122 CHARLES W. LENG. 



irregular series of fovese on each elytron parallel with the suture; there are 

 also a few fovese in the suhhunieral depression. The labrum is feebly triden- 

 tate. Above there are a few erect hairs at the side of the thorax ; beneath as in 

 hngilabris. There is a feeble depression on the elytra where the middle baud 

 should be, but scarcely any interruption of the punctuation. 

 Length 14 mm. ^.56 inch. 



Habitat. — Maiden, Montana; Jnne 17, 1890. 

 Described from male and female given to me by Mr. Fred. C. 

 Bowditch, wliq has a number of specimens in his collection. 



Var. moiitaiia Lee, 1861, Proc. Ac. Phil., p. 338; Schaupp, I. c, p. 87. 

 Length 12 to 14 mm. ^ .48 to .56 inch. 



Habitat. —JJtah; Nebraska; Montana; Soda Springs, Idaho; 

 Aweme, Manitoba; mountains between Hope and Okanagan, B.C., 

 September; Laramie, Wyoming, early in Spring. 



Black above and beneath, more shining than in longilabris, elytra 

 also less deeply punctate, with only a transverse sinuate, obtusely 

 reflexed white middle band, often wanting. Schaupp states that 

 the labrum of the 9 is black, but this is only sometimes true. The 

 labrum in the specimens I have examined appears to be more evi- 

 dently tridentate, but this also would probably not hold good in a 

 large series. Prof. Wickham expresses an opinion that this form is 

 entitled to specific rank, but it appears better to me to keep it as a 

 variety so as to emphasize its close relationship with longilabris. 



Dr. Williston took this variety at various localities in southern 

 Wyoming, more frequently along hillsides and not especially on 

 l)are ground. 



Typical hngilabris has lately been found in considerable numbers 

 by Mr. Edw. D. Harris at Mt. Desert on the coast of Maine. The 

 island rises to a considerable height, and this species occurred gen- 

 erally on elevated wooded roads and paths in the southern portion. 

 The insects were not shy, but when startled their flight was long, 

 steady, not rapid, and at a greater height than usual with other 

 species. 



C. perviri<lis Schaupp, I.e., 1883, p. 87, pi. 1, fig. 20. 

 Length 13 mm. ^.52 inch. 



Habitat. — Sierra County, Cal. ; Placer County, Cal. July. Also 

 Oregon, Utah and Newfoundland, according to Schaupp's synopsis, 

 but these localities are probably based upon green specimens of 

 longilabris. 



