Isoperla burksi Frison, 1942

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 : 72

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.

Figures

Figs 24–25. 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). 24, I. burksi and I. montana; 25, I. dicala and I. holochlora. MD = Maryland, PA = Pennsylvania, VA = Virginia, WV = West Virginia.