Ostrocerca albidipennis (Walker, 1852)

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-

Ostrocerca albidipennis (Walker, 1852)

Notes

This species is commonly referred to as the Whitetailed Forestfly ( Stark et al. 2012). The distribution of O. albidipennis extends from Nova Scotia west to Michigan and southwest along the Appalachian Mountains to Ohio, West Virginia, and Virginia ( DeWalt et al. 2024, Grubbs and Baumann 2023). Mackay (1969) reported a fast univoltine life cycle from southern Quebec and the possibility of a summer-autumn egg diapause, with adult emergence during May and June and larval recruitment beginning in early December. This species has been previously reported from smaller streams and spring-fed seeps many of which are dry during the summer months ( Harper and Hynes 1971 b). New York records are mainly from Level III Ecoregions Northeast Highlands (58), Northern Allegheny Plateau (60), and Eastern Great Lakes Lowlands (83) (Fig. 17 f ) with adult collection dates ranging from early May to late June (Fig. 18 ). Elevations in New York range from 119-729 m asl (Fig. 19 ).

Figures

Figure 18. Adult flight period for 15 Nemouridae species in New York State. Red fill indicates positive adult collections while gray shaded areas indicate adults are likely present but not reported.

Figure 19. Elevation box plot for 15 Nemouridae species in New York State. Boxes indicate interquartile range, horizontal line in box represents median elevation, and outliers are depicted with large circles.

Figure 17 f. Ostrocerca albidipennis