260 Journal New York Entomological Society. t^'°i- ^X- 



not distinctly flattened in front; second joint strongly transverse, the claw-like 

 appendage moderate in length ; following joints rather strongly serrate, all 

 transverse except the tenth. Head minutely numerously punctulate, moderately 

 shining. Prothorax transversely oval, ^ wider than long, entire surface 

 polished and very finely remotely punctate. Elytra about Ys wider than the 

 prothorax at their point of greatest width, evidently but not very strongly 

 widened behind, surface finely densely punctate and minutely tuberculate, luster 

 dull or but slightly shining. Vestiture as usual. 



Female. — Second antennal joint a little longer than wide, as long as the 

 next two, and in width equal to the fourth ; color as in the ,^ except that the hind 

 femora, and the antennae except at base, are blackish. Length 4-5 mm. (head 

 deflexed). 



The type is from San Diego, Cal., and all the typical specimens 

 before me are from that vicinity. Two examples from Nephi, Utah 

 (Coll. Wickham), differ only in having all the legs black; there are 

 also Utah specimens placed with marg'rmcollis in the Horn collection. 

 Two ?? from southern Arizona submitted by Mr. Schaeffer, and one 

 from the same region in my own collection also have entirely black 

 legs but are otherwise scarcely separable. These agree well enough 

 with the short description of auliciis Er., a Mexican species and may 

 be that, but in the absence of (SS and of authentic examples of aulicus 

 nothing more definite can be said. 



The following varietal form is sufificiently constant and of dif- 

 ferent appearance to merit a name. 



Var. claricoUis, new var. 



Prothorax bright rufous, immaculate, fenaora entirely rufous and tarsi 

 visually so, tibiae duslcy or blackish. Southern California (Pomona, Pasadena, 

 Azusa). 



C. reflexus Lee. Ann. Report, Chief Engineers, 1876, p. 517. 



This is very similar to marginicolUs in size, form and sculpture, and differs 

 chiefly in the more strongly serrate male antennae. The form of the first and 

 second joint is virtually the same in both. The prothorax is entirely black, the 

 margin about the basal angles being narrowly more or less brownish, and the 

 legs are all black. The little tuberculiform elevations of the elytra are quite 

 noticeable as they are in marginicolUs, and by their presence these two species 

 are readily separable from all others with unicolored elytra except nigriceps and 

 bipunctatus, both of which are easily recognized by other characters. The 

 tuberculiform elevations are feebly developed in nigriceps and often scarcely 

 detectable. 



