Pteronarcidae — Perlidae 57 



Order PLECOPTERA 



Compiled by J. G. Needham and P. W. Claassen 



Family PTERONARCIDAE 



Pteronarcys Newman 



P. dorsata Say. '"NY" ( Lucy Vv^. Smith). 



P. nobilis Hagen. General throughout NY, and ranging from Canada to Ga (Ndm). 



P. proteus Newm. Trenton Falls; Ithaca. 



P. biloba Newm. Trenton Falls; Ithaca. 



P. comstocki Smith. Trenton Falls; Wilmurt; Tarbel, Ds. 



Family PERLIDAE 

 Perlodes Banks 

 P. lineata Smith. Old Forge, Aug (Ndm). 



ISOGENUS Newman 

 I. frontalis Newm. Niagara Falls, Je. 



Perl A Geoff roy 



P. postica Wlk. Fall Cr., Ithaca, May (Ndm) ; Ft. Montgomery, May. 



P. hastata Bks. Axton, Je (M&H) ; Old Forge, Aug (Ndm) ; Woodworth's L., 



Je, Alex; Easton, May, Leon; Ringwood Hollow, near Ell-is, May, Wu. 

 P. bilobata Ndm. & Claas. Old Forge, Jl (Ndm). 

 P. capitata Pict. West Branch of Ausable R., Essex Co, Jl (Claas) ; Ogdensburg, 



Jl, Bet; Gloversville, Je, Alex; N. Fair Haven; Clyde, Jl ; West Falls, Jl; 



Ithaca, May-Jl ; McLean, Je ; Malloryville, Je ; Binghamton, Jl ; Nassau, Je. 

 P. ramosa Ndm. & Claas. Ithaca (CU). 

 P. immarginata Say. Keene Val., Aug; Wilmington, Aug; Mt. Whiteface, Aug; 



Ogdensburg, Jl ; Hamilton Co ; Enfield ; Gloversville, Je, Alex ; Ithaca, Mar- 



Sep; Coy Glen, Ithaca, Jl; Ludlowville, Aug. 

 P. media Wlk. Ogdensburg, Jl ; Crane Pond, Je; Wilmurt, Je; Mayfield, Je, 



Alex; Oswego, Je; Fulton, Je; Niagara Falls, Jl ; Buffalo, Jl; Ithaca, May. 



Alloperla Banks 



A. marginata Bks. Golden, Jl (Bks) ; Ithaca, Je, Sib. 



A. lateralis Bks. Gloversville, Je, and Woodworth's L., Je, Alex; Mix Cr. Val., 

 Cattaraugus Co, Je; Ithaca, May-Je; De Ruyter, Je ; Danby, Je; Ramapo, Je. 



A. mediana Bks. Newport, May; Cranberry L., Jl (Drk) ; Gloversville, Je, Alex; 

 Clinton, May, Pozvell; Enfield Falls and Ithaca, May; Niagara Falls, Je. 



A. imbecilla Say. Alcohol Br., Adirondack Lodge, Jl ; Sacandaga Pk., Je ; New- 

 field, Je. 



A. nanina Bks. West Branch, Ausable R., Jl ; Elizabethtown, Jl; Adirondack 

 Lodge, Jl; Ithaca, May-Jl; Oxford, Jl. 



