Materials to the Knowledge of Polish Sawflies : The Genus «Dolerus» Panzer, 1801 (Hymenoptera, Symphyta, Tenthredinidae, Selandriinae) : Part XVI - «Dolerus Harwoodi» Benson, 1947

World Scientific News, Tom 111 (2018) s. 167-174
Jerzy Borowski, Marek Sławski