Perkovsky, E. E.; Olmi, M.; Vasilenko, D. V.; Capradossi, L.; Guglielmino, A. First Bocchus Ashmead (Hymenoptera: Dryinidae) from Upper Eocene Rovno Amber: B. schmalhauseni Sp. Nov. Zootaxa 2020, 4819, 544–556.