AQUATIC INSECTS IX 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 SO mm. 



Brazil. 



4 N. hieroglyphicus Eambur 



1S42 N euro m us h i e r o g 1 y p h i c ii s Rambur, Hist. Nat. Neur. 



1).442 

 1S53 Hermes li i e r o g 1 y p b i c n s Walker, Cat. Brit. Mus. Neur. 



P.206 

 ISGl C o r y cl a 1 i s b i e r o g I y p b i c u s Hagen, Synopsis Neur. N. Am. 



p. 194 

 1SG9 N e u r m u s b i e r o g 1 y p b i c u s McLacblan, Auu. 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 cvlindric 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 

 fonr, 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 05 mm; alar expanse 05 to 90 mm. 



Mexico, Central America, Brazil, ^"enezuela. 



5 N. corripiens Walker 



1860 Hermes corripiens ^\'alker, Ent. See. Lond. Trans, n. s. 5:180 



1861 C r y d a 1 i s livid a Hagen, Synopsis Neur. N. Am. p. 321 (nomrn 

 viiduvt) 



1869 N e u r m u s corripiens McLacblan, 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 



