Dec, I9I2.] Fall: North American Collops. 273 



C. balteatus Lee. Proc. Acad. Nat. Sci. Phila., 1852, p. 230. 



This is a rather large species, of about the same size as bipunc- 

 taUis. I have seen but few specimens, and these exhibit ahnost no 

 variation. The elytral spots are so large that it may best be described 

 as having the elytra blue with a narrow border and a transverse 

 fascia at anterior third, yellow or rufous. The basal antennal joint 

 in the cf is thick, subtriangular, scarcely longer than wide, and sinuate 

 on its posterior face ; the second joint is more narrowed apically than 

 in any other species known to me, and is very plainly longer than 

 wide. The legs are almost entirely black, the venter heavily maculate. 



It is known to me only from Texas. 



C. versatilis, new species. 



Male. — Head and thorax black, labrum and antennas pale ; elytra reddish 

 yellow each with a small basal and a larger subapical spot dark blue ; body 

 beneath black, the margins of the ventral segments narrowly rufous ; legs black, 

 all the tarsi and the front tibias pale, middle tibiae dusky. Basal joint of antennae 

 sinuate posteriorly, second joint fully H wider than long, outer joints feebly 

 serrate. Head shining, sparsely very finely punctate posteriorly, the punctures 

 a little larger and closer anteriorly. Prothorax Yz wider than long, sides feebly 

 arcuate and subparallel in middle two-thirds, disk polished and very minutely 

 and remotely punctulate medially, becoming somewhat abruptly dull and a 

 little uneven in about the lateral fourth. Elytra finely punctate, not distinctly 

 scabrous, the punctures separated by from one to two times their diameters. 

 The basal spots are strictly basal, rounded behind and attain both the side 

 margin and the scutellum. 



Female. — Similar to the male, the antennae of the usual type in this sex, 

 the clypeus and the middle tibiae pale. Length 4-5 mm. 



The male and female types described above were taken at Cole 

 in northern California by Dr. Fenyes. With them I place specimens 

 from Lake Co., Contra Costa Co., Sonoma Co., Santa Rosa (Rick- 

 secker), Mokelumne Hill, Alameda Co., Pomona and Pasadena in 

 California; Oregon; City Cafion, Utah; and Arizona. 



If the specimens united under this name are conspecific, and I 

 have no doubt of this, the species is an exceedingly variable one in 

 coloration. In two of the three Lake Co. ones the prothorax is 

 entirely pale, in the third pale with a discal black spot, and in these 

 the legs vary from entirely pale except the hind femora to entirely 

 black except the tarsi. In the Utah specimens the prothorax is black 

 with a narrow pale margin ; in one from Contra Costa Co., Cal., there 



