472 Coleopterological Notices. 



feebly but somewhat broadly reflexed laterally, rather finely, extreiiu'ly 

 densely punctate tliroughout, the punctures forming long longitudinal rugas, 

 less marked and finer toward the middle. Elytra oval and subinfiated, ■widest 

 in the middle, at base feebly emarginate and coarctate throughout with the 

 prothorax, two-fifths wider than the latter and more than twice as long, rather 

 acutely rounded at apex ; disk very finely but evenly and distinctly striate, 

 the stri?e extremely finely punctate, the punctures rather approximate and not 

 larger toward base ; intervals nearly flat toward base, strongly evenly convex 

 posteriorly, very minutely and somewhat densely punctate. Abdomen shining, 

 very finely, somewhat sparsely punctate. Legs long and rather slender. 



Malr. — Sexual characters not determined. 



Length 4.(3 mm. ; width 2.0 mm. 



Lower California (Cape San Lucas). Cab. LeConte. 



A very distinct species which could not possibly be confounded 

 with any other, its rather inflated eljtra, dull, densely punctate 

 integuments and long antenna at once distinguishing it; the epi- 

 pleursB are relatively very wide, resembling somewhat those of 

 gagafcs. The bases of the prothorax and eh^tra are exactly equal 

 in width, the humeri not exposed. 



The unicpie type is probably a male, but exhibits no decided 

 sexual modification. 



It is highly probable that the Arizona specimens, hitherto referred 

 to this species, have been incorrectly identified. 



C. sulcatlis Lee. — Xotihius siilc. : Ann. Lye. N. Y., V, p. 14.'). — Oblong- 

 oval, strongly convex, moderately shining, black ; legs and antenna} rufous ; 

 vestiture as in serinlns, but with the setre still more infinitesimal. Head 

 moderately transverse, the sides near the eyes parallel and straight ; epistonia 

 broa<lly, deeply sinuate ; surface nearly flat, finely, very densely punctate ; 

 upper lobe of eye extremely small and narrow ; antennre robust, rather com- 

 pact, moderately incrassate toward apex ami much sliorter than the head and 

 prothorax together, third joint fully as long as the next two, eleventh narrower 

 than the tenth. Prothorax about two-thirds wider than the head and nearly 

 one-half wider than long ; base rather distinctly wider than the apex, trans- 

 verse, the lateral sinuations distinct ; basal angles nearly right and narrowly 

 rounded ; sides very feebly arcuate ; apex extremely feebly incurvate ; disk 

 widest at about the middle, very feebly explanato near the sides, finely and 

 very densely punctate throughout, the punctures neither muricate nor greatly 

 coalescent. lilijtra at base distinctly narrower than the base of the prothorax, 

 at tlie middle a little wider than the disk of the latter, rather more than twice 

 as long; sides evenly and very distinctly arcuate; disk with very coarse, 

 deeply and roundly impressed strife, which are coarsely, moderately approxi- 

 mately and very feebly punctate ; intervals very convex, equal tliroughout 

 the width, subequal in width to the stri.T, minutely and sparsely punctate. 

 AbdoiiuH sparsely and minutely punctured. Lays rather long. 



