Isoperla orata Frison, 1942

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 orata Frison, 1942

Notes

Isoperla orata is commonly known as the Colorless Stripetail ( Stark et al. 2012). This species is known from Canada from Nova Scotia west to Quebec and in the USA from Maine southwest mainly along the Appalachian Mountains to Tennessee and South Carolina, with a disjunct distribution present in Minnesota ( Szczytko and Kondratieff 2015, DeWalt et al. 2024). Harper and Pilon (1970) reported the emergence of this species in early June in Quebec. In New York, adults have been collected between mid-May through early August (Fig. 38 ) from a wide range of elevations (175-821 m asl; Fig. 39 ). Although this species is known mainly from Level III Ecoregions Northeastern Highlands (58), Northern Allegheny Plateau (60), and Eastern Great Lakes Lowlands (83) (Fig. 43 b ), further collections in western New York would likely yield additional records.

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 b. Isoperla orata