Revision of the genus Xanthopimpla Saussure, 1892 (Hymenoptera, Ichneumonidae, Pimplinae) from Japan Author Watanabe, Kyohei https://orcid.org/0000-0002-8242-8611 Kanagawa Prefectural Museum of Natural History, Iriuda 499, Odawara, Kanagawa 250 - 0031, Japan himebati-love@hotmail.co.jp Author Matsumoto, Rikio https://orcid.org/0000-0003-3979-9713 Osaka Museum of Natural History, Nagai Park 1 - 23, Higashisumiyoshi-ku, Osaka 546 - 0034, Japan text Deutsche Entomologische Zeitschrift 2021 2021-09-01 68 2 269 297 http://dx.doi.org/10.3897/dez.68.69768 journal article http://dx.doi.org/10.3897/dez.68.69768 1860-1324-2-269 7E2958A35E8742188689F9D2C98A0E24 815C6497680E536B9EB1C07692EA8476 Xanthopimpla minuta Cameron, 1905 Figs 1E , 3I , 4E , 5E Xanthopimpla minuta Cameron, 1905a: 137. Xanthopimpla ischnoceros Krieger, 1915: 23. Synonymised by Townes and Chiu (1970) . Xanthopimpla ischnoceros var. assamensis Krieger, 1915: 135. Xanthopimpla ischnoceros assamensis : Townes et al. 1961 : 57. Xanthopimpla ischnoceros ischnoceros : Townes et al. 1961 : 58. Xanthopimpla sp. D: Watanabe 2011 : 17. Comparative diagnosis. This species belongs to the trunca species group sensu Townes and Chiu (1970) . This species can be distinguished from other species of this group by the following combination of character states: notaulus extending to the level of posterior edge of tegula (Fig. 3I ); scutellum convex; hind wing with vein 1A indistinct; mesoscutum marked with black (Fig. 1E ); propodeum with lateromedian longitudinal carina present behind anterior transverse carina (Fig. 4E ); propodeum, T II and VI entirely yellow (Figs 1E , 4E ); Ovipositor sheath 0.3 x length of hind tibia. Materials examined. Japan : [Ryukyu Isls.] 1 F, Kagoshima Pref. , Yakushima Is. , Shiratani , 10 Jul-8 Aug 2000 , T. Murata leg. (MT) (MU); 1 M, ditto, 9 Aug-2 Sep 2000 (MU); 1 F , Kagoshima Pref. , Amamioshima Is. , Kinsakubaru , 2 May 1996 , R. Matsumoto leg. (OMNH); 1 F , Kagoshima Pref. , Amamioshima Is. , Mt. Yui , 28 Sep-28 Oct 2001 , T. Murai & Y. Maeda leg. (MT) (MU); 1 F , Kagoshima Pref. , Amamioshima Is. , Sumiyou , Gusuku , 1 Jul 2013 , S. Yoshizawa leg. (KPMNH); 1 F , Okinawa Pref. , Okinawa Is. , Kunigami Vil. , Mt. Yonaha , 19 Nov 1977 , I. Hiura leg. (OMNH); 2 M , Okinawa Pref. , Okinawa Is. , Nakijin Vil. , Oppa-dake , 3 Jul 2006 , R. Matsumoto leg. (OMNH); 2 F , Okinawa Pref. , Okinawa Is. , Kunigami Vil. , Yona , 29 Jun 2013 , M. Ito & S. Fujie leg. (KPMNH) . Distribution. Japan (Yakushima Is., Amamioshima Is. and Okinawa Is.). Outside Japan, this species has been recorded from China, India, Malaysia, Nepal, Philippines, Sri Lanka, Taiwan, Thailand and Vietnam ( Yu et al. 2016 ). Bionomics. In Japan, adults were collected from June to November. Host is unknown. Remarks. This is the first record of this species from Japan. Although this species is divided into five subspecies, X. minuta minuta Cameron, 1905, X. minuta aurangabadensis Patil & Nikam, 1995, X. minuta lita Townes & Chiu, 1970, X. minuta lotipes Townes & Chiu, 1970 and X. minuta quadrula Chao, 1997, Pham et al. (2011) commented that "all of these subspecies could readily be synonymised ..." . The characteristics of the Japanese specimens match well with the description of X. minuta minuta sensu Townes and Chiu (1970) , but we refrained from considering subspecies here.