May, 1953 
crossveins in the costal interspace relatively 
few in number and sometimes partly anas- 
tomosed. In the hind wing, vein R, di- 
verges from R, at a point the same distance 
proximad of the outer wing margin that R, 
Burks: THE Mayr ies or ILLINOIS 
199 
diverges from R,; vein M, diverges from 
M, at a point only one-third the distance 
from the base to the outer wing margin. 
The male genitalia consist of a pair of four- 
segmented forceps arising from a medianly 
Ee, 
% 
by 
\% 
\% 
\*% 
anny weet O ay, = 
i ye ~} 
Uy 
A 
Wy 
Myf 
My 
My 
Jos KRNATHOMIG Et ee 25 
Wy eH y 
iy 
eetnge tm 
' : 
a TNL etal \ 
M4 
Hip 
TY 
Ait rin ‘ 
3 Zi\nit Dar) 
Vir yy eT 
j 
“ ee 
yyy 
ar 
l 
yl 
yi 
oe 
— 
cree 
je 
end 
ai 
Miyy 
mS 
Yj 
“am, 
Ziti tth 
en ak By 
NCU TANITA A 
<3 
ty Any meh 6 
wit Ay 4 
eu, Way 
See 
) —<@ 
Sl 
{ONO 
a 
*) 
f 
S 
i! 
i 
Fig. 394.—Nymph questionably placed as that of Anepeorus; nearly mature nymph, dorsal 
aspect. The small figure at left shows detail of gill borne on venter of fifth abdominal segment. 
