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Genus PLAGIPROSPHERYSA Town. 
Plagiprospherysa Townsend, Trans. Amer. Ent. Soc., Vol. XIX, p. 118; May, 1892. 
Our species is black, the first two joints of the antenne, palpi, apex 
of scutellum and sometimes the front corners of the second and third 
seements of the abdomen, yellow; three postsutural and three sterno- 
pleural macrochetie, two on the front side of each middle tibia near its 
middle; length,6to9mm. Georgia; Organ Mountains and Las Cruces, 
N. Mex., Colorado, Tenino, Wash., and southern California. (Biol. 
Cent.-Amer., Diptera, Vol. II, p. 124; May, 1890: Prospherysa. Plagi- 
prospherysa valida Townsend, Trans. Amer. Ent Soc., Vol. XLX, p. 
113; May, 1892. Plagiprospherysa floridensis Townsend, loc. cit., p. 
MBI fe) Pe ce fe Sees Solas aie ce a) Snb os cic ee hs ee tes es parvipalpis v. d. W. 
Genus METAPLAGIA Coq. 
Metaplagia Coquillett, Journal N. Y. Ent. Soc., Vol. III, p. 102; September, 1895. 
Our species is black, the first two joints of the antennie and the 
palpi, yellow; three postsutural and three sternopleural macrochete ; 
leneti, 7 mm. From the type specimen. San Diego County, Cal. 
Gog. Git., p. 103.) . =... Re Pa Rene tee te NS HS NS = occidentalis Coq. 
Genus PARAPLAGIA Br. and Berg. 
Paraplagia Brauer and Bergenstamm, Zweif. Kais. Mus. Wien, V, p. 354; 1891. 
Ouv two species are black, the first two joints of the antenne and 
palpi yellow; three postsutural and three sternopleural macrochietie: 
Third joint of antenne at most one and one-half times as long as the 
second, third vein bristly almost to tip of discal cell, first seg- 
ment of abdomen destitute of macrochiete; length, 6 to 8 mm. 
District of Columbia; northern Ilinois, and Colorado. (Annales 
Soc. Entomol. France, p. 262; 1888: Heteropterina. Paraplagia 
Third joint of antenne three times as long as the second, third vein 
not bristly to the small crossvein, first segment of abdomen bear- 
ing a pair of long macrochictie; front of female one and one-fifth 
times as wide as either eye, three pairs of orbital bristles, the 
median pair small, frontal bristles descending to tip of second 
antennal joint, sides of face wholly covered with short hairs 
and each bearing a row of about six macrochwte, cheeks nearly 
one-half as broad as the eye height, arista thickened on the basal 
two-thirds, the penultimate joint one and one-half times as long 
as broad; thorax thinly gray pollinose, marked with four black 
vittie; abdomen white pollinose on bases of last three segments, 
these bearing discal and marginal macrochete; wings hyaline, 
