Updates To The Stonefly Fauna Of Illinois And Indiana Author DeWalt, R. Edward Author Grubbs, Scott A. Department of Biology and Center for Biodiversity Studies Western Kentucky University Bowling Green, KY 42101 U. S. A. text Illiesia 2011 2011-01-31 7 3 31 50 journal article http://doi.org/10.5281/zenodo.4760399 f4c5df5c-bfc2-427a-933a-59bd8530b0a7 1854-0392 4760399 Isoperla mohri Frison. This species was described from southern Illinois from low-gradient streams and is found in similar habitats in Kansas and Missouri southward to Louisiana ( Poulton & Stewart 1991), but has never been reported from Indiana ( Grubbs 2004 ). We present several new records for Illinois that expand its range within the state. IL , Clay Co. , Raccoon Creek , 5.5 km SW Flora , dwnstr. CR 900E, 38.6594 , -88.5276 W , 4/11/2001 , R.E. DeWalt , 45N ( INHS ) ; Coles Co. , [ Tributary Embarras River ], Fox Ridge State Park , [ 39.403 , -88.159 ], 4/12/1941 , C.O. Mohr , 2N ( INHS ) ; Jefferson Co. , Horse Creek , 13 km E Dix , 38.4386 , -88.7731 , 4/10/2003 , R.E. DeWalt , 11 N ( INHS ) ; Rayse Creek , Dix , Pleasant Rd. 38.44299 , - 88.9331 , 4/25/2007 , R.E. DeWalt , ♂ , ♀ (reared) ( INHS ) ; Lawrence Co. , Tributary Bonpas Creek , 6 km S Sumner , 38.6554 , -87.8628 , 4/6/1999 , R.E. DeWalt , 23N ( INHS ) ; Wabash Co. , Bonpas Creek , CR 1900N, 5.0 km E West Salem , 38.5267 , -87.9429 , 4/3/2003 , R.E. DeWalt , 2N ( INHS ) .