title: Discovery of the genus Formosiepyris Terayama, (Hymenoptera, Bethylidae) in Vietnam, with a description of a new species.
abstract: Formosiepyrisvietnamensis sp. n. (Hymenoptera: Bethylidae) is described based on material collected from Da Lat, southern Vietnam. This is the first record of Formosiepyris Terayama from Vietnam. The new species can be distinguished from other Formosiepyris species by a narrow and rounded clypeus; a mandible with three teeth; a second metasomal tergite having small, sparsely distributed punctures and smooth interspaces, except for anterior 2/5, which is microreticulate; and a head length : width aspect ratio of 10 : 11. A key to the Oriental species of Formosiepyris is provided.
authors.affiliation: Laboratory of Entomology, Faculty of Agriculture, Tokyo University of Agriculture, 1737 Funako, Atsugi, Kanagawa 243-0034 Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Tsujii
authors.affiliation: Entomological Laboratory, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan.
authors.forename: Toshiharu
authors.initials: T
authors.lastname: Mita
authors.affiliation: Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
authors.forename: Mamoru
authors.initials: M
authors.lastname: Terayama
authors.affiliation: Vietnam National Museum of Nature, Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet St, Hanoi, Vietnam.
authors.forename: Hong Thai
authors.initials: HT
authors.lastname: Pham
authors.affiliation: Laboratory of Entomology, Faculty of Agriculture, Tokyo University of Agriculture, 1737 Funako, Atsugi, Kanagawa 243-0034 Japan.
authors.forename: Shûji
authors.initials: S
authors.lastname: Okajima
keywords: Epyrinae; Oriental region; key; new record