Soyedina washingtoni

Soyedina washingtoni (Claassen, 1923) Notes Soyedina washingtoni is commonly known as the Vernal Forestfly (Stark et al. 2012). This species has been reported from the Canadian Maritime Provinces southwest to West Virginia (DeWalt et al. 2024, Grubbs and Baumann 2023). No life history or ecological information is available regarding this species. Adult collection dates for S. washingtoni in the state range from mid-March through early May (Fig. 18). In New York, this species was collected at higher elevations (234-536 m asl; Fig. 19) from springs and seeps in Level IV Ecoregions Taconic Mountains (58 a), Taconic Foothills (58 x), Catskill High Peaks (58 y), Adirondack High Peaks (58 z), 58 ac Eastern Adirondack Foothills (58 ac), and Central Adirondacks (58 ad) (Fig. 21 d).