June, 1005.] COQUILLETT : DlPTERA FROM NORTH AMERICA. 67 



Kaslo Creek, British Columbia. Thirty-five specimens, collected 

 June 17 and 18 by Messrs. R. P. Currie and A. N. Caudell. Type 

 No. 8376, U. S. National Museum. 



Chasmatonotus hyalinus, new species. 



Yellow, the mesonotum yellowish brown and with a black dorsal vitta, abdomen 

 dark brown, tarsi, tibiae and femora except their bases, pale brown. Body polished. 

 Wings grayish hyaline, somewhat smoky in front of the third vein. Length 1. 5 mm. 



Eureka, Cal. A male specimen collected May 24 by Mr. H. S. 

 Barber. Type No. 8377, U. S. National Museum. 



Family MYCETOPHILID.L. 

 Sciophila fuscipennis, new species. 



Distinguished by the dark brown wings. Black, the femora, tibiae and bases of 

 the tarsi and of the halteres, yellow. Mesonotum polished, its hairs chiefly yellow, 

 the marginal bristles mostly brown, hairs of abdomen chiefly brown. First joint of 

 front tarsi about two thirds as long as the tibire. Wings dark brown, auxiliary vein 

 terminates in the first near middle of the marginal cell, petiole of second posterior- 

 cell subequal in length to the small crossvein, fifth vein forks far before the small 

 crossvein. Length 6 mm. 



Kaslo, British Columbia. Two females collected June 1 and 10 

 by Messrs. H. G. Dyar and R. P. Currie. Type No. 8378, U. S. 

 National Museum. 



Sciophila simplex, new species. 



Near calcarata but the middle coxae are without spines, etc. Black, the mouth 

 parts, bases of antennae, a humeral spot, base of venter, halteres, coxae, femora, tibiae, 

 bases of tarsi, and hind borders of abdominal segments of the female, yellow, hind 

 coxae usually marked with brown. Antennce elongate, the joints beyond the second 

 over twice as long as wide. Body opaque, densely gray pruinose, the hairs black. 

 First joint of front tarsi slightly longer than the tibiae. Wings hyaline, auxiliary 

 vein ends in costa near or beyond middle of marginal cell, petiole of second posterior 

 cell about six times as long as the small crossvein, fifth vein forks slightly before the 

 small crossvein. Length 4 to 6 mm. 



Antoine Mine, McGuigan (July 26, Anderson), London Hill 

 Mine, Bear Lake (July 21, 28 and 29, R. P. Currie and A. N. Cau- 

 dell), and Kokanee Mt. (August 11, R. P. Currie), British Columbia. 

 Ten males and one female. Type No. 8379, U. S. National Museum. 



Sciophila brevivitta, new species. 



Near obliqua, but in that species the median brown vitta on the mesonotum ex- 

 tends to the scutellum, the petiole of the second posterior cell is as long as that cell, 

 etc. Yellow, the upper part of the head, the antennae beyond the fourth joint, three 

 vittae on the mesonotum, three spots on the pleura, the lower part of the metanotum, 



