Isoperla montana

Isoperla montana (Banks, 1898) Notes Isoperla montana is currently known as the Montane Stripetail (Stark et al. 2012). This species has been reported from Nova Scotia west to Ontario, Minnesota, and Indiana, and southeast along the Appalachian Mountains to Virginia (Szczytko and Kondratieff 2015, Verdone and Kondratieff 2017, DeWalt et al. 2024). Harper et al. (1991 b) found that larvae of I. montana displayed a univoltine-slow life cycle in Quebec. In their study, early instar larvae first appeared in June and July directly following the emergence of adults in May. In New York, the adult flight period extends from late March through late July (Fig. 38). Isoperla montana has been reported from elevations ranging from 3-544 m asl (Fig. 39) and appears to be widely distributed across the state (Fig. 42 e).