470 NEW YORK STATE MUSEUM 



black, costa very convex; media of fore wings vi^ith six branches; 



cross veins between all branches of radius, about 28 to 30; OUj 



with three accessories. Length to tip of wings 60 to 65 mm; 



i.lar 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. 



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; Cuj with 

 two accessories. Length to tip of wings about 40mm; alar ex- 

 panse 60 to 65 mm [pi. 52, fig. 3]. 



Type in United States National Museum, Washington, cata- 

 logue no. 5176; probably native of Mexico. 



coRYDALis Latrellle 



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 vdth black 

 and yellow veins; white dots always found in some of the c(M]s 



