70 
Genus HYALOMYODES Town. 
Hyalomyodes Townsend, Psyche, Vol. VI, p. 429; April, 1893. 
Our single species is black, the palpi yellow; eyes of male almost 
contiguous, but in the female separated at least one and one-half times 
the width of the lowest ocellus; abdomen on last three segments gray 
pollinose, the second and third segments in the female each bearing a 
pair of large triangular black spots, indistinct or wanting in the male; 
front pulvilli of female less than two-thirds as long as the last tarsal 
joint; length, 4 to 5 mm. White Mountains, N. H.; New Bedford, 
Mass.; Maryland; Tifton, Ga., and Colorado. (Dipt. Amer. Sept. 
Indig., Centuria 1V, No. 85; 1863: Hyalomyia. Hyalomyodes weedii 
Townsend, Psyche, Vol. VI, p. 480; April, 1893.). ..triangulifera Loew. 
Genus (ESTROPHASIA Br. and Berg. 
(Estrophasia Brauer and Bergenstamm, Zweif. Kais. Mus. Wien, IV, p. 145; 1889. 
Phasiopteryx Brauer and Bergenstamm, loc. cit., p. 146. 
Neoptera van der Wulp, Biol. Cent.-Amer., Diptera, Vol. II, p. 165; June, 1890. 
Cenosoma van der Wulp, loc. cit., p. 166. 
Euestrophasia Townsend, Trans. Amer. Ent. Soc., Vol. XIX, p. 155; June, 1892. 
The synonymy of the last two with (istrophasia, and of Neoptera 
with Phasiopteryx, has already been given by Brauer and Bergen- 
stamm.' Phasiopteryx is not sufficiently distinct from Cistrophasia to 
be retained as a distinct genus. Our species have three postsutural 
and two sternopleural macrochiete : 
if Wines destibute of brown markings 22.03 /.2.5.225 2 326 ee ee os 
Wings distinctly marked with brown: =: 2.2.2 2-2.1. a S252 Se 2. 
2, Diseal cell crossed by a brown crossband, hind crossvein not wholly 
bordered with brown, a brown border to the fifth vein and a 
brown crossband beyond the discal cell; yellow, an ocellar dot 
and usually from one to three spots or a fascia on hind margin of 
each segment of the abdomen, and sometimes one or more on the 
thorax, black; length,4to5mm. Toronto, Canada; Franconia, 
N.H.; Philadelphia, Pa.,and Florida. (Bio)..Cent.-Amer., Dip- 
tera, Vol. II, p. 167; June, 1890: Cenosoma.) .-signifera v. da. W. 
Discal cell not crossed by a brown ecrossband, hind crossvein bor- 
dered with brown, second basal and anal cells, and wing in 
front of third vein from humeral to slightly beyond small cross- 
vein, also a brown crossband extending over the hind crossvein 
and bordering the fifth vein except near base of discal cell, 
brown; yellow, the upper part of the occiput sometimes blackish, 
thorax sometimes black dorsally, or with two vitte and an ante- 
rior spot black; abdomen with the hind margin of each segment 
'Zweif. Kais. Mus. Wien, VI, pp. 218 and 234; 1895. 
