71 
black and sometimes with a black dorsal vitta; length. 5.~) mm. 
Tewksbury, Mass., and Veta Pass. Colorado. (Zweif. Kais. Mus. 
Wien, IV, p. 1^5 ; 1881): also in lift.) elausa Br. and Berg. 
3. Antenna' reaching- at least halfway to the oral margin, the tip less 
than the length of the second joint from the point where the 
facial ridges approach each other the most closely; snbniarginal 
cell in the male scarcely over one-half as wide as the greatest 
distance from the third vein to the hind margin of the wing, 
front in the female noticeably widening anteriorly 4. 
Antenna' reaching two fifths of distance from their base to the oral 
margin, the tip nearly three times the length of the second joint 
from the point where the facial ridges approach each other the 
most closely; front in female three-fourths as wide as either eye, 
its sides parallel. (According to Brauer and Bergenstamm. the 
siibmargiiial cell in the male is as wide as the greatest distance 
from the third vein to the hind margin of the wing, and the 
second vein near its middle and the costa opposite it are greatly 
swollen.) Length. 8 nun. Texas, i Zweif. Kais. Mus. Wien, IV, 
p. 117 : 188!) : Phasiopteryx. Also in lift. | . . bilimelcii Br. and Berg. 
4. Front in the male nearly one-half, in the female two-thirds, as wide 
as either eye: second vein in the male with a large swelling 
near tin' middle and another on the costa opposite it; subinar 
giual cell almost twice as wide as length of the hind crossvein; 
length, 5.5 to 7 nun. Charlotte Harbor. Florida. (Journal N. V. 
Knt. Soc, Vol. III. p. 52; June, 181)."): Clytiomyia. Phasiop- 
teryx MUmekii Br. and Berg., Brauer and Bergenstamm in 
lift. ) .'. .punctata Coq. 
Front in the male scarcely one-eighth, in the female one and one- 
third times, as wide as either eye; second vein destitute of a 
swelling, sub marginal cell less than two thirds as wide as length 
of hind cross vein; length, 7 to 8 mm. Georgia, Texas, and 
Colorado. (Annales Soc. Entomol. France, p. 208; 1888: Pyr- 
rosia.) oehracea Bigot. 
Genus CLYTIOMYIA Rond. 
Clytia Pesvoidy, Essai sur les Myodaires, p. 287; 1830. (Xon Lamarck, 1812; nan 
Hnebner, 1816.) 
Clytiomya Rondani, Dipterologiae Italic* Prodromns, Vol. IV, p. 9; 1861. 
The latter term was proposed to take the place of Clytia, which had 
been used twice previously as a generic name. Our species have three 
postsutnral and two sternopleural macrochaetae : 
Legs black, entire insect, except the yellow palpi, black; calypteres 
white, wings hyaline; length, 7 mm. Washington. (Journal 
N. Y. Ent. Soc. Vol. Ill, p. 53; June, 1895.) atrata Coq. 
Legs yellow; head and its members except the eyes and upper part 
of the occiput, usually the apex of scutellum, and abdomen 
