CoJeox>terological Notices. 475 



disk widest at anterior third, finely and very densely pnnctate thronghout, 

 the punctures shallow and slightly scabrous but not coalescent. Elytra a 

 little wider than the prothorax and more than twice as long ; sides feebly 

 arcuate ; humeri rounded ; base transverse ; disk finely striate, the striae 

 broadly and strongly impressed, very finely, moderately closely punctate; 

 intervals broadly convex, each with a single series of fine, closely placed, 

 asperate punctures, arranged unevenly in the series and generally occupying 

 only the median portions of the interval. Abdomen coarsely and densely punc- 

 tate, more finely so toward apex. Legs moderate. 



Male. — Anterior tibiae very slender, strongly, inwardly bent at the apex and 

 obtusely swollen internally just before attaining the middle ; abdomen feebly 

 flattened in the middle toward base, the fifth segment with a strong, trans- 

 verse, parallel-sided impression. 



Length 4.3-4.8 mm. ; width 1.6-1.8 mm. 



California (southern); Arizona. 



This species, together with crassipes, constitutes a peculiar 

 group, distinguished by the acute and prominent basal angles of 

 the prothorax, coarse abdominal punctuation, and scabrous and 

 asperate dorsal punctures, 



C crassipes n. sp. — Robust, moderately convex, oblong, subparallel, 

 black, rather strongly shining ; legs and antennae rufous ; vestiture as in 

 granulatus but with the stiff, piceous, spiniform setae very much longer. Head 

 transverse ; sides broadly rounded, feebly sinuate anteriorly at the epistomal 

 suture ; epistoma broadly bilobed at apex ; upper lobe of eye very small, 

 broadly oval ; antennae as in granulatus, the eleventh joint much narrower than 

 the tenth. Prothorax fully two-thirds wider than the head, nearly one-half 

 wider than long, the apex very feebly emarginate in circular arc, very slightly 

 narrower than the base, the angles obtuse and very narrowly rounded ; base 

 transverse and straight except toward the sides where it is gradually sinuate, 

 the basal angles being right, not at all rounded and posteriorly prominent, 

 extending but slightly behind the median portions ; sides strongly, evenly 

 arcuate anteriorly, thence convergent and nearly straight to the base ; disk 

 widest at apical third, very finely, rather densely punctate toward the middle, 

 with the punctures distinctly separated, becoming coarser, very densely 

 crowded, shallow and scabrous but not coalescent, laterally. Elytra equal in 

 width to the prothorax and but slightly more than twice as long, ovate, the 

 sides distinctly arcuate ; humeri rounded ; apex acutely rounded, with each 

 apical angle slightly and obtusely produced, forming a short caudal appendage ; 

 disk finely striate, the striae feebly impressed, rather finely but deeply, dis- 

 tinctly and very closely punctured ; intervals feebly convex, with the median 

 portions rather finely, closely, unevenly and asperately punctate, the punc- 

 tures smaller than those of the striae. Abdomen coarsely, densely punctured 

 toward base, more finely toward apex. Legs rather long, the tarsi robust. 



Male. — Anterior tibiae very robust, the inner apical angle produced, broadly 

 and obtusely toothed internally just before attaining the middle; abdomen 



