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of orbital bristles in the female, none in the male, frontal bristles 
descending below middle of second antennal joint, cheeks one- 
fourth as wide as the eye-height, facial ridges bristly on the lowest 
fourth, antenne four-fifths as long as the face, the third joint 
one and one-half times as long as the second, arista thickened on 
the basal fourth, the penultimate joint shorter than broad; thorax 
gray pollinose, marked with three black vitti, three postsutural 
machrochetie; abdomen thinly gray pollinose and with blackish 
reflecting spots, last three segments bearing discal and marginal 
macrochete; middle tibie each bearing two or more macro- 
cheetie on the front side near the middle, front pulvilli of male 
as long as the last tarsal joint; wings hyaline, third vein bear- 
ing one or two bristles near the base; calypteres white; length, 9 
mm. Norfolk, Va., and Kirkwood, Mo. Four males and two 
females. Type No. 3586, U.S. National Museum. - penitalis n. sp. 
Genus MACROMEIGENIA Br. and Berg. 
Macromeigenia Brauer and Bergeustamm, Zweif. Kais. Mus. Wien, V, p. 311; 1891. 
The type species is black, the first two antennal joints, palpi, and 
fourth abdominal segment, except sometimes its base, yellow; four 
postsutural and three sternopleural macrochete; length, 11 to 14 mm. 
Northern Virginia and Tifton, Ga. (Ausser. Zweif. Insekten, Vol. IT, 
p. 309; 1850: Tachina. Tachina interrupta Walker, Insecta Saunder- 
Beet Ol lene. O0Os) 4s 4 te oot. fale fe chrysoprocta Wied. 
Genus GYMNOCH ZETA Desv. 
Gymnocheta Desyoidy, Essai sur les Myodaires, p. 371; 1830. 
Body, occiput, and sides of front green, antennie and legs black; 
sometimes the third antennal joint is yellow, and rarely the entire 
antennie is yellow; palpi yellow, frontal bristles in single rows; length, 
10 to 12 mm. Newark, N. J., and Colorado. (Diptera Amer. Sept. 
Indigena, Cent. VIII, No. 61; 1869. Gymnocheta ruficornis Williston, 
Trans. Amer. Ent. Soc., Vol. XIII, p. 302; October, 1886.) . . aleedo Loew. 
Unrecognized species.—G. vivida Williston, Trans. Amer. Ent. Soe., 
Vol. XIIT, p. 302; October, 1886. Pa. 
Genus METAPHYTO, new genus. 
The characters of this genus may be gleaned from the above table of 
genera and the following description of the type species: Black, the 
apex of the scutellum yellowish; front of femate one and one-third 
times as wide as either eye, two pairs or orbital bristles, frontals 
descending to middle of second antennal joint, vibrissie slightly above 
the level of front edge of oral margin, two or three bristles above each, 
antenne nearly four-fifths as long as the face, the third joint one and 
