An Update On The Stonefly Fauna (Insecta, Plecoptera) Of Maryland, Including New And Emended State Records And An Updated State Checklist Author Grubbs, Scott A. Department of Biology and Center for Biodiversity Studies, Western Kentucky University, Bowling Green, Kentucky 42101, U. S. A. E-mail: scott. grubbs @ wku. edu scott.grubbs@wku.edu text Illiesia 2018 14 4 65 80 journal article http://doi.org/10.5281/zenodo.4761234 193525f9-e9b4-4c47-a842-d66e83775ecc 1854-0392 4761234 D522B9EC-BAA9-49FD-AC2401BFF6627203 Isoperla pseudosimilis Szczytko & Kondratieff 2015 was described from upstate New York and is currently known from the New England states south to North Carolina and Tennessee ( DeWalt et al. 2018 ). This montane species was likewise expected from Maryland and all material determined by the author in the mid-1990s as I. similis (Hagen, 1861) were newly determined as I. pseudosimilis using Szczytko & Kondratieff (2015) ( Fig. 27 ).