tarsus thicker and more strongly bent. In the female the tarsi are narrow with 

 joints 1-3 equal in width. Length 3.6 to 4 mm.; width 1.95 to 2.15 mm. 



The type'of this species is a male taken by the writer at Tyngsboro, 

 Mass., 7-21-06. Similar examples from Bennington Co., Vt, are in 

 the Roberts and Sherman Collections. Mr. Sherman has also taken it 

 at Starr Lake, 4,890 feet, and at 5,000 feet on Mt. Washington, N. H., 

 and at Marquette, Mich. In the series of dispar in the Le Conte Col- 

 lection are two examples of this species, one from "N. H.", the other 

 bearing the gray color disk which signifies Lake Superior. 



C. nigrescens sp. nov. 



Two examples (c?$)from California, are very close to the preceding, but seem 

 to be distinct. They are of a slightly more elongate elliptico-oval form (more 

 obtuse at apex) and of very dark color; the head and prothorax black, elytra 

 piceous brown, femora broadly infuscate at middle, the tarsi blackish. The 

 sexual characters of the male tarsi are as in compar, but the large second joint 

 is even slightly more developed. Length 3.5 to 4 mm.; width 1.8 to 1.95 mm. 

 The smaller measurements are those of the female. 



Mono Co., California (Blaisdell), type c?. 



C. artus sp. nov. 



Narrowly subelliptical ; fuscotestaceous above, the middle of the front, disk of 

 prothorax and elytral margins narrowly, somewhat paler; tarsi and outer 

 joints of antennae dusky; body black beneath, integuments polished throughout. 

 Head and thorax finely sparsely punctate, elytra more closely and less finely 

 punctured, the usual three series of coarser punctures very irregular, visible 

 in basal half. Body beneath rather coarsely, not densely punctate at sides. 

 Length 2.9 mm.; width 1.35 mm. 



Mono Co., California (Blaisdell.) 



The type and only specimen at hand is a male, but the tarsi are quite 

 narrow, the sex being revealed by the visibly modified front claw. The 

 small size, exceptionally narrow form and narrow^ male tarsi are the 

 diagnostic characters to be relied upon in this species. 



C. sharp! VdBr. 



Oval, strongly elongate; head black with pale spot on the vertex; thorax rufo- 

 testaceous with front and rear margins infuscate, a small discal spot behind the 

 middle, usually confluent with the dark margin; elytra brownish fuscous or 

 fuscotestaceous, usually nearly uniformly so, sometimes, however, with the 

 margins paler, showing vaguely the outlines of the broadly suffused discal 

 markings; beneath black, legs and antennae % pale, the latter with the outer joints 

 slightly dusky. Integuments polished, both above and beneath. Punctuation 

 fine, not close, nearly uniformly distributed on head and thorax, a little coarser 

 and denser on the elytra, the punctures gradually closer apically; discal lines 

 of coarser punctures distinct and quite regular. Metasternum and sides of 

 abdomen at base coarsely closely punctate, coxal plates somewhat less coarsely 

 so. Length 3.7 to 4.3 mm.; width 1.8 to 2.1 mm. 



The type of this species is the lutesccns of Sharp's Monograph, 

 which was doubtfully identified by him as Le Conte's species, the de- 



9 



