Leuctra grandis Banks, 1906

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-

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 .

Figures

Figure 13. Adult flight period for 13 Leuctridae species in New York State. Red fill indicates positive adult collections while gray shaded areas indicate adults are likely present but not reported.

Figure 14. Elevation box plot for 13 Leuctrdae species in New York State. Boxes indicate interquartile range, horizontal line in box represents median elevation, and outliers are depicted with large circles.

Figure 15 e. Leuctra grandis