132 
the second, arista thickened on the basal fourth, sides of face 
each bearing a single row of macrochaetae, cheeks one-fourth as 
wide ns the eye height; scutellum bearing three pairs of long 
marginal macrocha'ta 1 ; abdomen opaque gray pollinose, with 
darker reflecting spots, first and second segments with a mar- 
ginal pair, second and third each with a discal pair, third with 
a marginal row, and the fourth with three rows of macroclueta) ; 
wings hyaline, third vein bristly halfway to the small crossvein, 
apical cell short petiolate, calypteres white; length, (5 mm. 
San Diego, Tex. A female collected May 2, 1895, by E. A. 
Schwarz. Type No. 3639, 1 J". S. National Museum .pulverea n. sp. 
4. Scutellum bearing only two pairs of long marginal macroclnetie, cos- 
tal spine much longer than the small crossvein ; length, 8 to 9 
mm. Westville, N. J.; Potomac Creek, Ya.; Tifton, Ga., and 
Florida. (Trans. Ainer. Ent. Soc, Vol. XIX, p. Ill ; May, 1892 : 
Sarcotachinella.) intermedia Town. 
Scutellum bearing three pairs of long marginal macrochaetae, costal 
spine noticeably shorter than the small crossvein; length, (> to 
8mm. Cumberland County, N. J., and southern Illinois. (Trans. 
Amer. Ent. Soc, Vol. XVIII, p. 300; December, 1891 : Laeco- 
prosopa.) sarcophagina Town. 
Unrecoyniii'rf species. — B.( ?) macrapogon Bigot, Ann. Soc. Ent. France, 
p. 259; 1888. California. 
Genus EUTHYPROSOPA Town. 
Euthyprosopa Townsend, Trans. Amer. Ent. Soc, Vol. XIX, p. 106; May, 1892. 
Our single species is black, the antennae, middle of face, lower part 
of head, the palpi, corners of thorax, scutellum, hind margin of each 
segment of abdomen, apices of femora and the tibhe, yellow; three post- 
sutural and two sternopleural macrochaetae; length, 7 mm. From a 
cotype specimen. Las Cruces, N. Mex. ( Loc. cit., p. 107.) .petiolata Town. 
Genus GONIA Meig. 
Gonia Meigen, in Illiger's Magazin fur Insektenkunde, Vol. II, p. 280; 1803. 
Bhedia Desvoidy, Essai snr les Myodaires, p. 71; 1830. 
Beaumuria Desvoidy, loc. cit., p. Tii. 
Isomcra Desvoidy, Annales Soc. Ent. Franco, p. 315; 1851. 
P%88emya Desvoidy, loc. cit., p. 318. 
Desvoidy proposed the name Bhedia for the genus Gonia, errone- 
ously stating that the latter term ha/l been previously used in Con- 
chology; and in the Annales Soc. Entomol. France, second series, 
p. 309, he states that his genus lleaumuria contains the males, and 
Kheclia the females, of the same species. The synonymy of Isomera is 
by Schiner, 1 and that of Pissemya is by Brauer and Bergenstamm. 2 
Fauna Austriaca, Vol. I, p. 441; 1862. 
Zwcif. Kais. Mus. Wien, VI, p. 235; 1893. 
