REPORT OF THE STATE ENTOMOLOGIST 1907 415 
ee Abdomen dark brown, length .75 mm; 5th antennal segment 
having the stems with a length % and 11% that of the diameter 
ilavyOseuta rel CG 76 
eee Abdomen dark reddish, length 1 mm; 5th antennal segment hav- 
ing the stems with a length 34 and twice that of the diameter 
folhora IXssl, @e lallksr.j C, 2gxo 
dd Fifth antennal segment having the basal portion of the stem with 
a length greater than its diameter 
e Abdomen reddish brown, length 1.6 mm; 5th antennal segment 
having the stems with a length 1% and 2% times that of the 
Giant ensmmem a crore ister a eek ClAVEOMIAS Wek. C, AO 
cc Ventral plate hardly tapering distally, very short and broad 
d Abdomen pale yellowish, length .75 mm; 5th antennal segment 
having the stems with a length 2 and 2% times that of the 
GiANTELE TSR meee teint ar kates Woes SKXCAVACIOMIC leh C, Os 
EPIDOSARIAE 
This group contains a number of very characteristic forms 
which nevertheless present many structural diversities. The 
members of the group may be best recognized by the well de- 
fined cross vein uniting subcosta with the base of the third 
vein. This cross vein frequently has a course nearly parallel 
with costa, though in certain forms it diverges from the third 
vein at an oblique angle, and in some species almost at a 
tight angle. The third vein unites with the margin of the wing 
beyond the apex. Several genera are undoubtedly represented 
in our American fauna which have not been differentiated from 
the older established ones. So little is known of the life history 
of these species and there is such great diversity between the 
two sexes, that the present studies must be regarded as pre- 
liminary. 
Key to genera 
a Three long veins 
b Cross vein not parallel with costa 
c 5th vein forked, the wings very long and narrow, the legs long... 
Colpodia Winn. 
ce 5th vein simple, wings broader and legs shorter.................- 
(type J. rubra) Johnsonomyia un. g. 
bb Cross vein running parallel or nearly so to costa 
c 5th vein forked 
de Mntenhiessneathyaprolongedmine DothesexeSma- sic ss. i 1 
Porricondyla Rond. 
dd Antennae not greatly prolonged in both sexes..Dirhiza Winn. 
CC Bil Wet SiS... Sa boos oe scooeedused Samat Holoneurus Kieff. 
aa 4 long veins, the 5th simple 
b Cross vein running parallel or nearly so to costa..Asynapta H. Lw. 
bb Cross vein running at a considerable angle with costa................ 
Winnertzia Rond. 
