Dien, Bui Trong, Nguyen Thanh Manh, Mai Van Thai, Vu Thi Thuong, and Nguyen Thi Phuong Lien. 2021. “Taxonomic Notes on the Genus <i>Ectopioglossa</I> Perkins, 1912 (Hymenoptera: Vespidae: Eumeninae) from Vietnam, With New Records of Two Species and Key to Species”. Academia Journal of Biology 43 (4):67-73. https://doi.org/10.15625/2615-9023/16352.