246 NEUROPTERA OE NORTH AMERICA. 



BITTACUS Latreille. 



Ocelli three; wings narrow; antennae setaceous, very slender; 

 abdomen rather long, cylindrical, feet longer than the wiogs, the 

 apex of the tibiae calcarated; tarsi with a single, long, simple nail. 



1. B. mexicanus. 



Bittacus mexicanus Klug! Act. Berol. 1836, 99, 6. Walk. Catal. 466, 6. 



Testaceous ; head with a middle spot, and apices of the femora 

 and tibiae with a vestige, fuscous; antennae almost unclothed; wings 

 subflavescent, veins and transverse marks obscurer; appendages 

 of the male long, narrow, incurved. (From the description of 

 Klug.) 



Alar expanse 46 millim. 



Hab. Mexico (Deppe). 



2. B. pilicornis ! 



Bittacus pilicornis Westw. Trans. Ent. Soc. Lond. IV, 196, 4. Walk. 

 Catal. 468, 15. 



Pale fusco-luteous, shining ; head fuscous between the ocelli ; 

 antennae luteo-fuscous, with long and dense pile ; wings sublutes- 

 cent, transverse veins obsoletely banded with fuscous ; superior 

 appendages of the male broad, triangular, flat. 



Alar expanse 40 millim. 



Hab. Trenton Falls (Osten Sacken); La Chine near Montreal 

 (Barnston). 



3. B. strigosus ! 



Bittacus strigosus Hagen ! 



Pale testaceous, shining ; head black around the ocelli ; palpi 

 black ; antennae pale, sparingly and shortly pilose ; apex of the 

 femora and tibiae blackish-fuscous; wings hyaline, with some basal, 

 fuscous points, transverse veins broadly banded with fuscous ; 

 pterostigma a little clouded ; superior appendages of the male 

 broad, oblong, the superior margin broadly excised, pilose. 



Alar expanse 40 millim. 



Hab. Chicago ; Washington ; St. Louis (Osten Sacken). 



