CALIFORNIA ACADEMY OF ?^CIEXCH>. U 



entire genus, but tire more conspicuous in those species hav- 

 ing very dense sericeous abdominal pubescence. This spe- 

 cies is very distinct being distinguished liy its size and very 

 dense punctuation, also by the rather more transversely 

 oval pronotum with broadly rounded anterior angles. 



5— C. COntractum "• sp.— Slender, black; elytra slightly paler, piceons, 

 sliglitly rufous at the apices; legs pale browuisli-testaccous, tarsi paler, 

 brownish-ilavate; antenuio dark rufo-testaceous throughout; maxillary palpi 

 piceous-brown; eutire under surface same; pubescence of the elytra mode- 

 rately dense, very short and fine, that of the abdomen much longer, coarser 

 and denser, that of the head and pronotum excessively fine, rather sparse 

 and not conspicuous. Head moderate; sides extremely feebly convergent 

 l)osteriorly and very slightly arcuate; base truncate, angles narrowly rounded; 

 surface slightly longer than wide, moderately convex, rather coarsely and 

 somewhat sparsely punctate, with a narrow median impuuctate line; two setig- 

 erous punctures at the apical margin of the epistonia large and prominent ; an- 

 tenna} slender, nearly as long as the head and prothorax together; basal joint 

 scarcely as long as the next two together, second two-thirds as long as the 

 third and slightly longer than the fourth, tenth about as long as wide, 

 eleventh ovoidal, acuminate, slightly shorter than the preceding two com- 

 bined. Prothorax quadrate, distinctly wider than the head; sides parallel 

 and distinctly arcuate; base rather broadly and strongly arcuate, slightly 

 more strongly so than the apex; apical angles rather narrowly rounded, basal 

 very broadly so; disk transversely and moderately convex; median line obsolete, 

 or very nearly so; very finely, feebly and densely punctate; punctures very 

 feebly impresstd and s parated by their own widths. Elytra at base very 

 slightly wider than the pronotum; sides nearly parallel, feibly arcuate, dis- 

 tinctly more strongly so near the apices; together broadly, angularly and 

 very feebly emarginate at the apex; disk convex and declivous at the sides, 

 depressed in the middle, feebly impressed on either side cf the feebly elevated 

 suture, scarcely one-fourth longer than wide, one-third longer than the pro- 

 thorax, rather coarsely and densely punctate; punctures much finer and more 

 asperate near the apex. Ahdomen slightlj' narrower than the elytra; sides 

 parallel; sides of the fifth segment strongly convergent posteriorly; surface 

 rather convex, transversely strigate in very di -connected wavy lines of 

 moderately coarse asperities. Lcg.-i slender; first joint of the posterior tarsi 

 nearly as long as the next two together. Length .'3.2-.").u mm. 



Santa Clara Co., 9; Monterey Co., 4; Humboldt Co., 1. 



In the specimen from Humboldt the elytral ])unctuation 

 is decidedly coarser aud denser. The type is a male, the sixtli 

 segment being slender and sinuate at ajiex; the sinus is 

 rather narrowly rounded and al)Out four times as wide as 



