“…Basic characteristics by which the species within the genus Isoperla are distinguished are penial morphology, head and pronotal pattern, egg structures and drumming signals (Despax 1936;Illies 1952Illies , 1954Illies , 1966Sivec and Stark 2002;Murányi 2011;Michalik et al 2017). In the last few years, a considerable number of new Plecoptera taxa have been described, especially from China (Li et al 2013;Ji et al 2014;Li and Murányi 2015;Chen et al 2019;Cao et al 2020), but also in Europe, like Isoperla pesici Murányi, 2011; I. autumnalis Murányi, 2011;I. citrina Murányi, 2011 (Murányi 2011;Murányi et al 2016); I. vjosae Graf et Vitecek, 2018(Graf et al 2018; I. claudiae Graf et Konar, 2014(Graf et al 2014 and I. nagyi Murányi, Kovács et Graf, 2020(Murányi et al 2020.…”