104 HYDROPSYCHID^. 



8. PHLLOPOTAMUS ALTERNANS. 



Niger, cano-hirtus ; (interims basi, abdominis segmentis apice pedi- 

 busque fulvis ; alee anticce fuscce, ca.no confer tim irroratce, 

 posticce cinerece. 



Black, clothed with hoary hairs : antenna? tawny at the base : 

 hind borders of the abdominal segments and legs tawny : fore-wings 

 brown, mostly thickly covered with hoary dots ; hind-wings gray. 

 Length of the body 3\ lines ; of the wings 11 lines. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 

 G. Barnston, Esq. 



9. PHILOPOTAMDS INDECISUS. 



Nigricans, subtus testaceus ; antennae testacece, fusco annulate ; 

 pedes testacei ; alee cinerece, anticce confertim flavo guttatce. 



Blackish, testaceous beneath : palpi testaceous, tawny towards 

 the base: antenna? testaceous, with a brown ring on each joint: 

 legs testaceous : wings gray ; fore-wings slightly brown, adorned 

 with numerous pale yellow dots of various size. Length of the 

 body 3 lines ; of the wings 10i lines. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 



G. Barnston, Esq. 



b. Nova Scotia. From Lieut. Redman's collection. 



10. PHILOPOTAMUS EECIPROCUS. 



Nigricans ; antennis pedibusque testaceis ; palpi ferruginei, basi 

 nigri ; alee anticce subfuscce, flavo confertim irroratce, posticce 

 subcinerece. 



Blackish : palpi ferruginous, black towards the base : antennae 

 and legs testaceous: fore-wings slightly brown, with numerous pale 

 yellow dots of various size ; hind-wings pale brown. Length of the 

 body 3 lines ; of the wings 13 lines. 



Closely allied to P. indecisus. 

 a. North America ? Presented by the Entomological Club. 



11. PHILOPOTAMUS DISTINCTUS. 



Niger ; palpi et pedes obscure testacei ; alee anticce fusco- cinerece 

 flavo confertim guttatce, posticce cinerece, 



