Isoperla arcana and Isoperla borisi (Plecoptera: Perlodidae), two new stonefly species from North Carolina, U.S.A. with notes on the distribution of Isoperla powhatan - Beaty, Steven R. (Illiesia, 2017)
Keywords: biotski indeks; entomologija; Isoperla arcana; Isoperla borisi; razširjenost; Severna Karolina; vrbnice