206 NEUROPTERA OF NORTH AMERICA. 



20. H. neglectus ! 



Hemerobius neglectus Hagen 1 



Yellow; head and sides of the prothorax fuscous ; antennae and 

 feet pale yellow; wings luteo-fuscous, the anterior ones densely 

 streaked with whitish-hyaline ; veins luteous, pointed with black 

 and fuscous ; 6 and 5 of the gradate veins luteous. 



Length to tip of wings 11 rnillim. Alar expanse 20 millim. 



Hob. Mexico (Ehrenberg ; Berlin Museum). 



1 1 1 1 Four sectors. 



21. H. longifrons. 



Hemerobius longifrons Walk. Catal. 291, 40. 



Testaceous, marked with fuscous ; antennae longer than the body, 

 fuscous annulated with pale ; abdomen piceous ; feet pale testace- 

 ous ; wings cinereous, anterior ones with three oblique, interrupted 

 fascise, and marginal spots, black ; veins pale testaceous, inter- 

 rupted with black ; gradate series two, broken ; sector 3 unifur- 

 cated. (From the description of Walker.) 



Length to tip of wings 10 millim. Alar expanse 18 millim. 



Hob. St. Martin's Falls, Albany River, Hudson's Bay (Barn- 

 ston). 



POLYSTOECHOTES BURM. 



Antennae short, moniliform ; subcosta and radius of the wings 

 confluent at the apex ; costal space of the anterior wings broader 

 at base, with a recurrent vein, forked : a gradate series of several 

 transverse veins ; last article of the maxillary palpi truncated. 



Larva perhaps aquatic. 



1. P. punctatus ! 



Semblis punctata Fab. ! Entom. Syst. II, 73, 4. Hemerobius nebulosus 

 Fab. Entom. Syst. Suppl. 202, 1 2. Hemerobius irroratus Say, 

 Long's Exped. II, 306, 1 ; Asa Fitch, Report, I, 92.Polystoechotes 

 sticticus Burm. Hand. II, 982, 1; Walk. Catal. 231, l.Osmylus 



validus Walk.! Catal. 233, 3. 



* 



Piceous, hairy; mouth testaceous; antennae piceous, with the 

 base testaceous ; head and thorax clothed with gray hair ; feet 

 hairy, testaceous, the anterior ones annulated with fuscous, apex 

 of the tarsal articles fuscous ; abdomen piceous, beneath fuscous ; 



