330 Trans. Acad. Sci. of St. Louts. 



rather strongly shining, the punctures minute and rather sparse, more 

 distinct and closer on the elytra; pubescence erect but rather sparse 

 and not conspicuous; head strongly impressed at the middle of the ver- 

 tex, the median line posteriorly finely, distinctly impressed to the base; 

 eyes only moderately convex; antennae as usual slightly longer than the 

 head and prothorax, the latter two -fifths wider than the head, short, 

 fully one-half wider than long, tha sides nearly parallel and subevenly, 

 distinctly arcuate throughout, the surface finely, feebly, transversely 

 Impressed before the middle of the base, the impression more distinct 

 at its extremities; elytra fully two-fifths wider and longer than the pro- 

 thorax, the humeri broadly exposed at base; abdomen parallel, as wide 

 as the elytra, with the sides slightly arcuate, strongly shining. Length 

 1.5 mm.; width 0.56 mm. Kansas (McPherson), — W. Knaus, 



atra n. sp. 



Body deep black, except the apex of the abdomen, which is rufo-testa- 

 ceous, the elytra and basal part of the abdomen perhaps just visibly 

 plcescent; legs and antennae pale, the latter infuscate distally. Reticu- 

 lation very fine and rather feeble, the surface distinctly shining; pu- 

 bescence erect but rather sparse and not conspicuous, the punctures 

 very minute, not obvious even on the elytra; head with a large elongate 

 impression on the vertex which is continued narrowly and feebly to the 

 base of the occiput; eyes distinctly prominent; antennae extending to 

 basal third of the elytra; prothorax barely a third wider than the head, 

 about two -fifths wider than long, the sides parallel and nearly straight 

 in basal half, becoming strongly arcuate and converging in about apical 

 half to the apex, the surface distinctly Impressed transversely before 

 the middle of the base; elytra rather more than a third wider and longer 

 than the prothorax, the humeri distinctly exposed at base; abdomen 

 about as wide as the elytra. Length 1.35 mm.; width 0.46 mm. Can- 

 ada (Ottawa), — W. H. Harrington postica n. sp. 



Body varicolored, never in great part deep black 12 



12 — Pronotal punctures fine and normally close-set but strongly asperu- 

 late and distinct, the interspaces smooth, alutaceous and extremely 

 minutely and obscurely sculptured, not distinctly mlcro-reticulate. 

 Form rather slender, convex, alutaceous, the prothorax plceo-rufous, 

 the head, elytra and abdomen, except toward base, black, the legs and 

 antennae pale, the latter black distally ; pubescence rather short, stiff 

 and inclined, not conspicuous; head with a small deep rounded impres- 

 sion at the middle of the vertex, the eyes distinctly prominent; antennae 

 scarcely longer than the head and prothorax, very moderately incras- 

 sate distally; prothorax two-fifths wider than the head and two-fifths 

 wider than long, the sides evenly arcuate, converging apically, sub- 

 parallel basally, the surface rather strongly, transversely impressed 

 near the base at the middle; elytra about a fourth wider and a third 

 longer than the prothorax, the humeri evidently but not broadly ex- 

 posed at base, narrowly so for the present section, the sides slightly 

 diverging; abdomen parallel with feebly arcuate sides, as wide as the 

 elytra, feebly narrowed toward tip. Length 1.6 mm.; width 0.5 mm. 

 Virginia (Fort Monroe) virginica n. sp. 



Pronotal punctures very fine and Indistinct, not strongly asperulate, the 



