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 burksi Frison, 1942 was reported from Maryland by Duffield & Nelson (1990) ( Fig. 24 ). The author has not collected males of this species from western Maryland , although undetermined females that may refer to either I. burksi or I. orata Frison, 1942 have been found at two localities ( Fig. 24 ). Males with extruded aedeagi or females with mature eggs are needed for positive determination.