Isoperla nana (Walsh, 1862)

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 nana (Walsh, 1862)

Notes

Isoperla nana is currently referred to as the Least Stripetail ( Stark et al. 2012) and is known from Ontario and Quebec southwest through the Laurentian Great Lakes region to Kentucky ( Szczytko and Kondratieff 2015, DeWalt et al. 2024). In Wisconsin, this species has been reported from small streams and exhibited a univoltine life cycle ( Hilsenhoff and Billmyer 1973). In New York, adult collection dates range from late May through late June (Fig. 38 ). This species occupies lowland streams ranging in elevation from 69-317 m asl (Fig. 39 ) with records available from Level III Ecoregions Northeastern Highlands (58), Northeastern Coastal Lowlands (59), Northern Allegheny Plateau (60), and Eastern Great Lakes Lowlands (83) (Fig. 43 a ).

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 a. Isoperla nana