Perkovsky, E.E., Olmi, M., Vasilenko, D.V., Capradossi, L. & Guglielmino, A. (2020) First Bocchus Ashmead (Hymenoptera: Dryinidae) from Upper Eocene Rovno amber: B. schmalhauseni sp. nov. Zootaxa, 4819 (3), 544–556.