Sweltsa hoffmani Kondratieff & Kirchner 2009

Sweltsa hoffmani Kondratieff & Kirchner, 2009 Notes This species is commonly referred to as the Plateau Sallfly (Stark et al. 2012), and is known from unglaciated portions of the Alleghany and Cumberland Plateaus from New York southwest to Alabama and west across Ohio (DeWalt et al. 2016) to Indiana (DeWalt and Grubbs 2011, Kondratieff and Kirchner 2009, DeWalt et al. 2024). Fishbeck (1987) reported an early June to mid-July emergence of this species (as S. onkos) from Gray’s Run in northeastern Ohio. In New York, adults of this species have been recorded from early May through early June (Fig. 26) at elevations ranging 300-422 m asl (Fig. 27) from small streams in Level IV Ecoregions Glaciated Low Allegheny Plateau (60 a), Low Lime Drift Plain (61 c), and Finger Lakes Uplands and Gorges (60 d) (Fig. 29 f).