434 THE NORTH AMERICAN EMPID^—COQUILLETT. vol. xvm. 



what slenderer, but scarcely shorter, than the hind ones. Knob of 

 halteres pale yellow. Wings dark gray, veins and stigma brownish, 

 fourth vein entire. 



Type.—Eo. 3233, U.S.X.M.; one female ; length, 2^ mm. 



Locality. — Massachusetts. 



RHAMPHOMYIA GILVIPILOSA, new species. 



Female. — Black, the halteres yellowish. Head dark gray pollinose, 

 a row of black bristles along each side of the front. Third joint of 

 antenna? broad, two and one-half times as long as wide, the style one- 

 fifth as long as the tliird joint; proboscis one-third longer than height 

 of head. Thorax opaque, dark gray pollinose, marked with four black 

 vitti^, its short pile and bristles yellowish; pleura gray pollinose, its 

 pile white; scutellum bearing only two bristles. Abdomen subopaque, 

 its pile rather long and abundant, yellowish white. Legs destitute of 

 scales and of long pile; front metatarsi slightly thicker than the middle 

 ones, hind metatarsi considerably thicker and one-third longer than the 

 front ones. Wings pale brown, the stigma and veins slightly darker, 

 last section of the fifth vein twice as long as the penultimate section. 



Tyjye.— No. 3234, U.S.N.M.; length, 4 to 5 mm. Collected by Dr. 

 W. A. Xason and Mr. Charles Eobertson. 



Locality. — Illinois. 



NEOCOTA, new genus. 



Same as Eha))q)]iomyia, except that the face is thickly covered with 

 long pile. Third vein simple, not furcate, discal cell complete, sending 

 three veins to the wing margin; anal cell shorter than the second basal, 

 the vein at its ajiex nearly parallel with the hind margin of the wing. 



Type Neocota tveedii, new species, described below. 



NEOCOTA WEEDII, new species. 



Male. — Head black, face and front somewhat shining, face thickly 

 covered with long black pile; eyes very narrowly separated; the inter- 

 val narrower than width of the lowest ocellns; antennas black, first 

 joint three times as long as the second, thickly long black pilose above 

 and below; tliird joint twice as long as the first, broad, slightly tapering 

 on its basal three-fourths, thence rapidly tapering to the apex; style 

 one-third as long as the third joint; i)roboscis scarcely longer than 

 height of head, ])ali)i blackish brown. Thorax black, opaque (mark- 

 ings effaced in the single specimen examined); i)ile of thorax long, 

 abundant, black, that at each end of pleura black; scutellum bearing 

 about twelve black bristles besides .several long black pile. Abdomen 

 depressed, black, opaque, the sides coveied with abundant long black 

 pile; hypopygium rather large, ascending; upper lamelhe very small, 

 the intermediate ones very large, not tapering toward the apex, black- 

 ish brown, long black pilose; central filament yellow, hidden except on 



