, scarcely entering the Inter- 

 mesocoxal space 13 



12 — Form stout and strongly convex, slightly shining, the elytra and abdo- 



men doll, the punctures being very dense, less dense anteriorly, very 

 flue throughout, the vestlture short and dense; color blackish-plceous, 

 the elytra uniform and paler, the abdomen blackish, the segmental 

 apices slightly and nubilously paler; legs and the antennae gradually 

 toward base testaceous, the remainder of the latter black ; head sub- 

 orbicular, convex, somewhat transverse, the eyes well developed but 

 not prominent; antennae slender, feebly incrassate distally, attaining 

 basal third of the elytra, the subapical joints slightly transverse, the 

 second somewhat shorter than the third, both considerably elongated; 

 prothorax large, strongly convex, unimpressed, scarcely two-flfths 

 wider than long, four-flfths wider than the head, the sides rather 

 strongly converging, evenly and distinctly arcuate from base to apex; 

 elytra at ba«e scarcely as wide as the prothorax, but, at apex, dis- 

 tinctly wider, scarcely visibly longer; abdomen at base but little nar- 

 rower than the elytra, strongly tapering thence to the apex, the second 

 and third impressions very feeble. Length 3.1mm.; width 0.92 mm. 



Iowa (Iowa City), — H. F. Wlckham lowensis n. sp. 



Form rather stout, very small In size, convex, alutaceous, black, the 

 apices of the rentrals narrowly pale, the fifth more broadly and the 

 sixth entirely; legs and the antennae toward base plceo-testaceous; 

 punctures minute and dense throughout; vestlture fine, short, rather 

 Indistinct; head orbicular, not much inflated basally, the eyes moder- 

 ate, feebly convex; antennae attaining basal third of the elytra, slender 

 basally, rather strongly incrassate toward tip, the subapical joints 

 transverse, the second mueh longer than the third; prothorax four- 



