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 Ethelurgus episyrphicola Kusigemati, 1983 (SJN: Hosohirataabu-togari-himebachi) ( Figs 30A–D ) Ethelurgus episyrphicola Kusigemati, 1983: 110 . Ethelurgus politus Townes, 1983: 135 . Syn. nov. Description . See Kusigemati (1983) and Townes (1983) . Materials examined . JAPAN : KPM-NK 81913 , F, Hokkaido , Otofuke Town , Kibougaoka-koen , 25. VI. 2017 , K. Watanabe leg. ; KPM-NK 81915 , M, Saitama Pref. , Urawa , Tajima , 9. IV. 1999 , T. Nambu leg. ; KPM-NK 81916 , F, Saitama Pref. , Yorii town , Mure , 17. V. 2001 , T. Nambu leg. ( YPT ) ; KPM-NK 81911 , F, Tokyo , Izuoshima Is. , Ohshima Town , Mt. Omaru , Tsubakinomori , 5–31. X. 2012 , K. Tsujii leg. (MsT) ; KPM-NK 81918 , F, Tokyo , Miyakejima Is., Miyake Vil., Tsubota-rindo, 25. VIII. – 22. IX. 2012 , K. Tsujii leg. (MsT) ; KPM-NK 81917 , F, Tokyo , Hachijojima Is., Oogakyo, 16–21. V. 2012 , K. Tsujii leg. (MsT) ; KPM-NK 81919–81921 , 3 M, Tokyo , Akiruno City , Ninomiya , Tamagawa-riverside , 3. V. 2010 , K. Watanabe leg. ; KPM-NK 81914 , M, Kanagawa Pref. , Yokosuka City , Fukadadai , 11. IV. 1997 , I. Kawashima leg. ; KPM-NK 81926 , F, Kanagawa Pref. , Hakone Town , Ochudo , 21. VI. 2010 , M. Takakuwa leg. ; KPM-NK 81925 , M, Yamanashi Pref. , Koushu City , Yanagisawa-toge , 5. VIII. 2008 , K. Watanabe leg. ; TMNH , F, Aichi Pref. , Toyohashi City , Imura Town , Takayama , 2. VI. – 6. VI. 2019 , S. Morishita leg. (MsT) ; KPM-NK 81922 , M, Toyama Pref. , Toyama City, Kamegai , 28. VII. – 4. VIII. 2009 , M. Watanabe et al. leg. (MsT) ; KPM-NK 81923 , F, Fukui Pref. , Arashi , 23. IX. 1973 , T. Tano leg. ; AEIC , F ( holotype of E. politus ), Tokushima Pref. , Nishino , 18. VI. 1932 , K. Sato leg. ; KPM-NK 81912 , F, Saga Pref. , Tara Town , Mt. Taradake , 20. V. 2011 , T. Yamauchi leg. ; SEHU , F ( holotype of Et. episyrphicola ), Kagoshima Pref. , Kagoshima City , 18. XII. 1962 , em. from Episyrphus balteatus , K. Kusigemati leg. ; KPM-NK 81924 , F, Kagoshima Pref. , Tokunoshima Is., Tete, Mt. Amagi-dake , 27. III. 2011 , K. Watanabe leg. Distribution . Japan ( Hokkaido *, Honshu, Izuoshima Is.*, Miyakejima Is.*, Hachijojima Is.*, Shikoku, Kyushu, and Tokunoshima Is.*), China , and India . Bionomics . Host record: Episyrphus balteatus (De Geer, 1776) ( Diptera , Syrphidae ) ( Kusigemati, 1983 ). Remarks . This is the first record of this species from Hokkaido , Izuoshima Is., Miyakejima Is., Hachijojima Is., and Tokunoshima Is.