Isoperla kirchneri Szczytko & Kondratieff, 2015

Myers, Luke William, Kondratieff, Boris C, Grubbs, Scott A, Pett, Lindsey A, DeWalt, R. Edward, Mihuc, Timothy B & Hart, Lily Veronica, 2025, Distributional and species richness patterns of the stoneflies (Insecta, Plecoptera) in New York State, Biodiversity Data Journal 13, pp. e 158952-e 158952 : e158952-

Isoperla kirchneri Szczytko & Kondratieff, 2015

Notes

This species is currently referred to as the Two-spine Stripetail ( Stark et al. 2012). Isoperla kirchneri is primarily an Appalachian-distributed species reported from New York south to Tennessee and North Carolina ( Szczytko and Kondratieff 2015, DeWalt et al. 2024). Szczytko and Kondratieff (2015) suggested that this species has a univoltine-slow life cycle. In New York, adults of I. kirchneri have been collected from mid-March through mid-June (Fig. 38 ) at elevations of 101-570 m asl (Fig. 39 ) from streams and rivers in Level IV Ecoregions Catskill High Peaks (58 y), Eastern Adirondack Foothills (58 ac), Glaciated Low Allegheny Plateau (60 a), Champlain Lowlands (83 b), and Upper St. Lawrence Valley (83 e) (Fig. 42 b ). This species is likely more common and widespread in the state.

Figures

Figure 38. Adult flight period for 28 Perlodidae species in New York State. Red fill indicates positive adult collections while gray shaded areas indicate adults are likely present but not reported.

Figure 39. Elevation box plot for 28 Perlodidae species in New York State. Boxes indicate interquartile range, horizontal line in box represents median elevation, and outlliers are depicted with large circles.

Figure 42 b. Isoperla kirchneri