Till') (ANAUIAN lONTO.MOI.iKJIST. 



the latter more finely and sparsely punctate, especially at the middle. 

 Elytra densely longitudinally reticulato-aciculate, finely striate, the strial 

 punctures fine and much obscured by the sculpture of the interspaces. 

 Antennce short, the club very broad, and constituting rather more than 

 half the length ; eighth joint very thin, lenticular, the third joint as long 

 as the next two together. Clypeal suture completely obliterated. Pro- 

 thorax rather strongly rounded at sides, widest behind the middle, hind 

 angles defined, but very obtuse. Mesosternum nearly vertical between 

 the coxje, carinate. Metasternum coarsely punctate. Legs short, the 

 femora stout. Length, 2.3 mm. 



Flagstaff, Arizona. A single female collected by Dr. Fenyes. 



The sculpture of the elytra will, if constant, at once distinguish this 

 from any other species in our fauna. It is, however, very nearly identical 

 structurally with obsoletu, and is possibly only a remarkable aberration of 

 that species. The sides of the prothorax are a little more rounded basally, 

 the hind angles more obtuse and the punctuation of both head and 

 pronotum a little more pronounced than in obsoleta. 



As remarked by Horn, the subvertical mesosternum oi obliterata and 

 non-carinate mesosternum of ccarinata mark these species as aberrant 

 members of the genus. Horn, however, apparently did not notice that 

 these two species differ furthermore from all others of our fauna in tlic 

 total obliteration of the clypeal suture. Obliterata and sculptiirata, in 

 addition to the subvertical mesosternum, have the outer edge of the front 

 tibiae laminate to a degree not approached by any other of our species. 



CVRTUSA. 



The following very distinct species, most nearly related to blandis- 

 s'nna, may best be made known by the subjoined diagnoses : 



C. blandissima, Zimm. — Elytra strice not impressed, the intervals flat, 

 the ninth (marginal) much wider than the eighth ; metasternum coarsely 

 punctate at sides ; abdominal segments each with a row of coarse, deep, 

 closely-placed punctures along the basal margin ; basal three joints of 

 antennte subequal in length, but gradually diminishing in thickness, the 

 third about as long as the next two. Length, 1.5-2 mm. 



C. supenms, n. sp. — Elytral stritc more closely punctured, finely 

 impressed, more evidently so at sides and apex, where the intervals are 

 in consequence a little convex ; eighth and ninth intervals subequal in 

 width ; metasternum less closely and more finely punctate ; abdominal 

 segments finely, somewhat irregularly punctate; basal three joints of 



