Isoperla pseudosimilis 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 pseudosimilis Szczytko & Kondratieff, 2015

Notes

This species is commonly referred to as the Confusing Stripetail ( Stark et al. 2012). Isoperla pseudosimilis is an Appalachian-distributed species reported from Maine southwest to Tennessee and North Carolina ( Szczytko and Kondratieff 2015, DeWalt et al. 2024). Isoperla pseudosimilis is a common species in New York and prior to 2015 most records were referred to as I. similis . Adults have been collected in New York from early April through late June (Fig. 38 ) from elevations ranging from 119-480 m asl (Fig. 39 ), with numerous records from elevated regions across the state (Fig. 43 c ). This species is especially common in small spring-fed streams.

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 43 c. Isoperla pseudosimilis