134 HTDBOPTILID^. 



11. HYDROPTILA TENEBROSA. 



Nigricans; antenna fuscce ; pedes testacei ; alee nigro-cinerece. 



Blackish : antennae brown : legs testaceous : wings blackish 

 gray, fringed ; veins black. Length of the body 1 line ; of the wings 

 3 lines. 



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

 by G. Barnston, Esq. 



12. HYDROPTILA? PARVA. 



Testacea ; abdominis dor sum piceum ; alee albidce. 

 Hydroptila parva, Barnston, MSS. 



A mutilated specimen. Testaceous : abdomen pitchy above : 

 wings whitish. Length of the body 1 line ; of the wings 3 lines. 



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

 G. Barnston, Esq. 



Genus 2. AGRAULES. 



"Tibiae antica3 non calcaratae, intermedia? tricalcaratae, posticae 

 quadriealcaratae ; calcares externa breviora : tibiae posticae unilate- 

 raliter pinnatae. Alae anticae anastomosi antica incompleta, venis 

 omnibus repraesentatis ; anastomosis in alis posticis nulla ; fimbriae 

 longissimae : alae apice acuminata?. Antennae ubique sequales, ar- 

 ticulis infibulatis." 

 Agraylea, Curt. Phil. Mag. iv. 217 ; Steph. III. Brit. Ent. Mand. 



vi. 153 ; Westw. 

 Agraules, Ayassiz. 

 Hydrorchestria, Kolenati, Gen. et Sp. Trick. 103, 28, pi. 3, f. 28, y. 



1. AGRAULES SEXMACULATA. 



Ochracea ; antennce apice fuscce ; alee anticce fuscce, maculis sex 



albidis. Long. ; alar. 4 lin. 

 Agraylea sexmaculata, Curt. Phil. Mag. iv. 217. Steph. III. Brit. 



'Ent. Mand.vi. 153, 1. 

 Hydrorchestria sexmaculata, KoL Gen. et Sp. Trich. 103, 1. 



Europe. 



