58 Journal New York Entomological Society. [Vol. xm. 



Wings hyaline, stigma pale brown, discal cell opens in the second posterior, sixth 

 and seventh veins very strongly diverging toward their apices. Length 4 mm. 



Kaslo (June 18 and 29, R. P. Currie) ; London Hill Mine, Bear 

 Lake (altitude 7,000 feet, July 21, A. N. Caudell), and Kokanee Mt. 

 (altitude 9,000 feet, on snow August 10, R. P. Currie), British Col- 

 umbia. One male and four females. Type No. 8346, U. S. Na- 

 tional Museum. 



Molophilus nitidus, new species. 



Base of first submarginal cell opposite base of discal cell, body polished. Black, 

 a streak at each humerus and knobs of the halteres yellow, genitalia yellowish brown. 

 Antenna? reaching base of second segment of abdomen, the third and succeeding 

 joints longer than broad. Hairs of body chiefly brown ; claspers consist of a pair of 

 elongated, flattened projections tapering slightly to the apex, devoid of hooks and 

 other processes. Wings grayish hyaline, marginal crossvein slightly beyond base of 

 second submarginal cell, the latter opposite base of first posterior, base of third 

 posterior cell noticeably nearer to base of first submarginal than to that of the second. 

 Length 4 mm. 



Fieldbrook, Cal. A male specimen collected May 18 by Mr. H. 

 S. Barber. Type No. 8347, U. S. National Museum. 



Gnophomyia aperta, new species. 



1 >iscal cell open into the second posterior, hind crossvein at or before base of 

 discal cell. Black, the halteres, trochanters and bases of femora yellow. Antennae 

 reaches base of third segment of abdomen, the third and following joints longer than 

 broad. Thorax opaque, gray pruinose, mesonotum with a darker median vitta not 

 reaching beyond the suture. Claspers short and robust, each with an apical horny 

 hook. Wrings grayish hyaline, apex of auxiliary vein opposite base of second sub- 

 marginal cell, auxiliary crossvein subobsolete, about length of hind crossvein before 

 apex of auxiliary vein. Length 4 mm. 



Kaslo, British Columbia. Two males collected July 11 and iS by 

 Dr. H. G. Dyar. Type No. 8348, U. S. National Museum. 



Limnophila antennata, new species. 



Near quadrata but the antennae of the male reach base of sixth segment of the 

 abdomen. Black, the halteres, genitalia coxa;, trochanters, femora and tibiae except 

 apices of the last two, yellow. Antenna; of male cylindrical but tapering to the apex, 

 the third joint as long as the first two taken together, the following joints with a sparse 

 verticil of short hairs near the middle of each. Head and thorax very thinly grayish 

 pruinose. Wings grayish hyaline, stigma brownish, marginal crossvein near apex of 

 first vein, first submarginal cell almost sessile, the second submarginal usually slightly 

 longer than the first posterior cell, base of discal cell slightly nearer to base of wing 

 than is that of the second submarginal, only four posterior cells, hind crossvein near 

 middle of discal cell. Length 7 mm. 



