Perkovsky, E.E., Olmi, M., Vasilenko, D.V., Capradossi, L. and Guglielmino, A. 2020. First Bocchus Ashmead (Hymenoptera: Dryinidae) from Upper Eocene Rovno amber: B. schmalhauseni sp. nov. Zootaxa. 4819, 3 (Jul. 2020), 544–556. DOI:https://doi.org/10.11646/zootaxa.4819.3.6.