A review of the genus Enicospilus Stephens (Ichneumonidae: Ophioninae) from Vietnam, with descriptions of ten new species Author Pham, Nhi Thi 67079E55-D341-48F2-AEDB-71AA8D40AD2D Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam. Osaka Museum of Natural History, Nagai Park 1 - 23, Higashisumiyoshi-ku, Osaka, Japan. Institute for Agro-Environmental Sciences, NARO, Kannondai 3 - 1 - 3, Tsukuba 305 - 8604, Japan. Laboratory of Insect Biodiversity and Ecosystem Science, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan. The Natural History Museum, Cromwell Road, London SW 7 BD, UK. ptnhi2@yahoo.com Author Pham, Phu Van 09B6F968-3B83-4052-89A1-1DB2D91933CF Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam. Osaka Museum of Natural History, Nagai Park 1 - 23, Higashisumiyoshi-ku, Osaka, Japan. Institute for Agro-Environmental Sciences, NARO, Kannondai 3 - 1 - 3, Tsukuba 305 - 8604, Japan. Laboratory of Insect Biodiversity and Ecosystem Science, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan. The Natural History Museum, Cromwell Road, London SW 7 BD, UK. phamphu93.k56@gmail.com Author Matsumoto, Rikio 9D30E868-4C4B-4F40-A6C8-781F185FA0E4 rikio@mus-nh.city.osaka.jp Author Shimizu, So D60BFE76-B686-4FB2-A720-A02DE0A2C2B1 parasitoidwasp.sou@gmail.com Author Broad, Gavin R. D06689DE-526F-4CFA-8BEB-9FB38850754A g.broad@nhm.ac.uk text European Journal of Taxonomy 2023 2023-06-12 873 1 1 151 http://dx.doi.org/10.5852/ejt.2023.873.2133 journal article 54010 10.5852/ejt.2023.873.2133 6b60ec14-d9a3-4400-b636-bb3ee16094b7 2118-9773 8038022 099F6A49-6516-4F39-9E20-A077A5D60535 Enicospilus argus Gauld & Mitchell, 1981 Fig. 7 Enicospilus argus Gauld & Mitchell, 1981: 425 ; holotype ♀ from Papua New Guinea ( NHMUK ). Diagnosis Interocellar area reddish brown; clypeus weakly convex, ventral margin subacute to acute; mandible twisted ca 20°, outer surface without a diagonal setose groove; fore wing fenestra with proximal, central and distal sclerites present, central sclerite with the proximal weakly sclerotized region large, distally strongly sclerotized, more or less bar-shaped and subparallel to vein 2r&RS. Fig. 7. Enicospilus argus Gauld & Mitchell, 1981 , ♀ (IEBR). a . Habitus. b . Head, frontal view. c . Head, dorsal view. d . Head, lateral view. e . Mesosoma, lateral view. f . Central part of fore wing. Scale bars = 1.0 mm. Material examined VIETNAM • 2 ♀♀ ; Soc Trang Province , My Tu , My Phuoc ; 9°34′15.6″ N , 105°45′1.6″ E ; 8 Apr. 2018 ; Dang T.H. leg.; light trap ; IEBR • 1 ♀ ; Cao Bang Province , Phia Oac - Phia Den NP ; 8 May 2021 ; Nguyen D.H. leg.; light trap ; IEBR . Remarks Vietnamese specimens have the mandible torsion ca 20°, less twisted in comparison with the specimens from Papua New Guinea and the Philippines (40°–45°) ( Gauld & Mitchell 1981 ). Distribution Previously known from Indonesia , Papua New Guinea , and Philippines ( Gauld & Mitchell 1981 ). These are the first records of this species from Vietnam .