LIMNOPHILUS. 261 



Length to tip of wings 15 raillim. Alar expanse 28 millim. 



Nab. Nova Scotia (Redman). 



It is allied to L. impurus, Rambur. 



23. L. subguttatus. 



Limnephilus subguttatus Walk. I Catal. 34, 52. 



Testaceous, with pale hair ; base of the anterior wings, margin 

 behind, and the apex subguttated with whitish, a fuscous spot at 

 the pterostigma which is broadly surrounded with hyaline ; poste- 

 rior wings subhyaline. (From the description of Walker.) 



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



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

 ston). 



It is allied to L. rufus Rambur. 



24. L. subpunctulatus ! 



Phryganea subpunctulata Zetterst. Ins. Lapp. 1065, 20. Limnephilus 

 stipatus Walk.! Catal. 29, 37. 



Black, tinged with gray ; covered with luteous hair ; antennre 

 fuscous, annulated with luteous ; thorax black-gray, above with a 

 double, luteous, hairy stripe ; abdomen annulated beneath with lu- 

 teous ; feet yellowish, with black spines ; wings whitish-hyaline, 

 somewhat clothed with snow-white hair, partly veined with fuscous, 

 marked with large, confluent, fuscous guttte, the anterior margin, 

 disk, and thyridium, almost immaculate ; posterior wings whitish- 

 hyaline. 



Female. Four anal appendages short, acute, yellowish, valvule 

 broader, emarginated. 



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



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

 ston) ; Arctic America, Mackenzie and Slave Rivers (Richard- 

 son) ; Europe, Umea, Lapland. 



25. L. trimaculatus ! . 



Phryganea trimaculata Zetterst.! Ins. Lapp. 1065, 18 ; Kolen. Tricliopt. 

 53, 7; Walk. Catal. 26, 27. Limnophilus partitus Walk.! Catal. 

 32, 45. 



Black, with black and white hair; antennas fuscous, annulated 

 with brown, the basal article black; feet testaceous, with black 



