NO. 2115. NEW NEOTROPICAL MV8C0ID FLIES TOWNSEND. 407 



extending diagonally from root of antennae to lower border of eye. 

 Frontals stopping at root of antennae. Arista thickened only at 

 base, not pubescent. Male front narrowed on posterior half almost 

 to width of ocellar area. The usual two vertical bristles present in 

 female, but male lacks the outer one while the inner one is weak, 

 latter being httle stronger than the prochnate oceUars. Female 

 with five outer fronto-orbitals on each side, the posterior one or two 

 being divergent rather than proclinate. One rechnate upper or 

 inner fronto-orbital in female, none in male. Palpi curved, filiform. 

 Proboscis short and stout. Front very long, peristomal profile 

 shorter but still long, face but httle more than half as long as front. 

 Faciaha bare. Eyes bare. Cheeks rather less than haM eye-height 

 in both sexes. Third antemial joint but httle longer than second in 

 both sexes. Male with median marginal pair of bristles on fhst 

 abdominal segment, female without; second segment in both sexes 

 with median submarginal pair; third segment with mechan discal 

 pair and no median marginal pair, with about four lateral marginal 

 and subdiscal or discal ones; anal segment with anterior discal, mid- 

 dle discal, and posterior discal or submarginal in at least tliree trans- 

 verse rows in female, more in male. Macrochaetae aU strong in 

 female, the frontals and abdominals weaker in male. Scutellum 

 with two strong lateral pairs, and a shorter apical strongly decussate 

 pair. Wings rather broad, extending beyond abdomen. Costal 

 spine extremely long, more than twice as long as small crossvein. 

 AU tarsi of female rather widened and flattened, especially front and 

 middle ones. The tarsal joints in male are rather wide, but less so 

 than in female. Hind tibiae with unequal bristles. Male claws 

 very long, microscopically short-bristled on inner aspect. 



PUNACLISTA SETOSA, new species. 



Length of body, 6.5 to 9 mm.; of wing, 5 to 7 mm. Four males 

 and 10 females, March 6 and 7, 1913; and 7 males and 19 females, 

 May 7, 1914, Oroya, Peru, over 12,000 feet, on bunch grass in Rio 

 Mantaro valley bottom (Townsend). 



Black. Parafrontals and parafaoials silvery-white poUinose, 

 changing to blackish with incidence of light. Clypeus silvery-cream 

 color. Epistoma and cheeks with faint bloom. Occiput, pleurae, 

 mesoscutum, and scutellum shining, with faint bloom. Thoracic 

 vittae very indistinct, only the beginnings of two narrow median 

 ones showing in front. Abdomen shining, with metaUic greenish 

 luster, without bloom. Legs black. Wings subhyahne, grayish, 

 lightly smoky on costal to marguial cells, hght yellowish on basal 

 cells. Tegulae white, margins yellowish-tawny. 



Holotype.— Cat. No. 19429, U.S.N.M., female. Allotype, male. 

 Paratypes include TD 4120, female. 



