292 E. T. CRESSON, JR. 



rainate (Fig. 13). Humeri yellow; scutellum subopake, cinereous 

 tinged ; pleurae and metanotum nearly white pollinose ; halteres sordid 

 yellow. Abdomen subopake; apex of first segment whitish ; second 

 basally, lateral and ventral margins of 2-5, and all of sixth excepting 

 a median stripe, cinereous. Ovipositor yellow, extending to apex of 

 second segment, rather abruptly tapering from its elongate shining 

 black base. Coxae and femora, except apices of latter, black ; tibiae 

 and tarsi, except apices of latter, yellow ; apical and basal joints of 

 post-tarsi in proportion of 1 : 2 ; femoral spines hardly discernable ; outer 

 surfaces of femora and tibiae silvery tinged. Wings hyaline with 

 colored stigma. Length, 3.8 mm.; wings, 4.4 mm. 



From Black Mountain, N. C. (coll. Banks). 



A male from the same locality (Fig. 62) may possibly 

 belong to this female, but I cannot separate it from the males 

 of confratermis Banks. It only has the second section of 

 fourth vein shorter than that of the type of that species (Fig. 

 144). 



14. P. aequus n. sp. 



c? . Bare species. Front and face silvery ; occiput cinereous ; second 

 antennal joint black, third yellow, long white acuminate (Fig. 12) ; 

 proboscis and palpi yellow. Mesonotum opake, brownish pollinose 

 medianly, cinereous and more shining laterally; scutellum subopake, 

 brownish. Pleurae faintly cinereous, metanotum more so ; humeri 

 yellow; halteres yellow with brown knobs. Abdomen opake ; first seg- 

 ment white pollinose and following opake-brown, with apical margins 

 and ventral margins cinereous, sometimes faintly shining, which color 

 is broadly interrupted dorsally, at times the extreme apical margins 

 appear cinereous. Hypopygium (Fig. 64) cinereous, moderately de- 

 veloped and slightly compressed, with cleft having more or less dis- 

 tinct keel ; ventral lobe yellow. Coxae and femora, except extreme 

 bases and apices, black, otherwise legs yellow, but apical joint of tarsi 

 brown ; femora rather slender with weak spines : post-tibia arcuate, 

 slightly thickened medianly; inner surface of post-femora polished. 

 Wings (Fig. 180) decidedly brownish, stigma colored. Length, 5.0 

 mm. ; wings, 5.5 mm. 



9. Similar. Front black, only silvery at antennae; the cinereous 

 apices of abdominal segments more complete, only narrowly interrupted 

 medianly where there seems to be a slight depression on each segment; 

 fifth segment longer than fourth ; sixth only narrowly brown at base. 

 Ovipositor yellow, very short, broadly attached to its large, retracted, 

 grayish-black base. Legs mostly yellow with coxae and upper median 

 part of femora black ; apical and basal joints of post-tarsi in propor- 

 tion of 1:2; claws very long. Wings hyaline with colored stigma 

 equalling or shorter than fourth section. 



