426 Memoirs on the Coleoptera 



and prothorax, thick, dull in lustre, the antennae inserted behind 

 three-fifths, with slender funicle and small and feeble basal tooth of 

 the club; prothorax less than a third wider than long, the sides sub- 

 parallel and feebly arcuate, rounding in apical third or fourth, also 

 rounding at the immediate base; punctures strong and dense, the 

 median smooth line briefly and faintly traceable centrally; upper 

 profile evenly but rather strongly arcuate; base broadly bisinuate; 

 elytra nearly a third longer than wide, the sides feebly oblique 

 and slightly arcuate to the rather obtusely rounded apex, at the 

 feebly tumid humeri slightly wider than the prothorax, three-fourths 

 longer; grooves moderate, one-half to a third as wide as the coarsely 

 punctato-rugose intervals; white rounded scales beneath dense 

 though slightly separated. Length (d^) 2.7 mm.; width 1.2 mm. 

 Kentucky pusillus n. sp. 



Species of average size or somewhat above, much larger than the two 

 preceding 17 



17 — Prothorax Avidest slightly behind the middle, the sides strongly 

 arcuate 18 



Prothorax widest only very little before the base, the sides subparallel 

 and but feebly arcuate, gradually rounding from about the middle. .19 



1 8 — Body rather narrowly subrhomboid-oval, convex, not shining, black 

 throughout; squamules above small and slender, scarcely discover- 

 able on the pronotum, visible but very inconspicuous on the elytra; 

 beak in the male thick, dull and sculptured, feebly, subevenly arcu- 

 ate and slightly longer than the head and prothorax; antennae 

 inserted at three-fifths, the club rufescent; prothorax barely more 

 than a fourth wider than long, the sides subevenly arcuate through- 

 out, a little more converging apically than basally; apex four- 

 sevenths as wide as the base; surface convex, evenly arcuate above 

 in profile; punctures not very coarse but strong, deep and very 

 dense, the smooth median line narrow, subentire; basal lobe short; 

 scutellum deeply emarginate, with prominent angles, denuded in 

 the type; elytra a fourth longer than wide, the rather strongly 

 oblique sides feebly arcuate to the evenly rounded apex, with the 

 humeral prominences feeble, three-fourths longer than the pro- 

 thorax; grooves not coarse but deep; intervals punctato-rugose, 

 alternating slightly, from three to four times as wide as the grooves; 

 white scales of the under surface narrowly separated. Length (cf) 

 3.5 mm.; width 1.5 mm. Texas (Dallas), — Wickham. A single 

 example rotundicoUis n. sp. 



Body (cf ) oblong, subrhomboid and convex, dull black throughout, the 

 prothorax scarcely a third wider than long, with subevenly but 

 feebly arcuate sides, more converging anteriorly and with small and 

 densely crowded punctures, the squamules of the upper surface 

 small, whitish, fine, sparse and wholly inconspicuous, except at 

 apex and base on the pronotum, more visible on the elytra, the beak 

 feebly arcuate, thick, flat, sculptured and opaque at the sides as 

 usual and barely as long as the head and prothorax, with the an- 

 tennae inserted at three-fifths, or (9) distinctly stouter and more 

 abbreviated, the prothorax almost one-half wider than long, more 



