Tenthredinidae 891 



P. decrepita MacG. Ithaca, type. 



P. dedocora MacG. Ithaca, type. 



P. demissa MacG. Ithaca, type. 



P. derosa MacG. Ithaca, type. 



P. desmodioides (Walsh). Buffalo, Jl (CU Ecoii) ; Richfield Sps. (Marlatt). 



P. dotata MacG. Ithaca, type. 



P. gracilis Marl. Gouverneur (Lint) ; Van Cort. Pk., Dyar. Larva causes galls on 

 leaves of Salix petiolata. 



P. hyalina (Nort.). Saranac Inn, Ndm (MacG-Ill) ; Johnstown, May (NYS) ; 

 Canandaigua, Oct (Felt) ; Ithaca, Jl (CU) ; Richfield Sps., Pergande (Mar- 

 latt) ; Hudson Falls, Jl (Felt) ; Nassau, May (NYS) ; Dunkirk, Jl (NYS) ; 

 LI: Bellport, Dyar. Larva causes galls on leaves of smooth-leaved v^illow, 

 according to Dyar ; according to records from Cornell collections, the gall 

 occurs on Salix fragilis. 



P. pallicomis (Nort.). Plattsburg, Aug (Dyar-US) ; Van Cort. Pk. (Dyar). 



P. pisum (Walsh). Ithaca, May (CU, MacG-Ill) ; Richfield Sps., Pergande (Mar- 

 latt) ; E. Steamburg, ELHorton (Marlatt). Larva causes galls on the leaves 

 of Salix discolor. 



P. pomum (Walsh). Canandaigua, Oct (Felt) ; Ithaca (CU) ; Albany, Yg (NYS) ; 



W. Albany, Lint (NYS) ; Hudson Falls, Je (Feh) ; Easton Hills, Sep (NYS) ; 



vie. of NYC (Bt). Larva causes galls on leaves of Salix cordata and S. 



discolor. 

 P. populi Marl. Vic. NYC, Dyar (type-US). Larva folds the edge of the leaf of 



Populus grandidentata. 

 P. robusta Marl. Vic. NYC, Dyar. Larva folds the edge of the leaf of Populus 



tremuloides. 

 P. terminalis Marl. Van Cort. Pk., Dyar] NYC, Dyar (US), type. 



Pteronidea Rohwer 



(Pteronus auctt.) 



P. cornelli Marl. Ithaca, Jl (CU) ; SI, Je (Ds) ; LI: Montauk, Jl (MacG-Schott). 

 Larva feeds on foliage of Salix. 



P. coryli (Cress.). Plattsburg, Jl, Dyar; SI, May (Ds). Larva feeds on foliage of 

 Corylus rostrata. 



P. dyari Marl. "NY", Dyar (type-US). 



P. edita MacG. Ithaca, type. 



P. edura MacG. Ithaca, type. 



P. erythrogastra (Nort.). Ithaca, Bks (US) ; Karner, Aug (NYS). Yuasa records 

 the larva as feeding on foliage of Carpinus caroliniana, Morus alba, and 

 Alnus rugosa. 



P. fulvicrus (Prov.). Ithaca (MacG-Ill). 



P. hudsonii-magna (Dyar). Plattsburg, Aug 31, 1893, Dyar (US). Larva feeds 

 on foliage of poplar. 



P. hyalina (Marl.). Plattsburg, Je 6, Dyar (US). Larva feeds on foliage of 

 w^hite birch. 



P. integra (Say). LI: Brookhaven, Jl 7, Dyar (US). 



