Isoperla signata

Isoperla signata (Banks, 1902) Notes This species is commonly referred to as the Transverse Stripetail (Stark et al. 2012) and has been recorded from Canada from Nova Scotia west to Manitoba (Szczytko and Kondratieff 2015, DeWalt et al. 2024). The distribution of the species in the USA, however, is more complex. Records are available from Maine south to Virginia and west to Minnesota and in turn south to Arkansas and Oklahoma (Hart et al. 2025, Szczytko and Kondratieff 2015, DeWalt et al. 2024). Ecological studies of I. signata have indicated a univoltine-slow larval life cycle (Krueger and Cook 1981, Jop and Szczytko 1984) from Minnesota and Wisconsin, respectively. Hilsenhoff and Billmyer (1973) reported this species from a wide range of stream sizes in Wisconsin. Adult collection dates for this species in New York range between early April and late July (Fig. 38) from elevations ranging from 131-597 m asl (Fig. 39) from small to medium-sized rivers in Level III Ecoregions Northeastern Highlands (58), Northern Allegheny Plateau (60), and Eastern Great Lakes Lowlands (83) (Fig. 43 d).