Isoperla kirchneri Szczytko & Kondratieff, 2015

Grubbs, Scott A., 2018, An Update On The Stonefly Fauna (Insecta, Plecoptera) Of Maryland, Including New And Emended State Records And An Updated State Checklist, Illiesia 14 (4), pp. 65-80 : 74

Isoperla kirchneri Szczytko & Kondratieff, 2015

was described from Virginia and is currently known from New York south to North Carolina and Tennessee ( DeWalt et al. 2018). The presence of this species in western Maryland is not surprising ( Fig. 26 ). The specimens reported as I. namata Frison, 1942 by Grubbs (1997) were identified using Szczytko & Kondratieff (2015) and all now refer to I. kirchneri . Isoperla namata is herein removed from the Maryland state list.

Figures

Figs. 26–27. Distribution map of four Isoperla species in western Maryland, USA, based on material examined during this study plus records in Duffield & Nelson (1990) and Szczytko & Kondratieff (2015). 26, I. gibbsae and I. kirchneri; 27, I. pseudosimilis and I. similis. MD = Maryland, PA = Pennsylvania, VA = Virginia, WV = West Virginia.