470 NEW YORK STATE MUSEUM 
black, costa very convex; media of fore wings with six branches; 
cross veins between all branches of radius, about 28 to 30; Cu, 
with three accessories. Length to tip of wings 60 to 65 mm; 
ular expanse 90mm. 
. Brazil. 
6 N. winthemi n. sp. 
Yellowish; mandibles reddish brown; head brownish yellow, 
; lighter on hind part, side of head one toothed; prothorax longer 
than broad, dark marking indistinct; legs light yellow, last tar- 
sal segment blackish; antennae not seen; wings whitish hyaline; 
veins yellow; fore pair with the cross veins and angles of veins 
more or less brown; cross veins between all branches of radius 
about 11 or 12; Cu, with two accessories. Length of body 32mm; 
to tip of wings 55mm; alar expanse 90mm. | 
Brazil. Collected by Winthem. Type in the Hagen collection, 
Museum of Comparative Zoology. ae 
7 N. pallidus n. sp. 
Light yellow; mandibles brownish; ocelli partly ringed with 
black; behind each side of head a brown raised mark; cheek 
with a single tooth; prothorax longer than wide, a brown inter- 
rupted streak each side, not reaching the caudal margin of the 
segment; legs and feet light yellow, claws darker; antennae fili- 
form and hairy; wings transparent, obscured in the stigmatal 
region of all four wings; a few white scales and hairs along the 
veins; cross veins, at least toward base of fore wings, somewhat 
darkened; about 12 to 14 cross veins between all the branches. 
of radius; media of fore wings with three branches; Cu, with 
two accessories. Length to tip of wings about 40mm; alar ex- 
panse 60 to 65 mm [pl. 52, fig. 3]. 
Type in United States National Museum, Washington, cata- 
logue no. 5176; probably native of Mexico. 
CORYDALIS Latreille 
Adult. This genus includes the largest insects of the order. 
Yellow-fuscous, 40 to 60 mm long from base of jaws to end of 
abdomen, males usually the larger; wings fuscous with black 
and yellow veins; white dots always found in some of the ceUs 
