412 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



clear light rufous, rest of third joint and all of arista black. Palpi 

 fulvous. Mesoscutum and scutellum silvery, with very f amt tinge 

 of golden; two narrow median and two heavy interrupted outer 

 vittae. Venter and tip of anal segment liglit rufous. Tergum of 

 abdomen shinmg black or dark brown, with basal half of segments 

 two to four silvery-white pollinose. Legs black. Wings nearly 

 clear. Tegulae watery-white. 



Holotype.— Cut. No. 19433, U.S.N.M. TD 4165. 



PROTOGONIOPSIS, new genus. 



Genotype. — Protogoniopsis arida, new species. 



Differs from Protogoniops by the thickly hairy eyes of female, only 

 one row of frontals outside the strong descending row, arista genicu- 

 late and thin on tip, ocellars weak, pair of median marginal macro- 

 chaetae on first abdominal segment. Ocellars divaricate-proclinate. 

 Second aristal jomt very long, over one-third as long as third joint. 

 Proboscis fleshy, not corneous, not as long as head-height. Female 

 front in middle one-half head-width. Two proclinate and two recli- 

 nate fronto-orbitals in female. Parafrontals, parafacials, and cheeks 

 with short black bristles, those of parafacials in four quite regular 

 rows. Facialia sparsely ciliate with strong bristles. Parafacials 

 very wide, wider than facial plate. Frontal bristles descending low 

 and very obliquely. Apical scutellar pair of bristles decussate, next 

 pair extending one-third way over third abdommal segment. No 

 discal macrochaetae on abdomen; first two segments each with 

 median marginal pair. Hmd tibiae pectmate, with long spine near 

 middle. 



Seems allied to GoniopTiana of Australia. 



PROTOGONIOPSIS ARIDA, new species. 



Length of body, 9 mm.; of wing, 7.5 mm. One female. Goatherd 

 Camp, Chosica Canyon, above Chosica, Peru, about 6,000 feet, on 

 bare ground, June 7, 1914 (Townsend). 



Blackish m ground color, silvery to cinereous pollinose; abdomen 

 submarmorate. Face and cheeks dull silvery-whitish; front with 

 brassy tinge. Frontalia and first antemial joint brownish, second 

 antennal joint and palpi pale rufous, thhd antennal jomt and arista 

 black. Thorax silvery, showing four subequal black vittae and a 

 fifth one behind suture. Scutellum testaceous, silvery pollinose, 

 blackish on base. Abdomen silvery-marmorate, with suggestion of 

 brassy in some lights. Legs blackish, middle and hmd tibiae largely 

 rufous. Wmgs nearly clear. Tegulae nearly white. 



Holotype.—Csit. No. 19434, U.S.N.M. TD 4274. 



