FUNGUS GNATS OF NORTH AMERICA. l6l 



placed near the tip of the costa and sHghtly proximad of the 

 base of the cell R,. petiole of the media 3 times as long as this 

 cell ; a fuscous cinereous fascia extends from R^ nearly to the 

 posterior wing margin where it becomes very faint ; apical third 

 of the wing fuscous cinereous, becoming paler at the apex so 

 that the mark appears like a subapical fascia. Fore metatarsus 

 and tibia subequal. Length of wing 2.2 mm. Halteres pale. 

 Recorded from Georgia and New Jersey. I have also seen a 

 specimen from North Carolina. 



4' Ncocmphcria iuipaticns n. sp. ^ 

 Related to the foregoing but differs in being larger, in having 

 the subcostal crossvein slightly distad of the base of the cell 

 R^ and in having the petiole of the media about twice as long 

 as this cell. 



Female. Length 4.5 mm. Head yellow ; ocellar spot and 

 palpi black, labellse tipped with brown ; occiput tinged with 

 brown; a transverse row of 6 or 8, black, procumbent setae just 

 behind the ocelli. Mesonotum yellow, median and lateral stripes 

 pale brown, the latter more distinct at base of wing; scutellum 

 and mesonotum pale brown, pleura yellow with a longitudinal 

 stripe over the middle and hind coxae ; setae black, most con- 

 spicuous at the base of the wing and in front of scutellum, 2 

 long scutellar setae. Dorsum of the first, second, third, fifth, 

 and sixth segments dark brown ; the posterior and lateral mar- 

 gins of these segments, the venter, ovipositor, and remaining 

 segments, yellow. The dark coloring on the dorsum of the third 

 and fifth segments rather more extended than on the others, 

 covering all but very narrow lateral and posterior margins, ovi- 

 positor slender (fig. 131). Legs yellow, setae and setulae black, 

 tarsi appear more dusky. Middle and hind tibiae each with sev- 

 eral rows of about 8 short black setae in each row ; each claw 

 with a tooth near base ; fore metatarsus and tibia subequal in 

 length. Wings (fig. 96) hyaline, each with 2 broad brown 

 bands, the first from costal cell covering cell R^ and extending 

 to beyond the fork of the cubitus, gradually fading out toward 

 posterior margin ; the second, subapical, leaving the apices of 

 costa and R4+5 clear, extending to anterior branch of cubitus. 

 Costa prolonged beyond apex of R^+g and not reaching tip of 

 wing ; the subcostal crossvein joins the radius slightly distad of 

 the base of cell R^, the subcosta extending a little beyond this, 



