94 MEMOIRS ON THE COLEOPTERA 



Basal foveae deep and sublinear, as in all the preceding species 12 



II Form elongate and rather narrow, convex, black, the anterior parts 

 with strong aeneous-green lustre, shining medially but roughly scab- 

 rous toward the sides; elytra with the fasciae of pale lines much ex- 

 tended, leaving a biarcuate black fascia about the middle, also some 

 dark area on the suture expanded near apical fourth; a small dark 

 spot surrounding the anterior fovea is also evident; under surface 

 black, the epipleura piceo-rufous, the legs rufous; head large, but 

 little narrower than the prothorax, with very prominent eyes, the 

 sides of the front rugose, the sulci rather deep; antennae moderate, 

 fuscous, very gradually testaceous basally; prothorax barely two- 

 fifths wider than long, the parallel sides but feebly arcuate, becom- 

 ing broadly, distinctly sinuate basally; impressions almost obsolete, 

 the stria subentire; carina moderate; elytra oblong-oval, parallel, 

 with evenly arcuate sides, very gradually rounding at the humeri, 

 more than one-half longer than wide, about one-half wider than the 

 prothorax; striae not very fine and somewhat impressed, entire and 

 deep to the apex; punctures small but deep and very close; seventh 

 stria as strong, deeply impressed and entire as the others; foveae 

 rather before basal and apical third. Length (cf 9 ) 3.65-4.7 mm.; 

 width 1.25-1.7 mm. California (northern coast regions) and Ne- 

 vada (Reno). Abundant variolosum Mots. 



Form not quite so elongate and much smaller in size, the anterior parts 

 black, with strong green lustre, alutaceous, not so roughly scabrous 

 laterally as in the preceding; elytra with the pale coloration pervad- 

 ing the entire surface, and but feebly shaded in the blacker areas 

 alluded to under variolosum; under surface black, the epipleura and 

 legs pale flavo-testaceous; head much smaller, with less prominent 

 eyes, the sulci narrower and deeper; antennae not so long and more 

 slender, fusco-testaceous, gradually clearer basally, the medial joints 

 barely more than twice as long as wide; prothorax more evidently 

 wider than the head, two-fifths wider than long, formed nearly as 

 in the preceding but with the large shallow foveae less coarsely scab- 

 rous and exhibiting traces of a short, deeper linear depression at the 

 middle, the carina longer; elytra shorter, one-half longer than wide, 

 two-fifths wider than the prothorax, the parallel sides less arcuate, 

 more rapidly rounding about the humeri; striae finer, not impressed, 

 entire, the punctures small but more distinct and much less close- 

 set; anterior fovea more distant from the base. Length (of 9 ) 3.0 

 -3.8 mm.; width 1.15-1.35 mm. Nevada (Elko YVickham; also 

 from an unrecorded locality in the state) umbratum Lee. 



12 Body narrow, convex and stibcylindric, strongly shining, the head 

 only very slightly alutaceous, black, with aeneous lustre, the elytra 

 piceous, with a nubilous basal spot and another, external, near apical 

 fourth, testaceous; under surface piceous-black, the epipleura fla- 

 vate, the legs rufous; head four-fifths as wide as the prothorax and 

 as wide as an elytron, the eyes moderately prominent, the sulci 

 rather narrow and sharply defined; antennae fuscous, gradually 

 obscure rufous basally, three-fourths as long as the elytra, the medial 

 joints between two and three times as long as wide; prothorax barely 



