486 PROCEEDINGS OF THE ACADEMY OF [Sept., 



blackish or grayish, black subterminally, the lateral margins broadly 

 paler. Hypopygiiim with the ninth tergite (see Plate XIX, fig. 49) 

 yellow caudally, black basally, with the caudal margin produced 

 into two long lobes with the tips blackened, minutely spiculose. 

 Ninth pleurite very extensive though incomplete, the pleural suture 

 being indicated beneath, curved dorsad at the end; the ventral inner 

 angle of the pleurite is densely clothed with long hairs; two pleural 

 appendages (see Plate XX, fig. 63) the outer appendage flattened, 

 broad, pale, the tip obtusely rounded; the inner appendage is com- 

 plex, more chitinized, with a ventral arm (y) directed caudad and 

 ventrad, its tip with a few scattered irregular teeth; the dorsal arm 

 (d) deeply concave beneath. Guard of the penis long, slender, 

 prominent. 



Habitat. — Northeastern United States. 



Holotype, cf , Simmons Woods, Fulton Co., N. Y., June 9, 1914 

 (Alexander). 



Allotype, 9 , Orono, Penobscot Co., Me., June 14, 1913 (Alexander). 



Paratypes, No. 1, 3 cf 's, topotypic; No. 4, "The Glen," Ithaca, 

 Tompkins Co., N. Y., May 30, 1911 (Alexander); No. 5, 2 c^'s, 

 Orono, Penobscot Co., Me., June 14, 1913 (Alexander); No. 7, 9, 

 Ithaca, Tompkins Co., N. Y., reared. May 13, 1914; No. 8, 2 cT's, 

 Indian Castle, Herkimer Co., N. Y., June 13, 1915 (Alexander). 



The types are in the collection of the author. 



The specific name is that of the Indian tribe, one of the Five Nations. 



The type specimen was taken in Simmon's woods, Gloversville, 

 N. Y., on June 9, 1914. It occurred along a small w^oodland stream 

 supporting a rich vegetation with decided Canadian tendencies, the 

 principal species being Osmunda regalis, 0. cinnamomea, 0. Clay- 

 toniana, Onoclea sensibilis, very large and sterile fronds of Equisetum 

 sylvaticuni and E. arvense, Taxus canadensis, Streptopus roseiis, 

 Clintonia horealis, Srnilacina racemosa, Medeola virginiana, Coptis 

 trifolia, Ranunculus septentrionalis, Caltha palustris, Stellaria horealis, 

 Dalibarda repens, Impatiens hiflora, Viola cucullata and Senecio 

 aureus. The crane-flies associated mth this species at this date 

 were Limnohia solitaria, Dicranomyia pubipennis, AdelpJiomyia 

 minuta, Limnophila subcostata, L. rufibasis, L. toxoneura, L. recondita, 

 L. fuscovaria, L. alleni, Ulomorpha pilosella, Tricyphona calcar, 

 T. inconsfans, Rhaphidolahis flaveola, R. rubescens, Liogma nodicornis, 

 Cylindrotoma tarsalis, Oropeza venosa, Tipula collaris, T. tephro- 

 cephala, T. pallida, T. (Trichotipula) oropezoides and Xiphura fron- 

 talis, a notable assemblage of northern or Canadian forms. 



