316 MEMOIRS ON THE COLEOPTERA 



Body oblong-oval, smaller and much more abbreviated than angustata 

 and with small head, convex, highly polished above in both sexes 

 and viridi-subseneous, black beneath, the metasternum impunctate; 

 head barely half as wide as the prothorax, the eyes well developed 

 but only moderately prominent; antennae nearly half as long as the 

 body in the female; prothorax very nearly one-half wider than long, 

 the sides subparallel, feebly arcuate, more so and arcuately converg- 

 ing anteriorly more apically than in angustata; apex and base as in 

 that species; foveae in general subsimilar but still less definite; elytra 

 much shorter, only a third longer than wide, more rapidly ogivally 

 rounded apically, about as wide as the prothorax; striae even more 

 coarsely impressed, the scutellar longer, less free, the seventh more 

 distinct; intervals convex; hind tarsi subsimilar, slender, the ex- 

 treme apex of each joint similarly blackish. Length (9 ) 5-3 mm.; 

 width 2.35 mm. Lake Superior (Marquette), Sherman. 



flebilis n. sp. 



6 Elytra similarly striate and shining in both sexes. Body stouter 

 than in longula, oblong-oval, convex, deep black, the upper surface 

 with, to completely without, bronze lustre, the elytra scarcely at 

 all less polished in the female; legs black, the tibiae and tarsi rufo- 

 piceous; head moderate though evidently somewhat over half as 

 wide as the prothorax, the eyes well developed, separated from the 

 front by an acute deep groove; antennae rather thick, extending to 

 the thoracic base; prothorax large, two-fifths wider than long, the 

 sides strongly rounding anteriorly, subparallel and nearly straight 

 in rather more than basal half; apex feebly sinuate, with bluntly 

 rounded angles, the basal right, the puncture rather small, sym- 

 metrically placed; impressions very feeble; surface smooth; foveal 

 region punctureless or with very few small scattered punctures; 

 inner fovea feeble, the incised line very short, the outer very feeble, 

 short, oblique; elytra nearly one-half longer than wide, gradually 

 ogival behind the middle, not or very slightly wider than the pro- 

 thorax in either sex; striae moderately fine, sharp, minutely sub- 

 punctulate as a rule, the scutellar moderate, somewhat disintegrated; 

 intervals just visibly convex; anterior tarsi (cf) rather strongly 

 dilated. Length (cf 9 ) 6.5-7.7 mm.; width 2.8-3.2 mm. Cali- 

 fornia (San Francisco to Siskiyou and Humboldt Cos.). Rather 

 abundant, the male less so than the female scitula Zimm. 



Elytra less shining and with finer striae and flat intervals in the female. 

 Body similarly stout and convex, oblong-suboval, strongly convex, 

 deep black, the male with scarcely visible bronzy lustre; under sur- 

 face greenish-black; legs as in the preceding; head half as wide as 

 the prothorax, or (cf ) a little more, the eyes not quite so large or 

 prominent as in scitula, the groove at their base less marked; anten- 

 nae nearly similar; prothorax large, two-fifths wider than long, the 

 sides rounded and converging anteriorly, slightly diverging and very 

 feebly arcuate thence to the base, the angles and basal puncture as 

 in the preceding; apex two-thirds as wide as the base, distinctly 

 sinuate, with rather bluntly-pointed angles; impressions very feeble; 

 foveal regions impunctate or nearly so, the inner fovea feeble, the 



