292 NEUROPTERA OF NORTH AMERICA. 



POLYCENTROPUS Curtis. 



Spurs arranged 3, 4, 4; ocelli absent; female with the interme- 

 diate feet dilated ; antennas thick, rather short. 



1. P. validus. 



Polycentropus validus Walk. ! Catal. 100, 10. 



Blackish, with yellow hair, beneath ferruginous; maxillary palpi 

 testaceous, the first article black ; antennas stout, fulvous ; feet tes- 

 taceous ; wings cinereous, with yellow pubescence. (From the de- 

 scription of Walker.) - , 



Length to tip of wings 8 millim. Alar expanse 15 millim. 



Hab. United States (Doubleday). 



2. P. crassicornis. 



Polycentropus crassicornis Walk. ! Catal. 101, 11. 



Ferruginous, densely clothed with yellow hair, beneath testa- 

 ceous; antennas stout, fulvous; palpi and feet testaceous; wings 

 cinereous, the anterior ones with yellow pubescence and irroration. 

 (From the description of Walker.) 



Length to tip of wings 7 — 9 millim. Alar expanse 13 — 16 

 millim. 



Hab. Georgia (Abbot). 



A variety has the anterior wings immaculate. 



3. P. invarius. 



Polycentropus invarius Walk..! Catal. 101, 12. 



Fulvous, with golden hair; vertex and disk of the thorax black; 

 antennas black, the base fulvous; feet testaceous; anterior wings 

 subfuscous, with ferruginous veins; posterior wings cinereous. 

 (From the description of Walker.) 



Length to tip of wings 9 millim. Alar expanse 16 millim. 

 Hab. Nova Scotia (Redman). 



4. P. crepuscularis. 



Brachycentrus crepuscularis Walk. ! Catal. 87, 6. 



Black, with luteous hair; antennas testaceous, obsoletely annu- 

 lated with fuscous, the apex black ; apices of the abdominal seg- 

 ments, and the legs testaceous ; wings cinereous, the anterior ones 



