Materials to the Knowledge of Polish Sawflies : The Genus «Dolerus» Panzar, 1801 (Hymenoptera, Symphyta Tenthredinidae, Selandriinae) : Part IX - «Dolerus cothurnatus» Serville, 1823

World Scientific News, Tom 87 (2017) s. 251-255
Jerzy Borowski, Dawid Marczak