125 



Piilpi, scutelliiin, ;ind apex of abdomen, black; third auteiiual joint 

 in the female three times as long as the second, hind tibiae 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 Sne ipntrtmnl Frniu'.n, p. 25S; 1 SSS ; Ohw~ 



-t^lyga.) ^at-rv^^Tr-tr^^ie^.i^rt,^. . mgrifamm Bigot. 



Palpi, scutellum, and apex of abdomen, yellowish; third auteiiuar 

 joint in the female about twice as long as the second, no longer 

 bristles on outer side of the hind tibiaj near the middle; females 

 usually with a marginal pair of macrochsetje 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 Nemorwa 4-pustu- 

 lata. (Entom. Systematica, Vol. IV, p. 31*4; 1794: Mnsca. The 

 following synonymy is by Schiuer in Faun. Austriaca, Vol. I, ]}. 

 454: Winthemia cinerea Desvoidy, Ann. Soc. Entomol. France, 

 p. 270; 1847. The following is by the writer: Exorista leu- 

 canicv Kirkpatrick, Ohio Agricultural Report for 1860, -p. 757; 

 18G1. The following is given in Osten Sacken's Catalogue: 

 Exorista ostensackenii Kirkpatrick, loc. cit. Senometopia mili- 

 taris Walsh, Trans. 111. State Agric. Soc, Vol. IV, p. 367; Sep- 

 tember, 18G1. The following is by the writer : Exorista cceropiw /} tUZZc ^u*i 

 Eiley MS., from the proposed type specimen. Tachina deile- it-^.^,.-*^,,,.,.^ 

 phila' Osten Sacken, Canadian Entomologist, Vol. XIX,]). 164; •' ^■*- ^ * - ^ , 

 September, 1887. Exorista infesta Williston, in Fourteenth /} .^,,^-14--^ 

 Eeport State Ent. Illinois, p. 65; 1885. Chwtolyfja rufonotata J, ^ 

 Bigot, Ann. Soc. Entomol. France, p. 257; 1888. CJuvtolyga /Z^a ^ - ^ **.^^^ 

 rufopicta 'Bigot, loc. cit., p. 259. Exorista ciliata Townsend, x, //>' "^j 

 Trans. Amer. Ent. Soc, Vol. XVIII, p. 363 ; Dec, 1891. Exorista ^ ^ J ^ "^ ■ 

 platysamicc Townsend, loc. cit., Vol. XIX, p. 288; Dec, 1892. S^^i^U/A^ 



Exorista datanw Townsend, loc. cit. CJuvtolyga deilephilw O. S. 

 Brauer and Bergenstamm in litt.) quadripustulata Fabr. 



Genus MUSCOPTERYX Town. ' 





i/MScop/erya; Townsend, Canadian Entomologist, Vol. XXIV, p. 170; July, 1892. / i j^t fs/.^ j£. 



Our species is black, including the palpi; three postsutural and three ^ m^^^c, 

 sternopleural macrochoetai ; length, 9 mm. Missouri. (Ijoc cit, p. 171.) ^ ^(^ > 



I (U^' » ^^^-^ ^^<i,<y^ chwtosula Town. 



