125 
». Palpi, seutellum, and apex of abdomen, black; third antennal joint 
in the female three times as long as the second, hind tibize out- 
wardly near the middle bearing a bristle which is nearly twice 
as long as the adjacent ones; length, 7 mm. Los Angeles 
County, Cal. (Ann. Soc. Entomol. France, p. 258; 1888: Che- 
LOUUGU NOH ee As oes Fn eae eS Ss nigrifacies Bigot. 
Palpi, scutellum, and apex of abdomen, yellowish; third antennal 
joint in the female about twice as long as the second, no longer 
bristles on outer side of the hind tibize near the middle; females 
usually with a marginal pair of macrochetie on the second 
abdominal segment, which is generally wanting in the males; 
length, 6 to 12 mm. London, Canada; White Mountains and 
Franconia, N. H.; Agawam, Mass.; Delaware County, Pa.; 
Ithaca, N. Y.; Chester, Pa.; District of Columbia; Portsmouth, 
Va.; Shreveport, La.; Illinois; Agricultural College, Mich.; St. 
Louis, Mo.; Washington, and Germany. Four males from Ger- 
many received from Zeller and by him labeled Vemorea 4-pustu- 
lata. (Entom. Systematica, Vol. IV, p. 324; 1794: Musca, The 
following synonymy is by Schiner in Faun. Austriaca, Vol. I, p. 
454: Winthemia cinerea Desvoidy, Ann. Soc. Entomol. Irance, 
p. 270; 1847. The following is by the writer: Hworista leu- 
caniw Kirkpatrick, Ohio Agricultural Report for 1860, p. 757; 
1861. The following is given in Osten Sacken’s Catalogue: 
Eworista ostensackenii Kirkpatrick, loc. cit. Senometopia milt- 
taris Walsh, Trans. Ill. State Agric. Soc., Vol. IV, p. 367; Sep- 
tember, 1861. The following is by the writer: Hworista cecropie 
Riley MS., from the proposed type specimen. Tachina deile- 
phile Osten Sacken, Canadian Entomologist, Vol. XTX, p. 164; 
September, 1887. Hworista infesta Williston, in Fourteenth 
Report State Ent. Illinois, p. 65; 1885. Chetolyga rufonotata 
Bigot, Ann. Soc. Entomol. France, p. 257; 1888. Chatolyga 
rufopicta Bigot, loc. cit., p. 259. Hxrorista ciliata Townsend, 
Trans. Amer. Ent. Soe., Vol. X VIII, p. 363; Dec., 1891. Hxorista 
platysamie Townsend, loc. cit., Vol. XTX, p. 288; Dec., 1892. 
Exorista datane Townsend, loc, cit. Cheetolyga deilephilw O. S., 
Brauer and Bergenstamm in litt.) -..----- quadripustulata Fabr. 
Genus MUSCOPTERYX Town. 
Muscopteryx Townsend, Canadian Entomologist, Vol. XXIV, p. 170; July, 1892. 
Our species is black, including the palpi; three postsutural and three 
sternopleural macrochete; length, 9mm. Missouri. (Loe. cit, p. 171.) 
chetosula Town. 
