Alloperla petasata Surdick replaces Alloperla caudata Frison in its northern and eastern range in North America including Pennsylvania (Surdick 2004). Alloperla petasata ranges from the Canadian Maritimes south to Georgia; its sister species, A. caudata, is now restricted to Illinois, the Ozark- Ouachita Highlands, and the Lower Tennessee River in Alabama (Surdick 2004) and Mississippi (Willett and Stark 2009). New records: BEDFORD: (P) Blackberry Lick Run, PA Rte. 26, 9 June 2001, 1♂, 4♀; Blues Gap Run, 400 m east of Rte. T-323, 9 June 2001, 2♂, 3♀; INDIANA: (O) Little Yellow Creek, PA Rte. 259, 21 June 2000, 8♂, 3♀ (TWS), as Alloperla sp. in Yasik et al. (2002); PIKE: (D) Carley Brook, 1.5 km upstream of village of Carley Brook, 8 July 2003, 1♂ (TD). These sites are small forested creeks except for Little Yellow Creek, which is a 3rd order creek whose watershed has surface coal mines with alkaline mine drainage.

Published as part of Earle, Jane I., 2009, New State Stonefly (Plecoptera) Records For Pennsylvania, With Additional Records And Information On Rare Species, pp. 169-181 in Illiesia 5 (16) on page 176, DOI: 10.5281/zenodo.4759416