

NO. 1280. NEW NORTH AMERICAN DIPTERA—COQ UILLETT. \ 1 7 



cah^pteres whitish; leni>th, 11 nun. A male specimen collected by 

 Prof. J. M. Aldrich. 



],[((!> ! tat. — Harrison, Idaho. 



7}/^>r.— Cat. No. {\'l-l<d, r.S.N.^M. 



BRACHYCOMA SETOSA, new species. 



Di tiers from 2)"^''<'"'''>''^ '^^ follows: Vertex two-thirds as wide as 

 either e3'e, sides of face ])earinj)- two irreg'nlar rows of rather short 

 bristles of nearly an eqnal length, antenme fonr-tifths as long- as the 

 face, arista bare, proboscis somewhat elongate, rigid, slender, labella 

 very narrow, alidomen with a pair of marginal bristles on the second 

 segment, second segment of hjpopyginm somewhat opaque, thinly 

 pruinose, wings not brownish along the veins, costal spine nearly as 

 long as the small crossvein; length. 8.5 mm. A male specimen col- 

 lected July 24 by Prof. T. D. A. Cockerell. 



TLihitat. — Beulah. New Mexico. 



Type.—Q^t. No. 62i>7, T.S.N.M. 



GiEDIOPSIS COCKERELLII, new species. 



Black, the face, cheeks, and apices of j)alpi yellow, scutellum red- 

 dish brown; vertex one and one-fourth times as wide as either eye, 

 sides of front thinly grayish pruinose, frontal bristles descending to 

 the arista, an irregular row of bristles outside of them, sides of face 

 on outer half covered with short bristly hairs, the inner half with a 

 row of bristles, sides of face and cheeks densely pale 3'ellowish prui- 

 nose, vibrisspe at a short distance above the oral margin, ridges bristh^ 

 on the lower three-fourths, antennae four-fifths as long as the face, the 

 third joint two and one- half times as long as the second, arista thick- 

 ened on the basal two-thirds, cheeks nearly half as wide as the eye 

 height; thorax thinly gray pruinose and marked with four black 

 vitta^; abdomen short and broad, somewhat opaque, not pruinose 

 except on under side of the fourth segment, dorsum densel}- covered 

 with rather long and nearly erect bristl}- hairs, the first three seg- 

 ments bearing marginal bristles; hind tibi® evenly ciliate on the 

 outer-anterior side and with a much longer bristle in the middle; 

 wings hyaline, the base brown, small crossvein clouded wdth ])rown, 

 third A'ein bearing two bristles near the base, calypteres brown; length, 

 11 mm. A male specimen collected August 20 by Mr. C. H. T. Town- 

 send, and received from Prof. T. D, A. Cockerell. for whom this fine 

 species IS named. 



Ilahitat. — White Mountains, New Mexico (altitude about 8,200 feet). 



Tyjje.— Cut No. 0228, U.S.N.M. 



GiEDIOPSIS FACIALIS, new species. 



Black, the second antennal joint, palpi, apex of scutellum, a spot 

 on sides of second and the fourth abdominal segment yellow; vertex as 



