Taxonomic and Zoogeographic Study of the Japanese Phygadeuontinae (Hymenoptera, Ichneumonidae), with Descriptions of 17 New Species Author Watanabe, Kyohei Kanagawa Prefectural Museum of Natural History, 499 Iryuda, Odawara, Kanagawa 250 – 0031, Japan watanabe-k@nh‛kanagawa-museum‛jp text Bulletin of the Kanagawa Prefectural Museum (Natural Science) 2021 2021-03-30 50 55 136 https://doi.org/10.32225/bkpmnh.2021.50_55 journal article 300009 10.32225/bkpmnh.2021.50_55 70224806-ca38-47ca-bd8a-63da3ac532f9 2189-6720 12774639 DD695C62-DC2F-4D32-8D33-52648E28661D Mastrus takadai Momoi, 1970 (SJN: Takada-chibi-togari-himebachi) ( Figs 49A–C , 65S ) Mastrus takadai Momoi, 1970: 352 . Fig. 48. Mastrus molestae (Uchida, 1933) , KPM-NK 81987, female from Japan ― A, lateral habitus; B, head, frontal view; C, head, mesosoma, and metasoma, dorsal view; D, fore wing. Fig. 49. Mastrus takadai Momoi, 1970 , KPM-NK 81982 (A, B) and 81983 (C), females from Japan ― A, lateral habitus; B, head, frontal view; C, head, mesosoma, and metasoma, dorsal view. Description . See Momoi (1970) . Materials examined . JAPAN : KPM-NK 81981 , F, Hokkaido , Hidaka Town , Uenzaru-gawa , Natural forest , 10. VII. – 1. VIII. 2007 , A. Ueda leg. ; KPM-NK 81985 , F, Hokkaido , Engaru Town , Maruseppu , 13. VII. 2012 , K. Watanabe leg. ; KPM-NK 81978 , F, Kanagawa Pref. , Hadano City , Mt. Koubou-yama , 1. V. 2016 , K. Watanabe leg. ; KPM-NK 81986 , F, Shizuoka Pref. , Honkawane Town , Mt. Yamainudan , 14. VI. 2008 , K. Watanabe leg. ; KPM-NK 81979 , F, Kagoshima Pref. , Yakushima Is. , Hanyama , 1–25. XII. 2006 , T. Yamauchi leg. (MsT) ; KPM-NK 81980 , 81983 , 2 F, Kagoshima Pref. , Yakushima Is. , Arakawa , 2. V. – 4. VI. 2007 , T. Yamauchi leg. (MsT) ; KPM-NK 81982 , F, Kagoshima Pref. , Yakushima Is. , Kankake , 27. X. – 28. XI. 2006 , T. Yamauchi et al . leg. (MsT); KPM-NK 81984 , F, Kagoshima Pref. , Yakushima Is. , Mt. Aikodake , 2. V. – 5. VI. 2007 , T. Yamauchi et al. leg. (MsT); MNHAH , F ( holotype ), Kagoshima Pref. , Amamioshima Is. , 24. V. 1965 , H. Takada leg. Distribution . Japan (Honshu, Yakushima Is., Amamioshima Is., and Okinawajima Is.). Bionomics . Unknown. Remarks . This is the first record of this species from Honshu and Yakushima Is.