Isoperla dicala Frison

Isoperla dicala Frison.

The distribution of this species encompasses most of eastern North America (Hilsenhoff & Billmyer 1973; Poulton & Stewart 1991; DeWalt et al. 2010). This species has never been reported from Illinois, but could still be found in the Kankakee or Rock River drainages. In Indiana, it has been reported from two northern counties and the Ohio River at Floyd County (Grubbs 2004).

We present several additional northern Indiana records. IN, Elkhart Co., Little Elkhart River, Bristol at canoe livery, 41.7231, -85.8109, 3/19/2006, R.E. DeWalt, 21N (INHS); St. Joseph River, Bristol at Congdon Park, 41.7230, -85.8167, 3/9/2006, R.E. DeWalt, 4N (INHS); Elkhart River, Bainter Town, River Preserve County Park, 41.5176, -85.8133, 5/25/2006, R.E. DeWalt, ♂, ♀ (INHS); Fulton Co., Tippecanoe River, Talma opposite IN-25 at IDNR boat ramp, 41.15336, - 86.13932, 5/24/2006, R.E. DeWalt, ♂ (INHS); LaGrange Co., Pigeon River, at Scott Mill, Park S of Scott, 41.74013, -85.55702, 4/3/2004, M.J.M., 6N (UND); Pigeon River, 4.5 km W Howe at IN-120, 41.7185, -85.4766, 6/27/2006, R.E. DeWalt, ♂ (INHS); Pulaski Co., Tippecanoe River, 8 km NNE Winamac, Tippecanoe State Park, 41.1316, -86.588, 6/28/2006, R.E. DeWalt, exuvium (INHS); Starke Co., Yellow River, near Knox, [41.30289, -86.62127], 4/24/1997, G. Bright, 2 N (PERC); Kankakee River, 0.25 km N English Lake, Yellow and Kankakee Rivers FWMA, 41.2720, -86.8246, 4/30/2006, R.E. DeWalt, S.K. Ferguson, 7N (INHS), Steuben Co., Fish Creek, 3.7 km E Hamilton along CR 775S, Douglas Woods Nature Preserve, TNC, 41.5327, -84.8688, 6/23/2006, R.E. DeWalt, ♀ (INHS).