Isoperla gibbsae Harper 1971

Isoperla gibbsae Harper, 1971 Notes This species is currently known as the Quebec Stripetail (Stark et al. 2012). Isoperla gibbsae has been reported from scattered locations from Quebec south to New York and Connecticut, with unsubstantiated records from Maryland and West Virginia (Szczytko and Kondratieff 2015, DeWalt et al. 2024). In New York, a small series of adults was collected on May 21, 1967 (Fig. 38) at 54 m asl (Fig. 39) from the town of Highland in Level IV Ecoregion Hudson Valley (59 i) (Fig. 41 f). The lack of any verified recent collections of this species may be cause for concern.