Varga, O. 2026. First record of the genus Orthocentrus Gravenhorst, 1829 (Hymenoptera, Ichneumonidae: Orthocentrinae) from Vietnam, with descriptions of nineteen new species. European Journal of Taxonomy. 1100, 1 (Sep. 2026), 1-72. DOI:https://doi.org/10.5852/ejt.2026.1100.3331.