Bs? 
Ach 
tarsal joint; length, 8 to 10 mm. Tifton, Ga., and Florida. 
Two male specimens. Type No. 3616, U.S. National Museum, 
pulverea Nn. sp. 
6. Third vein bristly at least three-fourths of distance from the base to 
eR FCPOSSVCIN es. sss oe fee. kale be fis ete. lL! ue 
Third vein bristly at most one-third of this distance, entire abdomen 
black; length, 6 toll mm. Grimsby, Canada; Mount Washing- 
ton and Franconia, N. H.; Maryland; District of Columbia; 
northern [linois, and Santa Cruz Mountains, Cal. (Trans. Amer. 
But.S0e.,, Vol. XX, p. 286; Dec., 1892.) :...... eufitchie 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 pairs 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, antenne five-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, the penultimate 
joint shorter than broad; thorax thinly whitish pollinose, marked 
with four black vitte, seutellum bearing three pairs of long mar- 
ginal and a short apical pair of macrochwtie, 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 
9mm. White Mountains, New Hampshire. Four males and 
five females, collected by the late H. K. Morrison. Type No. 
361%, U.S. National Museum ©. 2... 22.2222 chetoneura 0. 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 antennie two and one-third times 
as long as the second; length, 5 to 9 mm.; otherwise as in the 
above description of chetoneura. Mount Washingtonand 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, U.S. National 
NETTIE S10 00 NER as Se cee th Pe a a QUIU/YONS DL. Sp. 
Unrecognized species.—M.(?) fulvipalpis Bigot, Ann. Soc. Ent. France, 
p. 263; 1888: Rocky Mountains. 
Genus ACEMYIA Desv. 
Acemya Desvoidy, Essai sur les Myodaires, p. 202; 1830. 
Agculocera Macquart, Annales Société 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 
! Dipterologie Italic:e Prodromus, Vol. LV, p. 81; 1861, 
