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 Bathythrix prothorax Momoi, 1970 (SJN: Kimune-mame-togari-himebachi) ( Figs 14A–D ) Bathythrix prothorax Momoi, 1970: 342 . Description . See Momoi (1970) . Material examined . KPM-NK 81877 , M, Okinawa Pref. , Ishigakijima Is. , Mt. Omoto-dake , 8. V. 2004 , T. Mita leg. ; MNHAH , M ( holotype ), Iriomotejima Is. , Ushikumori , 11. III. 1964 , C. M. Yoshimoto & J. Harrell leg. Distribution . Japan (Ishigakijima Is.* and Iriomotejima Is.). Bionomics . Unknown. Remarks . This is the first record of this species from Ishigakijima Island.