124 
value. Ourtwo species have four postsutural and three sternopleura 
macrochetee : 
Abdomen wholly black; length, 11 to 13 mm. Franconia, N. H., and 
Washington. (Aussereuropilische Zweif. Insekten, Vol. I, p.308; 
1830: Tachina. Blepharipeza rufipalpis Macquart, Dipt. Exot., 
Vol. II, Part IIL, p. 212 (55); 1843. Tachina latifrons Walker, 
Insecta Saundersiana, p. 284; 1856.)........-- leucophrys Wied. 
Abdomen reddish yellow, a black dorsal vitta; length, 10 to 14 mm. 
Toronto, Canada; Oswego and New York, N. Y.; Colorado, and 
‘alifornia, (Diptera Amer. Septen. Indigena, Centuria X, No. 
67; 1872. Blepharipeza fulvipes Bigot, Ann. Soc. Entomol. 
France, p. 92; 1888. Blepharipeza exul Townsend, Canadian 
Entomologist, Vol. XXIV, p. 64; March, 1892. Blepharipeza 
rufescens Townsend, Trans. Am. Ent. Soc., Vol. XTX, p. 90; 
April, 1892. Rileya americana Brauer and Bergenstamm, Zweif. 
Kais. Mus. Wien, VI, p. 204; 1893: also in litt.) ....adusta Loew. 
Genus WINTHEMIA Desv. 
Winthemia Desvoidy, Essai sur les Myodaires, p. 173; 1830. 
Chetoliga Rondani, Dipterologiw Italicee Prodromus, Vol. I, p. 66; 1856. 
This synonomy has already been published by Brauer and Bergen- 
stamm.! Desvoidy (loc. cit.) gives the Musca quadripustulata Wabr. as 
the type of Winthemia; and this species is included by Rondani iu his 
genus Chetoliga (loc. cit., Vol. II], pp. 105 and 108): 
1. Thorax bearing four postsutural and two sternopleural macro- 
hist. . ONS vie Sel aie el eg is Bee ae Ret ee ee pee ae 2. 
Thorax bearing three postsutural and three sternopleural macro- 
chet; black, the palpi yellow, frontal vitta dark brown; front 
in male slightly broader than either eye; antennie six-sevenths 
as long as the face, third joint nearly three times as long as the 
second, arista thickened nearly to the middle, cheeks one-sixth 
as broad as the eye height; thorax gray pollinose, marked with 
four black vittee; scutellum bearing four marginal pairs of ma- 
crochietie, of which the second and apical pairs are shorter than 
the others; abdomen wholly gray pollinose, the bristly hairs 
rather long and suberect, second segment bearing a marginal 
pair, the third a marginal row of macrochetie, those on the 
fourth segment scarcely longer than the bristly hairs; hind 
tibix outwardly ciliate and with a much longer bristle near the 
middle, front pulvilli as long as the last tarsal joint; wings 
hyaline, fourth vein beyond the bend almost straight; calyp- 
teres white; length, 7 mm. Maryland. A single male speci. 
men, collected by the writer in June. Type No. 3628, U.S. 
National Museum: thes 2 eile i eee obscura Nn. Sp. 
1Zweif. Kais. Mus. Wien, VI, p. 239; 1893. 
