Isoperla tripartita tripartita could easily be confused with I. tripartita recta Zwick, 1978 or I. obliqua Zwick, 1978. New descriptions and faunistic lists will be given in Murányi & Vinçon (in prep.).
Distribution in Turkey. Bolu, Kırklareli (Kazancı 2012); country record only: listed from Turkey (Kazancı 1983 b; Kazancı 2008). Map (Fig. 115).
Distribution and ecology. Isoperla t. tripartita is known from the Eastern Alps, Carpathian Basin, and the Balkans. Nymphs can be common in submontane streams and brooks but also in high mountain torrents. Kazancı (2012) does not indicate the subspecific identification of her material.