^'oi--5- SOME ^'EW DIPTERA — COQVILLKTT. 595 



fourth, fifth vein forking beyond base of the third; length, 4.5 mm. 

 Three male specimens, collected h\ Mr. C. W. Johnson. 



Habitat. — Delaware Water Gap, New Jerse3% 



Ty2)€.—Ciit. No. 5441, U.S.N.M. 



TETRAGONEURA BICOLOR, new species. 



Head black, first two joints of antennse and the mouth parts yellow 

 remainder of antennsi? dark ])r()\vn; thorax and scutellum black, some- 

 what polished, the hairs reddish brown and )>lack; abdomen yellow, its 

 hairs also yellow; halteres, coxa?, femora, and tibiw yellow,^ apices of 

 tarsi brownish yellow; wings hyaline, auxiliary vein ending in the 

 first about midway between the humeral cross vein and base of third 

 vein, fifth vein forking close to its base; length, 3.5 mm. A female 

 specimen, collected by Mrs. A. T. Slosson. 



Ilahitat. — Franconia, New Hampshire. 



Type.— C2it. No. 544-2, U.S.N.M. 



TETRAGONEURA PIMPLA, new species. 



Head black, base of antennae and the mouth parts yellow; body 

 brown, two indistinct vittse and lateral margins of mesonotum, a spot 

 above front coxae, posterior margins of second and following abdomi- 

 nal segments, and the genitalia, yellow; hairs and liristles of thorax 

 black, those of abdomen chiefiy yellowish brown; coxa? and femora 

 yellow, tibite and tarsi brownish yellow, halteres yellow; wings gray- 

 ish hyaline, the auxiliary vein ends in the first nearly midway between 

 the humeral cross vein and base of third vein, fifth vein forks near its 

 middle, at a point almost opposite the union of the small cross vein 

 with the fourth vein; length, 4.5 mm. A female specimen, collected 

 June 16, 1895, by Mr. C. W. Johnson. 



Ilahitat. — Montgomery County, Pennsvlvania. 



TyjM. —Cat. No. 5443 , U. S. N. M. 



SCIOPHILA SUBC/ERULEA, new species. 



Black, polished and strongly tinged with blue, the mouth parts 

 brownish yellow, antenna? dark brown, a yellow spot on each protho- 

 racic spiracle; coxie, femora, and tibia?, yellow, the tarsi brownish 

 yellow, halteres yellowish brown, the apices and peduncles yellow; 

 hairs of mesonotum short, depressed, yellow, those of the sides, head, 

 and abdomen rather long and black; wings densely hairy, grayish 

 hyaline, si brownish spot at the small cross vein and a second beneath 

 apex of first vein; fifth vein forking before base of third, marginal 

 cell about as broad as long; front tibia? noticeably shorter thai^ the 

 first joint of their tarsi, middle femora each bearing a rol)ust, out- 

 wardly directed spine on the under side a short distance before the 

 apex. 



