POLYCENTROPUS. 293 



with testaceous pubescence, veins fulvous. (From the description 

 of Walker.) 



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



Hah. St. Martin's Falls, Albany River, Hudson's Bay (Barns- 

 ton). 



5. P. vestitus. 



Poly centr opus vestitus Hagen ! 



Luteo-fuscous, with fuscous hair; antennae yellow, a little annu- 

 lated with fuscous ; palpi luteous ; feet luteo-fuscous, the tarsi ob- 

 soletely annulated with yellow ; head and thorax with fuscous hair ; 

 the disk with yellow hair; anterior wings fuscous, with fuscous 

 hair; posterior wings black. Male. 



Length to tip of wings T millim. Alar expanse 13 millim. 



Hah. Washington (Osten Sacken). 



6. P. cinereus ! 



Polycentropus cinereus Hagen ! 



Fuscous, with fuscous and whitish hair; antennae fuscous, annu- 

 lated with white; palpi luteous, head with white hair, occiput each 

 side with fuscous hair ; disk of the thorax with white hair; feet luteo- 

 fuscous, the femora luteous; abdomen fuscous, beneath pale; an- 

 terior wings fuscous, with fuscous veins, and closely guttated with 

 white; posterior wings blackish-gray, ciliated with black. Male 

 and female. 



Length to tip of wings 8 — 10 millim. Alar expanse 15 — 19 

 millim. 



Hah. St. Lawrence River, Canada (Osten Sacken). 



7. P. confusus ! 



Polycentropus confusus Hagen ! 



Fuscous, with luteous hair; antennas yellow, annulated with fus- 

 cous ; palpi fuscous, annulated with pale ; disk of the head with 

 luteous hair; feet luteo-fuscous; abdomen fuscous; the apex in the 

 female triangular, acute; the anterior wings fuscous, closely gut- 

 tated with yellow ; posterior wings brownish-cinereous. Male and 

 female. 



Length to tip of wings 8 — 10 millim. Alar expanse 15 — 19 

 millim. 



Hah. Trenton Falls (Osten Sacken); Washington (id.). 



