title: Two new species of the genus Eumenes Latreille, 1802 (Hymenoptera: Vespidae, Eumeninae) from Vietnam.
abstract: Seven species of the genus Eumenes Latreille, 1802, were recorded from Vietnam (Nguyen 2015), including two long-petiolate species (metasomal tergum 1 equal or more than 4 × as long as its maximum width): E. quadratus quadratus Smith and E. multipictus de Saussure, and five species with shorter petioles (metasomal tergum 1 less than 2.5 × as long as its maximum width): E. inconspicuus Smith, E. atrophicus (Fabricius), E. labiatus sinicus Giordani Soika, E. gibbosus Nguyen and E. rubronotatus Pérez. Two other long-petiolate species were were described from the Papuan region (Nugroho et al. 2010): E. batantanensis Nugroho and E. truncatus Nugroho. Two new species of the genus Eumenes with long-petiolate metasomal segment 1 are described from Vietnam. A key to all species occurring in Vietnam is also provided.
authors.affiliation: Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam.; Email: phuonglientit@gmail.com.
authors.forename: Lien Thi Phuong
authors.initials: LT
authors.lastname: Nguyen
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D005260:Female; D008297:Male; D009929:Organ Size; D014744:Vietnam; D014863:Wasps / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development