6 CALIFORNIA ACADEMY OF SCIENCES. 



Described from the male, in wliicli the sixth segment is 

 narrow and evenly sinuate at the 'tip, the sinus being evenly 

 rounded and about four times as wide as deep. The species 

 is one of the most distinct of this portion of the genus, and 

 is widely extended in distribution throughout the middle 

 coast region; it is distinguishable at once by its very dense 

 sculpture, dark color and very dense pubescence of the pos- 

 terior portions of the body. 



2— C. COntinens u- sp.— Moderately robust, rather depressed; head and 

 abdomen black, the latter paler and browaish-ferrnginous at apex; piothorax 

 aud elytra dark castaueous-brown, the latter slightly the paler; under surface 

 paler, castaueous; legs brownish-flavate; antennae rufo-fuscous thr-oughoutj 

 maxillary palpi piceous-black; head and pronotum almost glabrous, having a 

 few erect black setas; elytra and abdomen finely and moderately densely pub- 

 escent. Head moderate, slightly longer than wide; sides parallel and feebly 

 arcuate; base truncate, basal angles distinctly rounded; eyes small, moder- 

 ately prominent, in great part visible from above, one and one-half times 

 their own length from the base; occipnt moderately convex, front fiat an- 

 teriorly; punctures fine, round, shallow, sub-anuular and extremely dense; 

 antennae nearly as long as the head and prothorax together, slender, not in- 

 crassate; basal joint as long as the next two together, second much shorter 

 and more oval than the third, tenth longer than wide. Prothorax large, 

 nearly as long as and very slightly wider than the head; sides just visibly 

 convergent from apex to base and very feebly arcuate; base broadly arcuate, 

 sub- truncate in the middle; apex broadly arcuate, as strongly so as the base, 

 narrowly and very feebly emarginate in the middle; apical angles narrowly 

 but distinctly rounded, basal more broadly so; disk transversely and moder- 

 ately convex, quadrate, very finely, evenly and strongly rugulose, the very 

 fine median line being entirely obsolete in the ai)ical half. Elytra at base 

 just visibly wider than the pronotum; sides parallel, very feebly arcuate pos- 

 teriorly; together broadly and just visibly iucurvate at the apex; disk trans- 

 versely and feebly convex, \evy feebly impressed along the suture which is 

 very slightly and narrowly elevated, oue-1'ourth longer than wide, slightly less 

 than one-half longer than the pronotum, very minutely densely and evenly 

 punctate; punctures sub-asperate and slightly sparser near the apices. .46- 

 dotnen transversely strigate with very fine wavy lines of minute closely- 

 placed asperities. Legs moderate; anterior tarsi very feebly swollen; first 

 four joints of the posterior decreasing uniformly and very rapidly in length, 

 first slightly shorter than the next two together, fourth very slightly longer 

 than wide; claws very small. Length 3.4 mm. 



Contra Costa Co., 2: Napa Co., 1; San Diego, 2, 



