HYDROPSYCHE. ^ 287 



grayish-fuscous, with snow-white hair ; thorax grayish-fuscous, 

 with a broad, medial stripe of white hair; eyes of the male larger, 

 approximated ; palpi luteo-fuscous ; abdomen fuscous ; feet pale 

 luteous ; anterior wings blackish-gray, densely flecked with white; 

 veins black ; posterior wings cinereous, luteous at base. Male 

 and female. 



Length to tip of wings 13 millim. Alar expanse 25 millim. 



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

 I possess a male from jS". Red River (Kennicott) which is extremely 

 like this, but the eyes are larger, more approximate, the front 

 hardly broader than the eyes. Is it different ? 



2. H. morosa ! 



JBydropsyche morosa Hagen ! 



Luteo-fuscous, with luteous hair ; antennae luteous yellow, an- 

 nulated with fuscous ; palpi fuscous ; head and thorax luteo-fus- 

 cous, with luteous hair ; feet luteous ; abdomen fuscous ; anterior 

 wings luteo-fuscous, densely guttated with luteous, veins luteo- 

 fuscous ; posterior wings luteo-cinereous. Male and female. 



Length to tip of wings 10 — 13 millim. Alar expanse 19 — 25 

 millim. 



Hab. St. Lawrence River, Canada ; Washington (Osten Sac- 

 ken) ; N. Red River (Kennicott) ; Trenton Falls, New York 

 (Osten Sacken). 



• 



3. H. phalerata! 

 Hydropsyche phalerata Hagen 1 



Fuscous, with luteous hair ; antennae fuscous, annulated with 

 luteous ', palpi and feet luteous; head and thorax fuscous, with 

 luteous hair ; anterior wings fuscous, guttated with luteous, with 

 larger spots at the base, pterostigma and anal angle; veins fuscous; 

 posterior wings blackish-gray. Male and female. 



A variety has the anterior wings less spotted, the female ob- 

 scurer. 



Length to tip of wings T — 10 millim. Alar expanse 13 — 19 

 millim. 



Hah. St. Lawrence River, Canada ; Washington (Osten Sac- 

 ken) ; Pennsylvania (Zimmerman). 



I 



