Taxonomic noteson thegenusPseumenes Giordani Soika, 1935 (Hymenoptera: Vespidae Eumeninae) from Vietnam with key to all known species in the Oriental region Author Lien, Nguyen Thi Phuong Institute of Ecology and Biological Resources (IEBR), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, CauGiay, Hanoi, Vietnam & Graduate school of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, CauGiay, Hanoi, Vietnam Author Ngat, Tran Thi 0000-0002-7057-4638 Institute of Ecology and Biological Resources (IEBR), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, CauGiay, Hanoi, Vietnam & https: // orcid. org / 0000 - 0002 - 7057 - 4638 Author Minh, Hoang Gia 0000-0002-2067-5473 Institute of Ecology and Biological Resources (IEBR), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, CauGiay, Hanoi, Vietnam & https: // orcid. org / 0000 - 0002 - 2067 - 5473 text Zootaxa 2020 2020-08-05 4822 2 293 299 journal article 8817 10.11646/zootaxa.4822.2.11 0aefbb53-9ec0-4661-a091-59d9d37d9bd0 1175-5326 4401411 CCE96D6E-9EC5-4934-A0E9-ADA5456775A9 Pseumenes depressus depressus (de Saussure, 1855 ) ( Figs 9–12 ) Eumenes depressus de Saussure, 1855 , Ét. Fam. Vesp. 3: 135, female (in division Pareumenes )—“Les Indes Orientales” (Paris). This species has been recorded in several provinces ( Ha Giang , Thanh Hoa ) in the northern part, (Thua Thien Hue, Quang Nam ) in the middle part and Ninh Thuan in the southern part of Vietnam in the previous studies ( Nguyen et al ., 2014 , 2015 , 2018 ), and is newly recorded from Ninh Binh , Ha Tinh , Quang Tri , Gia Lai , and Lam Dong in this study. Material examined . Ha Giang : 1 male , Tung Ba , Vi Xuyen , 24.vi.2013 , Nguyen VT ; Ninh Binh : 1 female , Cuc Phuong NP , 07.v.2002 , Hoang VT ; Ha Tinh : 1 male , Son Tay , Huong Son , 19–24.v.2004 , Nguyen TPL ; 1 female , Vu Quang NP , 09.ix.2019 , Nguyen TPL & Nguyen QC ; Quang Tri : 1 female , Dakrong , Huc Nghi , 350–400 m , 18.vii.2004 , ISD-c; Thua Thien Hue : 1 female , A Roang, A Luoi,> 700 m , 22.vii.2004 , ISD-c; Quang Nam : 1 female , Praotown , Dong Giang , 500–600 m , 28.v.2006 ; Gia Lai : 1 male , Kon Ka Kinh NP , Konpne , Ka Bang , 847 m , 14°23’23”N 108°20’28”E , 16.vii.2012 , Nguyen TPL ; Lam Dong : 1 female , Bao Loc , 11°31′53″N 107°48′27″E , 11.xi.2019 , Nguyen TPL ; Ninh Thuan : 1 male , Phuoc Binh , Bac Ai , 300–400 m , 13.xi.2008 , ISD-c . Distribution. India ; China ; Myanmar ; Thailand ; Malaysia ; Vietnam ; Taiwan .