Description of a new species of Foenatopus Smith (Hymenoptera, Stephanidae), with a key to the species from Vietnam Author Ge, Si-Xun College of Forestry, Beijing Forestry University, Beijing 100083, China Author Ren, Li-Li College of Forestry, Beijing Forestry University, Beijing 100083, China Author Tan, Jiang-Li Shaanxi Key Laboratory for Animal Conservation / Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Northwest University, 229 North Taibai Road, Xi' an, Shaanxi 710069, China text Journal of Hymenoptera Research 2021 2021-12-30 88 71 83 http://dx.doi.org/10.3897/jhr.88.76421 journal article http://dx.doi.org/10.3897/jhr.88.76421 1314-2607-88-71 FB4A46CCE23D4752AF53652B2FCD5943 0DE82FADCAF6537A96B6DC2F4BCEE675 5826677 Genus Foenatopus Smith, 1861 Foenatopus Smith, 1861: 58. Type species (by monotypy): Stephanus indicus Westwood, 1841. Diastephanus Enderlein, 1905: 473. Type species: Stephanus flavomaculatus Enderlein, 1901. Synonymized by Benoit, 1956. Neostephanus Kieffer, 1904: 1-4. Type species (by monotypy): Neostephanus alluaudi Kieffer, 1904. Synonymized by Narendran et al. (2001) . Diagnosis. Small to medium size. Temple always with pale yellowish streak behind eye. Neck emarginate anteriorly, finely striate, pronotal fold absent; reduced venation with vein 2-CU1 of fore wing always less developed, but sometimes complete; veins 2-SR and 2-SR+M of fore wing absent; vein 1-SR absent or faintly developed; hind tibia distinctly narrowed and compressed basally, outer side usually without fine oblique striae; hind tarsus with three tarsomeres in the female, while five in the male. Distribution. Afrotropical, Neotropical, Palaearctic and Oriental.