78 NEW YORK STATE MUSEUM 
cc Circumfili nearly regular and without one or more greatly produced 
bows or loops 
d Basal clasp segment lobed 
e The lobe apical, setose or spinose and the terminal clasp seg- 
rmASTaE, SOMO OMCA. Goda acenaacacde Lobodiplosis Felt 
ee The lobe basal, setose or nearly glabrous 
f Ventral plate or harpes strongly chitinized............ 
Coquillettomyia Felt 
ff Ventral plate and harpes as in Lestodiplosis and not 
Ghiitimizedi cis ea ecer cite ches: FPeltiella Rubs: 
dd Basal clasp segment not distinctly lobed 
e Terminal clasp segment subfusiform, distinctly dilated, 
harpes strongly chitinized and very complex........... 
Karschomyia Felt 
ee Terminal clasp segment not as above 
f Claws curved nearly at right angles, ventral plate 
greatly elongate and emarginate apically, dorsal plate 
deeply cleft and triangularly emarginate . Fe 
Cine dee tiemae Kae 
ff Claws not strongly curved and therefore not forming 
almost a right angle, ventral plate not greatly pro- 
duced, the lobes of the dorsal plate not divided, 
cleft or triangularly emarginate, the female flagellate 
antennal segments with normal, low circumfili, the 
ovipesitor Shorti.....-.. My codip losis iubs: 
bb Palpi triarticulate 
c Terminal clasp segment not greatly produced, ventral plate short 
ANG DrOa dia. yt sn eet een tke et eee pee te Ditardarp lorssrs Belt 
aaa Claws simple or not toothed on any of the legs 
b Palpi quadriarticulate 
c Third vein uniting with the margin before the apex of the wing 
d The stems of the flagellate antennal segments mostly with a 
length less than the diameter, the circumfili rather short, 
ventral plate deeply bilobed, not greatly produced......... 
Arthrocnodax Rubs. 
cc Third vein uniting with costa beyond the apex of the wing 
d Circumfili with short bows or wanting 
e Some of the flagellate antennal segments cylindric 
f Circumfili rudimentary or wanting, the 1oth to the 
14th segments cylindrical, the harpes somewhat 
imate ss.\ys seein acy emer Prodiplosis Felt 
ff Circumfili distinct though low, all the flagellate or 
only the distal antennal segments cylindrica!, male 
antennae about as long as the body, ovipostor short 
Caryomyia Felt 
ee Flagellate antennal segments binodose in the male 
f Stems of the flagellate antennal segments very short, 
transverse, antennae about as long as the body, the | 
OVvipositon Short... vege. cs Cary om ya Felt 
