430 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



rufous, thinly silvery. Abdomen shining brown, without pollen on 

 first three segments; anal segment wholly cupreous-cinereous polli- 

 nose, showing thickly so in oblique view. Legs black, tibiae slightly 

 reddish. Wings subhyahne, tawny at base. Both scales of tegulae 

 reddish-smoky. 



Holotype.—Csit. No. 19453, U.S.N.M. TD 3949. 



AGICUPHOCERA, new genus. 



Genotype. — AgicupJiocera nigra, new species. 



Differs from Cuphocera as follows: Third antennal joint one and 

 one-third to one and one-half times as long as second m both sexes. 

 Abdomen broad, elongate, nearly as long as wmgs, Parafacials 

 broader. No vestige of palpi. Both sexes may at once be distin- 

 guished from Cupliocera by the fact that the second antennal joint 

 is never as long as third; in Cupliocera the second is longer than 

 third in female, and at most equal to third in male. The genus comes 

 near Tr%cho])hora in external characters, but may be known by the 

 broad-elongate abdomen. It is much like Micropalpus m build, but 

 the eyes are bare and the fourth vein is continued in a wrmkle. 



AGICUPHOCERA NIGRA, new species. 



Length of body, 12.5 to 14.5 mm.; of wijig, 10.75 to 12.25 mm. 

 Three males and three females, Chosica, Peru, about 2,800 feet, on 

 flowers of Baccharis, sp., December 4 and 9, 1913 (Townsend). 



Black. Head silvery-white pollinose; parafrontals thinly so, the 

 dark ground color showmg through, giving a faint brassy effect. 

 Epistoma pearly-straw color, clypeus same with sUvery-white bloom. 

 Frontalia shading from luteous anteriorly to testaceous behind. 

 First two antennal joints deep rufous, third joint and arista whoUy 

 black. Occiput cinereous, beard yellowish. Thorax thinly dusted 

 with brassy-cmereous, leaving five ill-defined vittae. ScuteUum 

 testaceous, blackish on base. Abdomen wholly shining, varying from 

 narrowly obscure rufous-brown on sides to deep black. Legs black, 

 front femora pollinose on outside. Wings very faintly tmged with 

 smoky throughout. Tegulae deep fuscous. 



Holotype.— Cat. No. 19451, U.S.N.M., female. TD 4192. Allo- 

 type, male. Paratypes include TD 4191, female; and TD 4193, male. 



NEOARCHYTAS, new genus. 



Genotype. — Neoarchytas inambarica, new species. 



Differs from Archytas as follows: No ocellar bristles. Second 

 antennal joint not longer than thhd, about as long as third in female 

 but shorter than third in male. First and second aristal joints both 

 well elongate. Tliird antennal joint in female of nearly equal width, 

 romided apically, straight on front and hmd borders; that of male 



