New findings on the taxonomy of the genus Coeleumenes van der Vecht (Hymenoptera: Vespidae: Eumeninae) from Vietnam, with description of a new species Author Mai, Thai Van 0000-0002-3609-4286 Graduate School of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam. & Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam. & https: // orcid. org / 0000 - 0002 - 3609 - 4286 Author Nguyen, Lien Thi Phuong Graduate School of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam. & Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam text Zootaxa 2021 2021-05-10 4969 1 191 196 journal article 6433 10.11646/zootaxa.4969.1.12 d5160a0e-64cf-4431-bedb-89e429fb6437 1175-5326 4745846 A7F42721-D9FE-4CAA-A746-F89453069B84 Coeleumenes van der Vecht, 1963 Coeleumenes van der Vecht 1963: 45 ; Carpenter 1986: 67 . Type species . Montezumia impavida Bingham, 1897 , by original designation.