Acroneuria:

Earle, Jane I., 2009, New State Stonefly (Plecoptera) Records For Pennsylvania, With Additional Records And Information On Rare Species, Illiesia 5 (16), pp. 169-181 : 177

Acroneuria:

Although 11 species of Acroneuria have been reported from Pennsylvania, only 9 appear valid. Many records are from collections prior to the 1950’s before major species revisions, or are based on difficult to identify nymphs and need to be confirmed. The species most commonly collected as nymphs are A. abnormis and A. carolinensis (Banks) , which are found in small to medium sized, usually forested creeks. Acroneuria abnormis , the most commonly collected adult Acroneuria , is also found in rivers.