Leuctra grandis Banks, 1906 Notes This Appalachian-distributed species is commonly referred to as the Grand Needlefly (Stark et al. 2012) and has been reported from New Brunswick in Canada and in the USA from Maine southwest to Alabama (DeWalt et al. 2024). Adult collection dates for the state range from mid-May to mid-July (Fig. 13). In New York, this species was collected from medium-sized streams from a broad range of elevations from 113-1262 m asl (Fig. 14). This species is common in cold streams and rivers throughout the Level III Ecoregions Northeast Highlands (58), Northern Allegheny Plateau (60), and Eastern Great Lakes Lowlands (83) (Fig. 15 e), and is often associated with the more common L. sibleyi.

Published as part of 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, pp. e 158952 in Biodiversity Data Journal 13 on page e158952, DOI: 10.3897/BDJ.13.e158952