﻿106 Journal New York Ent. Soc. [Voi in. 



than the antenna;. Thorax black, yellowish gray pollinose, marked with four black 

 vittse ; three postsutural and three sternopleural macrochset^, scutellum bearing two 

 long marginal pairs ; scutellum grayish black, purer black on the sides. Abdomen 

 light yellow, the apex reddish yellow, a dorsal vitta and base of fourth segment 

 black ; second segment with a marginal pair of macrochKtce, the third and fourth 

 each with a marginal row. Legs yellow, tibise tinged with brown, tarsi black ; pul- 

 villi one-third as long as the last tarsal joint. Wings hyaline, a bristle at base of 

 third vein, the others bare; costal spine minute, apical cell open, ending the length 

 of the small crossvein in front of the extreme wing-tip. 



^ — Differs from the ^ as follows : Front nearly as wide as either eye, two 

 pairs of orbital bristles, third antennal joint one and one-third limes as long as the 

 second, abdomen reddish yellow, middle of first segment and narrow vitta on the 

 second, brown. Length 6 mm. 



Bucks and Delaware Cos. , Pa. (Aug. 19, 1892, and June 25, 1893; 

 C. W. Johnson). One specimen of each sex, 



Argyrophylax rostrata, sp. nov. 



^ — Black, the palpi, first two joints of antennx, scutellum except at base, 

 apex and sides of abdomen except hind angles of the third segment, yellow. Front 

 at vertex nearly as wide as either eye, frontal bristles descending to tip of second an- 

 tennal joint, three in each row curving backward, a row of short macrochsetas be- 

 tween them and the eyes, extending to base of antennse, no orbital bristles, anterior 

 ocellar bristles well developed, sides of front grayish pollinose ; antennse slightly 

 over three-fourths as long as the face, third joint one and one-half times as long as 

 the second; arista thickened to the middle, the penultimate joint one-half longer than 

 broad ; face in profile slightly concave, the sides bare, white pollinose, ridges bristly 

 on the lowest fourth ; proboscis slender, rigid, the portion beyond the basal articula- 

 tion as long as height of head, labella horny, not thicker than the proboscis proper. 

 Thorax gray pollinose, marked with four black vittse ; four postsutural and four sterno- 

 pleural macrochjetK, scutellum bearing three long marginal pairs and a short apical 

 one. First two segments of abdomen each bearing a marginal pair of macroch^tre, 

 third with a marginal row, the fourth with three rows. Hind tibise densely and 

 evenly ciliate outwardly, with a bristle less than twice as long near the middle ; pul- 

 villi longer than the last tarsal joint. Wings hyaline, tinged with gray at the base, 

 third vein bearing three' bristles at the base, the others bare, costal spine minute ; 

 calypteres white. Length 10 mm. 



Mobile, Ala. (Oct. 22, 1894; C. W. Johnson). A single specimen 

 in Mr. Johnson's collection, 



Qymnoprosopa fulvicornis, sp. nov. 



$ —Black, the antennas and palpi yellowish. Front wholly grayish pollinose, 

 frontal bristles descending to middle of second antennal joint, near the middle the 

 two rows are four times as widely separated from each other as from the nearest 

 eye; antenna nearly as long as the face, third joint four times as long as the second ; 

 arista thickened on the basal two-thirds; sides of face and the ridges bare. Thorax 



