Isoperla nana

Isoperla nana (Walsh, 1862) Notes Isoperla nana is currently referred to as the Least Stripetail (Stark et al. 2012) and is known from Ontario and Quebec southwest through the Laurentian Great Lakes region to Kentucky (Szczytko and Kondratieff 2015, DeWalt et al. 2024). In Wisconsin, this species has been reported from small streams and exhibited a univoltine life cycle (Hilsenhoff and Billmyer 1973). In New York, adult collection dates range from late May through late June (Fig. 38). This species occupies lowland streams ranging in elevation from 69-317 m asl (Fig. 39) with records available from Level III Ecoregions Northeastern Highlands (58), Northeastern Coastal Lowlands (59), Northern Allegheny Plateau (60), and Eastern Great Lakes Lowlands (83) (Fig. 43 a).