330 CALIFORNIA ACADEMY OF SCIENCES. 



die; sides strongly and evenly arcuate; posterior angles viewed Literally 

 slightly produced, slightly acute, not rounded, anterior angles rather broadly 

 rounded; disk strongly convex, very finely and rather sparsely punctate. 

 Scutellum slightly wider than long, triangular. Elytra at b ise as wide as the 

 prothorax, widest at slightly less than one-third their length from the base; 

 sides at base c >ntinuotis in curvature with those of the prothorax, gradually 

 convergent posteriorly, evenly arcuate; together acutely rounded at tip; disk 

 stronglj' convex, much more coarsely punctate than the pronotum, but 

 slightly less so than the head; punctures moderately dense, rather feeble and 

 somewhat asperate, irregularly but evenly distributed; suteral stria rather 

 distinct, finely impressed, beginning at one-third the length from the base; 

 suture about four limes as long as the prothorax. Under surface much more 

 densely pubescent than the upper; abdomen finely, closely and sub-asper- 

 ately punctate. Legs rather long and s'ender; middle and posterior tarsi 

 very slender and filiform, longer than the femora. Length L4-L7 mm. 



California (Anderson VaL, Mendocino Co.). 



Tiiis species is quite common under the bark of decaying 

 logs a.nd appears to be gregarious. It is difficult to discern 

 as it feigns death at first and its color then renders it very- 

 difficult to distinguish from the surrounding powdery refuse 

 of the Scolytides. It has a power of springing even greater 

 in jDroportion to its size than that possessed by the species 



of Eucinetus. , 



CiENOCARA Thom. 



C. OCCidens ii- sp. — Narrowly oval, two-fifths longer than wide; sides 

 strongly declivous; color throughout rather dark brownish-red: integuments 

 polished; p\ibescence coarse, rather long, moderately dense, bright fulvous, 

 conspicuous. Head as wide as long, moderately convex, finely, nearlj'^ evenly 

 and not densely punctate; eyes moderate, rather prominent, very finely gran- 

 ulate, almost divided by a narrow triangular cleft, lower lobe much wider 

 than the upper. Prothorax viewed dorsally widest at the base; sides strongly 

 convergent anteriorly and very feebly arcuate; apex nearly transversely trun- 

 cate; base broadly and moderately angulate, sides straight, one-half wider 

 than the apex; basal angles slightly obtuse and not rounded; disk rather 

 strongly convex in the middle, neaily vertical at the sides, two and one-third 

 times as wide as long, very finely and rather sparsely punctate; punctures 

 round, perforate and with the circumference slightly elevated, slightly more 

 dense along the base; viewed laterally the sides are straight, with the 

 anterior angles very acute and not at all rounded, the basal angles being very 

 obtuse and not rounded. Scutellum very small, as wide as long, ogival, 

 slightly concave, with a few very minute punctures. Elytra at base as wide 

 as the pronotum; sides parallel for two-thirds the length from the base and 



