244 CALIFORNIA ACADEMY OF SCIENCES. 



which there is a large rather indefinite area of dark piceous obliquely 

 limited just behind the middle; on each elytron there is also, just before the 

 middle, a small obscure spot of dark castaneous, not attaining the suture, 

 and parallel to the oblique edge of the posterior spot; abdomen dark rufous; 

 entire under surface and legs bright rufo-testaceous; antennae piceous, 

 apical joint paler, first three joints very dark rufo-fuscous, nearly glabrous, 

 remainder finely and densely pubescent; integuments nearly glabrous; highly 

 polished. Head slightly wider than long, convex along the middle, broadly 

 impressed along the sides, obliquely and very feebly bisulcate between the 

 eyes, finely and not very densely punctate; sides behind the eyes short, 

 rectangular, ocelli rather large, very prominent; eyes moderately prominent ; 

 antennas distinctly shorter than the head and prothorax together, feebly 

 incrassate; third joint slender, distinctly longer than the second or fourth; 

 the latter subequal, distinctly longer than the fifth, which is nearly one-half 

 longer than wide; tenth slightly wider than long. Prothorax widest slightly 

 behind the middle, where it is three-fourths wider than long; sides thence 

 rather strongly convergent, strongly and evenly arcuate to the very broadly 

 rounded apical angles, and slightly less strongly convergent and straight to 

 the basal angles, which are obtuse and not rounded; edges finely serrulate; 

 base broadly and very feebly arcuate, four-fifths as wide as the disk and 

 wider than the apex; the latter truncate in the middle between the broadly 

 rounded and slightly advanced latertil apices; disk rather strongly convex in 

 tha middle, where there is a rather deep longitudinal sulcation, limited 

 laterally by two narrow well-defined ridges which terminate at one-third the 

 length from the base; on each side, exterior to these, there are two rather 

 strong, irregular elevations, thence to the lateral edges the surface is 

 broadly explanate and feebly reflexed, broadly and very feebly impressed at 

 the middle of each side; surface very coarsely, deeply and irregularly punc- 

 tate; punctures sparser toward the sides. Elytra one-third wider than the 

 pronotum, at base equal to it in width; sides nearly parallel and somewhat 

 strongly arcuate; together broadly subtruucate behind; exterior angles 

 broadly rounded; disk strongly convex, slightly less strongly declivous 

 behind than on the sides, nearly one-third longer Ihan wide, two and one- 

 half times as long as the pronotum, coarsely, deeply punctate; punctures 

 closely placed in rather well-defined strife; inlervals rather feebly convex, the 

 third and seventh more strongly so; the latter near the humeri very strongly 

 so. Abdomen very short and narrow behind the elytra, having two almost 

 impunctate segments exposed. Legs long and very slender; posterior tarsi 

 short, first two joints slightly elongate, the first slightly the longer; fifth 

 much shorter than the first four together. Length 4 3 mm. 



California; (Humboldt Co. 1). 



The under surface, except the pronotal hypomera, and 

 including the elytral hypomera, is very coarsely and deeply 

 punctate; the abdomen finely subalutaceous and almost 



