— 
&2 
aration from Biomyia.' Our species have only three sternopleural 
macrochetie, the second and third segments of the abdomen destitute 
of discal ones, second joint of antennie and the palpi, yellow: 
1, Thorax bearing only three postsutural macrochetie........--..-. 2. 
Thorax bearing four postsutural macrochiet«e, middle tibiwe each 
bearing only one on the front side near the middle, scutellum 
and sides of first three segments of the abdomem black, apex of 
the fourth segment yellow, antennie two-thirds as long as the 
face; length, 11 mm. Florida. (Proc. Acad. Nat. Sci. Phila- 
delphia, p. 309; September, 1895: Masiphya.)...-.aurigera Coq. 
2. Antenne at least three-fourths as long as the face; scutellum and 
abdomen “wholly black-235 2 ae Soe en, ee eee a, oregon 
Antenne two-thirds as long as the face, middle tibiz each bearing 
two or more macrochetie on the front side near the middle; 
apex of scuteilum and sides and apex of abdomen yellow; 
length, 9 to 12 mm. District of Columbia; Maryland; Vir- 
ginia; Tifton, Ga.; Biscayne Bay, Fla., and Los Angeles 
Co., Cal. (Zweif. Kais. Mus. Wien, V, p. 315; 1891: Masiphya. 
Also in litt. Tachinomyia floridensis Townsend, Trans. Amer. 
Ent. Soc., Vol. XIX, p. 97; May, 1892.).brasiliana Br. and Berg. 
3. Cheeks one-fifth as broad as the eye height, front in each sex one- 
half as wide as either eye, abdomen subopaque gray pollinose, 
hind margins of the second and third segments and reflecting 
spots darker; length, 5 to 6 mm. Amherst, Mass., and Los 
Angeles County, Cal. (Zweif. Kais. Mus. Wien, V, p. 312; 1891: 
Viviania. Masicera sordicolor Townsend, Trans. Amer. Ent. 
Soe., Vol. XVIII, p. 359; December, 1891. Pseudotractocera 
calosome Coq. MS., Burgess in Rept. Mass. State Board Agric., 
Ds Oo J ANU ALY, MOOT see Cee ee cee ees ee georgie Br. and Berg. 
Cheeks one-tenth as broad as the eye height, front of female as wide 
as either eye; black, the palpi and apex of proboscis yellow; 
frontal bristles descending almost to apex of the second anten- 
nal joint, five pairs of orbital bristles in the female, sides of face 
at narrowest part each one-tenth as wide as the median depres- 
sion, vibrisse half the length of the second antennal joint above 
the oral margin, ridges bristly on the lowest fourth, antennie 
reaching slightly below lowest third of face, the third joint one 
and one-half times as long as the second, arista thickened almost 
to the middle, the penultimate joint as broad as long; thorax 
thinly gray pollinose, marked with four black vittie, scutellum 
bearing three long marginal pairs of macrochetie, abdomen 
1An Austrian specimen received from Brauer and Bergenstamm and by them labeled 
Viviania pacta Meig., has the apical cross vein strongly concave, and not straight, as 
stated by these authors in Zweif. Kais. Mus. Wien, VI, p. 111; 1893. 
