Coleopterological Notices. 383 



C pmicticollis Leo. — Ann. Lye. N. Y., V, p. 131. — Slender, parallel, 

 very convex and subcylindrical, pointed behind, subalutaceous, smooth. Head 

 moderate in size, rather finely, densely punctate ; antennae rather short, very 

 robust, the tenth joint distinctly transverse. Prothorax from one-half to two- 

 thirds wider than long, the apex two-thirds as wide as the base, the latter 

 almost transversely truncate, the basal angles but very slightly prominent 

 posteriorly; disk very finely and extremely densely punctate laterally, rather 

 abruptly much more sparsely so along the middle ; lateral margins very 

 minutely and acutely beaded. Elytra distinctly more than twice as long as 

 the prothorax, very minutely, feebly punctate, generally with several extremely 

 feeble and rudimentary longitudinal costae, which are more visible toward the 

 suture and rather narrowly separated, the crests of the costae almost impunc- 

 tate, the intervals rather densely and confusedly so. Abdomen strongly con- 

 vex, sparsely and extremely minutely punctate. Legs very short, slender, 

 generally more or less rufescent. Length 7.0-10.0 mm.; width 3.3-4.2 mm. 



California (San Francisco, Benicia). 



This very peculiar species is one of the smallest of the genus. 

 The elytral costse are generally almost completely obsolete, but 

 even when entirely invisible the punctures are left distributed in 

 very imperfectly defined longitudinal streaks or patches. The hairs 

 growing upon the elytra are rather short, but extend far beyond the 

 limits of the exceedingly small and feeble punctures. It is rather 

 abundant, and appears to be limited to the same region as viatica. 



C altltacea n. sp. — Oval, strongly convex, dull throughout. Head 

 somewhat finely, moderately densely punctate ; antennae robust. Prothorax 

 fully three-fourths wider than long, the apex strongly sinuate and about 

 three-fifths as wide as the base, the latter transverse and broadly, feebly bi- 

 sinuate, the basal angles acute and projecting posteriorly but slightly beyond 

 the broadly arcuate median lobe ; sides rather strongly arcuate anteriorly, 

 generally a little straighter toward base ; disk rather sparsely, very finely 

 punctate toward the middle, the punctures becoming gradually much larger 

 deep, very distinct and moderately dense laterally ; side margins finely but 

 strongly beaded, the bead bordered internally by a coarse deep groove. Elytra 

 fully two and one-half times as long as the prothorax, rather abruptly and 

 acutely pointed behind, densely punctate, the punctures rather large and 

 distinct, very confusedly coalescent toward apex producing a densely rugu- 

 lose appearance, which becomes much less pronounced anteriorly. Abdomen 

 polished, very finely, sparsely punctate. Legs slender. Length 9.0-11.0 mm. ; 

 width 4.8-5.3 mm. 



Nevada (Reno). 



The series of five specimens indicates but slight variability, and 

 the species may readily be distinguished from opaca by its sparser 

 pronotal punctures, and its much more coarsely punctate and rugu- 



