1895. 



PEOCEEDINGS OF THE NATIONAL MUSEUM. 405 



Types. — Xos. 3174 and 3175, U.S.N.M. ; male and female; length, G mm. 

 Localitij. — North Carolina. 



EMPIS CAPTUS, new species. 



Male. — Differs from the male of ^. ravida only as follows: First two 

 aiiteuual joints reddish; first joint only slightly longer than the second, 

 the third three times as long as the first, tapering very gradually 

 to the apex ; scutellum bearing only two bristles ; dorsum of abdomen 

 brownish polliuose. Hypopygium very large, the filament robust, dis- 

 engaged, arcuate, compressed and dilated near its apex; on base of 

 upper side of each upper lamella is a low wart-like process, and just 

 outside of this is a backwardly i)rojecting fleshy process bearing on the 

 middle of its under side a backwardly directed black spine, whose tip is 

 even with that of the process from which it springs; below this process 

 is a second, yellow, fleshy, upwardly directed process. Wings hyaline. 



Female. — Differs from the male in that the proboscis varies from two 

 to four times as long as height of head; femora and tibia> of middle and 

 hind legs ciliate on each side with rather short black scales and bris- 

 tles, the scales sparsest on the middle tibiae 



Ti/2)es.—l^os. 3176 and 3177, LT.S.N.IM.; length, 5 to 7 mm. Three 

 males and four females in the Museum collection. 



Locality. — North Carolina and Georgia. 



EMPIS COMPTA, new species. 



Female. — Head black, gray pollinose; antennae on two basal joints 

 brown, the third black, narrow, elongate, style one-sixth as long as the 

 third joint; proboscis over twice as long as height of head, palpi brown. 

 Thorax and pleura black, opaque, gray pollinose, thorax marked with 

 four blackish-brown vittre ; pile in front of halteres black ; scutellum 

 blackish, its apex brown, bearing four bristles. Abdomen on base of 

 segments yellowish-brown, on apex broadly light yellow, seventh and 

 eighth segments and the two anal lamellie, wholly brown; pile of 

 abdomen sparse, yellowish, no fringe of long black bristles near hind 

 margin of any of the segments. Legs slender, destitute of a fringe of 

 scales, yellow, including the coxjtb; tarsi toward the apex brown; meta- 

 tarsi of nearly an equal thickness, the hind ones slightly longer than 

 the others. Knob of halteres light yellow. Wings hyaline, stigma 

 wanting, veins light brown, no stout bristle on costa near its base (first 

 submarginal cell closed in one wing, broadly oi)en in the other). 



Type. — No. 3178, U.S.N.M.; length, 3^ mm. A female received from 

 Mr. Charles Kobertson. 



Locality. — Illinois. 



EMPIS AVIDA, new species. 



Female. — Head black, bluish gray pollinose; antennre brown on the 

 two basal joints, the third black, short, broad, tapering gradually to 

 the tip, style over one-lialf as long as the third joint; probovscis three 



