Allocapnia rickeri Frison .

This species is distributed throughout much of eastern North America and west into the Ozark Mountains (Ross & Ricker 1971; Poulton & Stewart 1991). A paratype locality is in the Apple River drainage in the unglaciated Driftless Area of northwestern Illinois (Frison 1929). Webb (2002) was unable to recollect this species from the Apple River drainage in his reassessment of the winter stoneflies of Illinois.

We present two new localities for the region. IL, Jo Daviess Co., Apple River, 7 km SW Millville at E Townsend Rd., 42.40481, -90.11692, 3/20/2009, R.E. DeWalt, 10♂, 5♀ (INHS) ; 2.5 km W Elizabeth at US-20, 42.31888, - 90.25408, 3/20/2009, R.E. DeWalt, 8♂, 3♀ (INHS) .