Acroneuria kosztarabi Kondratieff & Kirchner, 1993

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-

Acroneuria kosztarabi Kondratieff & Kirchner, 1993

Notes

Acroneuria kosztarabi is commonly referred to as the Virginia Stone ( Stark et al. 2012). This species was known from a relatively small range from Ohio south to North Carolina and Tennessee ( Verdone et al. 2022, DeWalt et al. 2024). Verdone et al. (2022) recently provided evidence that Acroneuria kirchneri Stark & Kondratieff, 2004 is a junior subjective synonym of this species. Historical reports of A. trijuncta (Walker, 1852) by Needham (1925) pertain to this species. In New York, adult collection dates for this species range from late June to mid-July (Fig. 33 ). These records represent a new state record and a significant northward range extension. Our records are from large, low elevation lakes (see below) at elevations ranging from 28-99 m asl (Fig. 34 ) from Level IV Ecoregions Eastern Adirondack Foothills (58 ac) and Champlain Lowlands (83 b) in northeastern New York (Fig. 35 c ). No recent collections of this species have been made in Lake George. We collected pre-emergent nymphs from the undersides of large rocks on south-facing exposed shorelines of Lake Champlain. Our failed attempts to collect this species from accessible areas of the shoreline in May and June over the course of several years suggest that the nymphs of this species may spend much of their life cycle in deeper waters that are inaccessible to standard collection techniques. In Virginia and North Carolina Verdone et al. (2022) found larvae of A. kosztarabi in pools and runs of rivers in areas of lower velocity.

Figures

Figure 33. Adult flight period for 18 Perlidae species in New York State. Red fill indicates positive adult collections while gray shaded areas indicate adults are likely present but not reported.

Figure 34. Elevation box plot for 18 Perlidae species in New York State. Boxes indicate interquartile range, horizontal line in box represents median elevation, and outlliers are depicted with large circles.

Figure 35 c. Acroneuria kosztarabi