Juneigoo.] CASEY : On NORTH AMERICAN COLEOPTERA. 119 



ceptibly more at apex than at base, the basal impression deep and rather nar- 

 row, the punctures minute and sparse ; elytra widest before the middle, narrowly 

 rounded at apex, distinctly wider than the prothorax and but two and one-half 

 times as long, the punctures very fine but subperforate and sparse. Length 

 1. 4-1. 5 mm.; width 0.65-0.7 mm. Vermont and Rhode Island to Iowa and 



Colorado ephippiata Zimm. 



Var. A — -Similar to ephippiata in form and size but more narrowly elongate- 

 oval and with the antennae shorter, the elytral spots broadly uniting on the 

 suture, and with the elytral punctures quite coarse, deeply impressed and ap- 

 parently-denser. Washington State (Spokane Falls )...hesperica, v. nov. 



Suboblong oval, convex, much smaller in size, pale and rufo-testaceous throughout, 

 the head blackish, each elytron with a narrower oblique black band from basal 

 third externally to the suture at the middle, and spreading longitudinally on the 

 flanks ; antenna; moderate, less than half as long as the body, the prothorax 

 moderately transverse, but little narrower at apex than at base, broadly rounded 

 at the sides and more closely punctulate than in ephippiata, the basal impression 

 confined to median two thirds of the width ; elytra nearly similar to the preced- 

 ing in form but only very slightly wider than the prothorax and much more 

 closely, though equally finely, punctate. Length I.I— 1.22 mm.; width 0.52- 

 0.5S mm. California to Washington State (Spokane Falls) kvtula Lee. 



4 — Elongate-oval, convex, shining, rufo testaceous throughout, the under surface gen- 

 erally piceous, the elytra shaded with blackish from near the base to apical third 

 or fourth ; antennae slender, half as long as the body, a little shorter in the 

 female ; prothorax moderately transverse, rather strongly narrowed from base to 

 apex, the sides broadly and feebly subangulate at the middle, the base broadly, 

 feebly arcuate ; basal impressions strong, extending almost to the sides, gradu- 

 ally evanescent laterally ; disk only moderately convex longitudinally, the punc- 

 tures strong, moderately coarse and well separated ; elytra at least three times as 

 long as the prothorax and distinctly wider, very much so in the female, more de- 

 clivous toward apex in profile, the sides parallel and almost evenly arcuate ; apex 

 rather obtusely rounded ; punctures fine but distinct, moderately sparse. Length 

 1. 4-1. 6 mm.; width 0.65-0.72 mm. California (Los Angeles to Monterey) 



nubipennis, sp. nov. 



5 — Species of the Pacific coast regions. Body somewhat broadly oval, strongly con- 

 vex, polished, black throughout, the antennae and legs testaceous ; elytra pale in 

 apical two-fifths to half, the margin of the pale area broadly and posteriorly angu- 

 late ; pubescence ashy and distinct ; antennae slender, nearly half as long as the 

 body, shorter in the female ; prothorax moderately transverse, both this and the 

 elytra strongly arcuate in profile as in ephippiata, the apex distinctly narrower 

 than the base, the sides broadly subangulate at the middle, the basal impression 

 strong, not extending beyond lateral fourth or fifth, the punctures fine but deep 

 and quite close-set ; elytra much wider than the prothorax and not quite three 

 times as long, the sides almost evenly arcuate from the humeri to the sutural 

 angles, but little wider before the middle than at base, the apex ogival ; punc- 

 tures very fine but strong and perforate, quite close-set. Length I.3-I.4 mm., 

 width 0.68-0.72 mm. California (Monterey to Humboldt Bay) and Nevada 

 (Reno) post pal lens, sp. nov. 



