148 Journal New York Entomological Society. [Voi vil 



Form broadly oval, the elytra smooth and polished 41 



41 — Prothorax short, about two and one half times as wide as long ; head wholly or 

 partly red 42 



Prothorax about twice as wide as the median length, the base strongly oblique at each 

 side, the sides evidently discontinuous, only moderately convergent, evenly and 

 feebly arcuate, the punctures minute and sparse ; elytra strongly and closely 

 punctate. Length 2.0 mm.; width 1.5 mm. California ( Sonoma Co. ). 



extricatus, .sp. nov. 



42 — Sides of the prothorax evidently discontinuous, feebly convergent, evenly and 

 feebly arcuate, the punctures strong and close set in the middle, becoming finer 

 and sparser toward the sides ; elytra evenly, finely but strongly, moderately 

 closely punctured, the pubescence fine, infuscate and only moderately con- 

 spicuous Length 1. 6-1. 9 mm.; width 1.15-1.4 mm. California (Monterey to 

 Sonoma) ardelio Horn 



Sides o{ the prothorax nearly continuous, strongly convergent, evenly and distinctly 

 arcuate, the punctures nearly as in ardelio but sparser throughout ; elytra finely 

 but strongly, sparsely punctured, the pubescence rather coarse and distinct ; male 

 with a feebly impressed, elongate-oval area at the middle of the apex of the first 

 ventral, the fifth broadly sinuato-truncate and impressed, the characters nearly as 

 in extricatus throughout. Length I.75-I.S mm.; width 1.3-I.4 mm. Cali- 

 fornia ( San Diego) jacobianus, sp. nov. 



Sides of the jjrothorax strongly discontinuous, very feebly convergent, evenly and 

 feebly arcuate, the surface punctured nearly as in jacobianus ; elytra notably 

 wider than the prothorax, rounded, finely but strongly, rather sparsely punctate, 

 the apical margin red for a distance equal to about a fifth the length of the pro- 

 thorax ; male with a very small, wholly unimpressed and feebly defined glabrous 

 area at the middle of the apex of the first ventral, the fifth broadly sinuato-truncate 

 and impressed ; pubescence of the upper surface coarse and conspicuous. Length 

 1.6 mm.; width 1.2 mm. California (San Diego) jaclnto, sp. nov. 



43 — Species of the Atlantic regions 44 



Species of the Pacific and Sonoran regions, laciistris and ahbrcviatus extending to the 

 eastward as far as Lake Superior 45 



44 — Broadly oval, strongly convex, shining, black throughout, the legs uniformly 

 colored but varying from pale testaceous to blackish ; pubescence rather coarse ; 

 prothorax relatively rather small, finely but strongly, sparsely punctured, very 

 closely near the sides, the sides discontinuous, strongly convergent, evenly and 

 strongly arcuate ; elytra quite coarsely, strongly and sparsely punctured. Length 

 1. 6-2. 3mm.; width I.15-I.7 mm. Atlantic States (trom Massachusetts to North 

 Carolina and Alabama) tenebrosus Muls. 



Narrowly oval, shining, black, the legs bright red; prothorax relatively larger, the 

 punctures extremely minute, sparse and subobsolete, becoming quite large but 

 only moderately close-set near the sides, the latter almost continuous with those 

 of the elytra, strongly convergent and rather feebly, evenly arcuate ; elytra dis- 

 tinctly longer than wide, the punctures quite coarse, strong and somewhat sparse, 

 the pubescence coarse and conspicuous. Length 1. 9 mm.; width 1.3 mm. Li- 

 diana COmpar, sp. nov. 



