288 NEUROPTERA OF NORTH AMERICA. 



4. H. alternans. 



Philopotamus alternans Walk.! Catal. 104, 8. 



Black, with hoary hair ; base of the antennas fulvous ; feet and 

 apices of the abdominal segments fulvous ; anterior wings fus- 

 cous, closely irrorated with hoary ; posterior wings cinereous. 

 (From the description of Walker.) 



Length to tip of wings 12 millim. Alar expanse 23 millim. 



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

 ston). 



5. H. indeclsa. 



Philopotamus indecisus Walk.! Catal. 104, 9. 



Blackish, beneath testaceous, antennas testaceous, annulated with 

 fuscous ; palpi testaceous, fulvous at base ; feet testaceous ; ante- 

 rior wings- cinereous, closely guttated with yellow. (From the 

 description of Walker.) 



Length to tip of wings 12 millim. Alar expanse 23 millim. 



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

 ston) ; Nova Scotia (Redman). 



Is this H. morosa ? 



6. H. reciproca. 



Philopotamus reciprocus Walk.! Catal. 104, 10. 



Blackish ; antennas and feet testaceous ; palpi ferruginous, with 

 the base black ; anterior wings subfuscous, closely irrorated with 

 yellow ; posterior wings pale fuscous. (From the description of 

 Walker.) 



Length to tip of wings 14 millim. Alar expanse 2t millim. 



Hah. North America ? 



It is very much like H. indecisa. 



7. H. dubia. 



Hy dropsy che dubia Walk.! Catal. 112, 33. 



Black, beneath testaceous ; antennas pale testaceous, annulated 

 with fuscous, the apex fuscous ; palpi ferruginous ; feet testaceous ; 

 anterior wings subfuscous, obsoletely irrorated ; posterior wings 

 subcinereous. (From the description of Walker.) 



Length to tip of wings 11 millim. Alar expanse 23 millim. 



Hab. North America ? 



