122 Journal New York Entomological Society. [Voi. vii. 



nanow parallel side margin and very fine apical margin of the pronotum yellow, 

 the female with the head and pronotum black throughout, the latter very finely 

 but rather closely punctate ; elytra very finely and rather sparsely punctured ; ab- 

 domen black throughout ; legs black, the anterior tibi;^ and tarsi pale. Length 

 2.7-3.2 mm. ; width 2.0-2.35 mm. Montana (western) — Mr. Wickham. 



montanica, sp. nov. 



Humeral vitta broad, not inflexed along the basal margin, the pale spots generally 

 deep red 5 



5 — Male with the head and a triangular marginal spot and very fine apical margin of 

 the pronotum pale, the female with the head and pronotum black, the latter with a 

 narrower triangular marginal spot pale, the apical margin not at all paler ; humeral 

 vitta terminating at basal two-fifths ; abdomen margined with testaceous through- 

 out ; legs in great part pale. Length 3.2-3.4 mm.; width 2.35-2.6 mm. Arizona. 



pinguis, sp. nov. 



Male with the head and a narrow parallel lateral margin and more or less fine apical 

 margin of the pronotum pale, the female with the head and pronotum throughout 

 black ; humeral vitta extending to the middle ... 6 



6 — Form very short and broad, the apical pale pronotal margin of the male very dis- 

 tinct, about half as wide as the lateral pale border ; elytral punctures sparse and 

 fine but distinct, the discal pale spot at the middle of the length ; eyes blackish. 

 Length 2.6-3.0 mm.; width 2.15-2.4 mm. Texas (El Paso), lateral is, Muls. 

 Var. A — Similar to lateralis in form, size and disposition of markings, except 

 that the discal spot near the middle is wholly obsolete. Arizona (Grand 

 Canon of the Colorado) — Dr. Prudden omissa, n. var. 



Form less dilated, the pronotal apex exceeding finely pale in the male, the elytral 

 punctures extremely minute and still sparser, the discal spot slightly in front of 

 the middle ; eyes bright green. Length 2.8 mm.; width 2.2 mm. California (San 

 Diego) laevipennis, sp. nov. 



7 — Elytra each with a rounded subapical spot three times further from the suture than 

 from the margin, the spot rather large, circular and reddish ; pronotum finely 

 but distinctly, rather sparsely punctured, having a wide internally rounded mar- 

 ginal spot in both sexes, the head pale in the male and black in the female ; 

 elytra quite strongly and not closely punctured ; legs black. Length 2.7-2.9 

 mm.; width 2. 1-2. 25 mm. New York (Adirondacks) and Indiana \^guexi 

 Muls. ] bigeminata Rand. 



Elytra each with a smaller and generally yellowish irregularly rounded pale spot near 

 the apex, twice as far from the suture as from the margin, and also a larger deep 

 red rounded spot just before the middle and a little nearer the margin than the 

 suture ; head and prothorax black throughout in the female ; punctures smaller 

 than in (^/w^/rt/rt ; the prothorax more transverse. Length 2.7 mm.; width 2.1 

 mm. Northern Atlantic States signata 01 v. 



Elytra each with a very small rounded disco-marginal spot at posterior third of the 

 edge, and another similar in the same transverse line at inner third at posterior 

 fifth viewed vertically, also with a much larger rounded spot just before the 

 middle and just visibly nearer the margin than the suture, the spots deep red and 

 the exterior of the two posterior frequently almost obsolete ; pronotum with a 



