AQUATIC INSECTS IN NEW YORK STATE 469 
in both pairs of wings of both sexes. Length to tip of wings 
38 to 48 mm; alar expanse 65 to 80 mm. 
Brazil. 
4 N. hieroglyphicus Rambur 
1812 Neuromus hieroglyphicus Rambur, Hist. Nat. Neur. 
p.442 
1853 Hermes hieroglyphicus Walker, Cat. Brit. Mus. -Neur. 
p.206 
1861 Corydalis hieroglyphicus Hagen, Synopsis Neur. N. Am. 
p.194 
1869 Neuromus hieruglyphicus McLachlan, Ann. and Mag. 
Nat. Hist. (4), 4:45 
Pale yellow; mandibles brown; cheeks convex, one toothed; 
head with two black spots behind, which fade out in some speci- 
mens; prothorax cylindric with four black or brown spots or 
marks; mesothorax with sometimes two to four similar marks; 
feet yellow, base and apex of tibiae and apex of tarsi black; 
antennae short, black with bases yellow; appendages of male 
four, superior ones the longer, apex recurved; inferior ones 
stout, apex clavated; wings yellowish hyaline, cross veins+in 
front pair partly black, and those wings marked posteriorly 
with more or less distinct black spots; media of fore wings 
with three branches; cross veins between all branches of radius, 
about 10 to 17; Cu, with 1 to 2 accessories. Length to tip of 
wings 40 to 65 mm; alar expanse 65 to 90 mm. | 
| Mexico, Central America, Brazil, Venezuela. 
5 N. corripiens Walker 
1860 Hermes corripiens Walker, Ent. Soc. Lond. Trans. n. s. 5:180 
1861 Corydalis livida Hagen, Synopsis Neur. N. Am. p.321 (nomen 
nudum) 
1869 NeuromuSscorripiens McLachlan, Ann. and Mag. Nat. Hist. 
(4), 4:45 
General color testaceous; mandibles black, marked with dark 
brown; head black between the ocelli; heads slightly angled; 
prothorax narrower than the head, almost linear; two elongated 
black dots on each side, the fore pair sometimes almost obso- 
lete; legs yellow above, darker below, tarsi blackish; antennae 
simple, black, testaceous toward the base; wings whitish hyaline, 
veins testaceous, fore pair with the cross veins more or less 
