Contribution to the genus Pararrhynchium de Saussure (Hymenoptera: Vespidae Eumeninae), with description of two new species from Vietnam Author Nguyen, Lien Thi Phuong 0000-0003-3527-9577 Insect Ecology Department, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam. https: // orcid. org / 0000 - 0003 - 3527 - 9577 & Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam. https: // orcid. org / 0000 - 0002 - 7057 - 4638 Author Tran, Ngat Thi 0000-0003-3527-9577 Insect Ecology Department, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam. https: // orcid. org / 0000 - 0003 - 3527 - 9577 Author Bui, Dien Trong Bee Research Centre, National Institute of Animal Sciences, 9 Tan Phong, Thuy Phuong, Bac Tư Liem, Hanoi, Vietnam. Author Ljubomirov, Toshko 0000-0002-3202-3309 Institute of Biodiversity and Ecosystem Research - Bulgarian Academy of Sciences, 1, Tzar Osvoboditel Boulevard. Sofia, 1000. Bulgaria. https: // orcid. org / 0000 - 0002 - 3202 - 3309 text Zootaxa 2021 2021-12-16 5082 2 159 168 journal article 2926 10.11646/zootaxa.5082.2.5 cc0592d1-cf60-451e-9a38-798c281a103b 1175-5326 5785366 53BD391E-A8F5-4B3D-8151-1DD814FDCEFA Genus Pararrhynchium de Saussure, 1855 Pararrhynchium de Saussure, 1855: 173 , division of genus Rhynchium Spinola. Type species: Rynchium ornatum Smith, 1852 , by monotypy. Prorhynchium de Saussure, 1855: 174 , division of genus Rhynchium Spinola. Type species Rhynchium smithii de Saussure, 1855 , by monotypy. Synonymized by van der Vecht 1963: 94 .