115 



tarsal joint; length, 8 to 10 mm. Tiftoii, Ga., and Florida. 

 Two male specimens. Type 'No. 3616, U. S. National Museum. 



-<.^A^-^.M., ^ .'-^-- '.^a/- |/nim-t'a n. sp. 



6. Third vein^risxly at least thro o fourth tj of distance from the base to 



the small crossvein , 7. 



Third vein bristly at most one-thircLof this distance^utire abdomen 



black ;/^|eng^th, to IFmm. Grimsby, Canada; Mount Washing- (/.9-. - 

 ton and Francouia, IST. H. ;iplaryland: Disti-ict of Columbia; l^J-i-^^ZX <^ 

 northern Illinois, and Santa Cruz Mountains, Cal. (Trans. Amer.^^ <9-^.^.) 

 But. Soc, Vol. XIX, p. 286; Dec, 1892.) eufitchuD Town. 



7. Fourth and other segments of abdomen black; black, the palpi yel- 



low; front of male three-fourths as wide as, of the female 

 slightly wider than, either eye; two j)airs of orbital bristles in 

 the female, none in the male; sides of front and face white pol- 

 linose, cheeks over one-third as broad as the eye height, facial 

 ridges bristly on the lowest third, antennie live-sixths as long as 

 the face, the third joint one and three fourths times as long as 

 the second, arista thickened on the basal half,Jfiie penultimate^ 

 joint shorter than broad ; thorax thinly w^hitish pollinose, marked 

 with four black vitttie, scutellum bearing three pairs of long mar- 

 ginal and a short apical pair of macrochietie, abdomen shining, 

 bases of the last three segments thinly whitish pollinose, venter 

 not carinate in either sex; front pulvilli longer than the last 

 tarsal joint; wings hyaline, the base tinged with gray, hind 

 crossvein strongly curved, situated nearly midway between the 

 small crossvein and the bend, calypteres white; length, 7 to 

 9 mm. White Mountains, New Hampshire. Four males and 

 five females, collected by the late H. K. Morrison. Type No. 



3617, U. S. National Museum cluvtoneura n. sp. 



Fourth segment of abdomen of female on the apical half yellow, her 

 venter carinate, sides of front and face in both sexes deep golden 

 yellow pollinose, third joint of antennae two and one-third times 

 as long as the second; length, 5 to 9 mm.; otherwise as in the 

 above description of clKvtoneura. Mount Washington and White 

 Mountains, New Hampshire. One male and two females, one 

 from the former locality collected by Mrs. A. T. Slosson, the 

 others by the late H. K. Morrison. Type No. 3618, IT. S. National 



Museum aurifrons n. sp. 



Unrecognized species. — M.(%fHlvipalpis Bigot, Ann. Soc. Eut. France, 

 p. 263; 1888: Eocky Mountains. 4!,X.»^£^-v^.a— ^ £ A^-i-^^t-^-^^x i^ o) 



Genus ACEMYIA Desv. ^ .-^^we^-w^^^-^ ^ . 



Acemya Desvoidy, Essai sur les Myodaiies, p. 202; 1830. ^^^^^ ' "^/j" 



Agculocera Macquart, Annales Soci^t<? Ent. France, p. 24; 1855. 



The above synonymy was first determined by Rondani ^ from an 

 examination of a typical specimen received from Macquart, and is 



' Dipterologiiv Italica- I'rodroraus, Vol. IX, p. <si ; 18(il. 



