124 



value. Our two species have four postsutural and three sternopleura 



iiia.crochii'tii' : . q ,^ ,^ ,^-_ .JL.^^h'^'^:^^ 



Abdoiueu w^polly black ;nength, 11 to 13 mm. Franoonia, N. H., and 



^'T'^a.is^ Washington. ( AussereuropJiische Zweif. Insekteu, Vol. II, p. 308; 



^ 1830: Tachina. Blepharipeza rujipalpis Macquart, Dipt. Exot., 



-1 ' Vol.11, Partlll, p. 212 (55); 1843. Tachina latifrons Walker, 



/-^ ' ' '"-cvw /^. lusecta Sauudersiaiia, p. 284 ; 1856.) ^. leucophrys Wied. 



Abdomen reddivsh yellow, a black dorsal vitta; length, 10 to 14 mm. 



Toronto, Canada; Oswego and Xew York, N. Y. ; Colorado, and 



California. (Diptera Amer. Septen. Indigena, Centuria X, No. 



fO o '^'i ; 1872. Blepharipeza fulvlpe^'f^igot, Ann. Soc. Entomol. 



P^ France, p. 92; 1888. Blepliaripezo, 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'Br-a,ney and Bergenstamm, Zweif. 



Kais. Mus. Wien, VI, \). 204; 1893: also in litt.). . . .adusta Loew. 



^ Genus WINTHEMIA Desv. ^ 



TViuthemia Desvoidy, Essai snr les Myodaires, j). 173; 1830. 



Chetollfja Rondaui, Dipterologiii' Italicir Prodromus, Vol. I, p. 66; 1856. 



This sj-nonomy has already been published by Brauer and Bergen- 

 stamm.' Desvoidy (loc. cit.) gives the Miisca quadripuHtulata Fabr. as 

 the type of Wiuthemia; and this species is included by Rondani in bis 

 genus Chetoliga (loc. cit.. Vol. Ill, pp. 105 and 108): 

 1. Thorax bearing four postsutural and/two*" sternopleural macro- 



chfetfE Ij^.'.)^.. {^M:f.y^:'*.j^'.\ 2. 



Thorax bearing three postsutural and three sternopleural macro- 

 chietai; black, the palpi yellow, frontal vitta dark brown; front 

 in male slightly broader than either eye; antennte 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 vitttie; scutellum bearing four marginal pairs of ma- 

 crochcTtne, 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 nuirginal row of macrochtetiie, those on the 

 fourth segment scarcely longer than the bristly hairs; hind 

 tibiie outwardly ciliate and with a much longer bristle near the 

 middle, front pul villi as long as the last tarsal joint; wings 

 hyaline, fourth vein beyond the bend almost straight; calyp- 

 teres white; length, 7 mm. Mar^dand. A single male speci- 

 men, collected by the writer in June. Type No. 3028, U. S. 

 National Museum ohscura n. sp. 



'Zweif. Kais. Mns. Wien, VI, p. 239; 1893. 





