Morishita, Shunsuke, and Kyohei Watanabe. “Review of the Subgenus Ceratopius Clément, 1927 of the Genus Metopius Panzer (Hymenoptera: Ichneumonidae: Metopiinae) from Japan”. Zootaxa 5837, no. 2 (June 23, 2026): 257–288. Accessed June 25, 2026. https://mapress.com/zt/article/view/zootaxa.5837.2.3.