4 Journal New York Entomological Society. [Vol. xiii. 



the size and general appearance of C. lanigera, but easily separated by 

 the lack of metallic lustre and the much stouter legs. Described from 

 specimens taken by Dr. Palmer, at St. George, Utah. I have since 

 collected it at the same place, in June. A good series, taken on 

 willows at Green River, Utah, by Professor Arthur G. Smith, is also 

 in my cabinet. Mr. Fuchs has sent me one from Prescott, Arizona. 



C. granicollis Haldeman, Stansbury's Explorations and Surveys of 

 Great Salt Lake, 1852, p. 374. The prothorax is brilliant green, and 

 the extremely coarse, close, confluent punctuation gives it a scabrous 

 appearance. The elytra are reddish brown, very hairy. Originally 

 described from the valley of Great Salt Lake, but specimens are in my 

 collection from northern Colorado, Nevada (Verdi), and Washington, 

 (North Yakima). The Death Valley expedition took it in the Argus 

 Mountains. 



C. puncticollis LeConte, Smithsonian Misc. Coll., 167, 1863, 

 p. 78. Described from New Mexico, whence I have a specimen 

 loaned by Mr. Fuchs. Mr. Liebeck has examined the series in the 

 Horn collection, and writes that the set contains six specimens from 

 Arizona, besides the presumptive type from New Mexico. Some of these 

 specimens have the elytra dark while in the others they are greenish 

 yellow. The prothorax is bright green. The thoracic punctures are 

 umbilicate, of irregular size and closely placed, though not confluent 

 to the extent seen in the preceding species, and the hairs are coarse 

 and sparse. The hairs of the elytra are also coarse and easily re- 

 moved ; they are arranged in comparatively regular series along the 

 suture, the outer margin and the three discal costae. 



C. ursina Horn, Trans. Amer. Ent. Soc, I, 1867, p. 168. The 

 smallest species of the genus, easily recognized by the deeply but not 

 confluently punctured blue-black or greenish black prothorax and red- 

 dish elytra. It is a plumper form than C. granicollis. Occurs at 

 various points in California and the Peninsula. According to Profes- 

 sor Fall, it flies by day and may sometimes be seen in quantities, 

 clinging to cypress hedges. 



