Homotropus megaspis Thomson, 1890

Morishita, Shunsuke & Watanabe, Kyohei, 2025, Review of the genera Homotropus Förster and Syrphoctonus Förster (Hymenoptera, Ichneumonidae, Diplazontinae) from Japan, Zootaxa 5588 (1), pp. 49-76 : 64-67

Homotropus megaspis Thomson, 1890

( Figs 10 A–E )

Homotropus megaspis Thomson, 1890: 1516 .

Homotropus megalaspis Schulz, 1906: 115 .

Homotropus momoii Uchida, 1957: 262 . Syn. nov.

Syrphoctonus tenuitibialis Uchida, 1957: 261 . Syn. nov.

Homotropus megaspis : Dasch, 1964: 100.

Homotropus momoii : Townes et al., 1965: 404.

Homotropus tenuitibialis : Townes et al., 1965: 405.

Homotropus megaspis : Klopfstein, 2014b: 68 .

Specimens examined. JAPAN: [Hokkaido] 1F, Hidaka Town, Uenzaru-gawa , 10 VII–1 VIII 2007, A. Ueda leg. (MsT) ( KPMNH) ; 1F, Kamishihoro Town, Nukabira , 22. VI. 1980, H. Takemoto leg. ( NARO) ; 1M (holotype of S. tenuitibialis ), Sapporo, 30. V. 1956, K. Kamijo leg. ( SEHU) ; 1F, Soranuma , 17. VIII. 1967, K. Kusigemati leg. ( SEHU) ; [Honshu] 2M, Yamagata Pref., Mamurogawa Town, 22. VI. 2012, Y. Matsubara & K. Fukuda leg. ( KPMNH) ; 1F, Yamagata Pref., Mt. Asahidake , 27. VII. 1969, H. Takizawa leg. ( SEHU); 1F, Tochigi Pref., Nasushiobara City, Kotaki , 24–30 VII 2008, T. Matsumura leg. (MsT) ( KPMNH); 1M, Gunma Pref., Katashina Vil., Mt. Hotakasan , 2. VIII. 2007, K. Watanabe leg. ( KPNMH) ; 2M, Niigata Pref., Nagaoka City, Suyoshi, Mt. Nokogiriyama , 7. VI. 2014, S. Shimizu leg. ( KPNMH) ; 2F, Niigata Pref., Sado Is., Kanaishinbo, Hakuundai, Mt. Myokenzan , 4. VIII. 2009, K. Watanabe leg. ( KPNMH) ; 1F, Yamanashi Pref., Koshu City, Yanagisawa-toge , 5. VIII. 2008, K. Watanabe leg. ( KPNMH) ; 1F, Yamanashi Pref., Hokuto City, Masutomi, Biwakubosawa , 24. VI. 2007, K. Watanabe leg. ( KPNMH) ; 1F, ditto, 24. VI. 2007, T. Ban leg. ( KPNMH); 1M, Yamanashi Pref., Koshu City, Sagashio , 17. V. 2008, T. Muraki leg. ( KPNMH); 1M, Kanagawa Pref., Mt. Omuroyama , 7. VI. 2013, (FIT) ( KPMNH) ; 1M, Kanagawa Pref., Hadano City, Tanzawaterayama, Yabitsu-toge, Mt. Oyama , I. Waki leg. ( KPNMH) ; 1M, Kanagawa Pref., Hadano City, Mt. Koubouyama , 5. IV. 2007, K. Watanabe leg. ( KPNMH); 1F1M, ditto, 6. IV. 2008, K. Watanabe leg. ( KPMNH); 1F1M, ditto, 12. IV. 2008, K. Watanabe leg. ( KPMNH); 1M, Kanagawa Pref., Odawara City, Kayama, Sakawagawa , 25. III. 2017, K. Watanabe leg. ( KPNMH) ; 1M, Kanagawa Pref., Hinatayakushi , 29. VI. 1974, H. Takizawa leg. ( SEHU) ; 4M, Shizuoka Pref., Honkawane Town, Mt. Yamainudan , 14. VI. 2008, K. Watanabe leg. ( KPNMH) ; 1F, Nagano Pref., Kawakami Vil., Azusayama , 14. VI. 2015, K. Watanabe leg. ( KPNMH) ; 1M, Nagano Pref., Otaki Vil., Mt. Ontakesan, Hakkaisan , 5. VIII. 2010, K. Watanabe leg. ( KPNMH) ; 2M, ditto, 6. VIII. 2010, K. Watanabe leg. ( KPNMH); 1M, ditto, 7. VIII. 2010, K. Watanabe leg. (KPNMH) ; 1F, ditto, 8. VIII. 2010, K. Watanabe leg. ( KPNMH) ; 1F, Nagano Pref., Otaki Vil., Mt. Ontakesan, Tanohara , 17. VII. 2007, K. Watanabe leg. ( KPNMH); 2M, ditto, 9. VIII. 2007, K. Watanabe leg. ( KPNMH) ; 1F, Toyama Pref., Toyama City, Arimine , jurodani, 7–14 VII 2009, M. Watanabe leg. (MsT) ( KPMNH); 1F, Toyama Pref., Toyama City, Arimine, Inonedani , 25 VIII–1 IX 2009, M. Watanabe leg. (MsT) ( KPMNH) ; 1F, Toyama Pref., Toyama City, Kamegai , 15–26 IX 2009, M. Watanabe leg. (MsT) ( KPMNH); 1F, Aichi Pref., Shitara Town, Tsuguhonsawa , 26 V–23 VI 2020, S. Morishita leg. ( TMNH) ; 1F, Aichi Pref., Toyohashi City, Imure-cho, Takayama , 21. V. 2019, S. Morishita leg. ( TMNH) ; 1F, Aichi Pref., Toyohashi City, Suse-cho, Kanbata , 23. X. 2018, S. Morishita leg. ( TMNH); 1M, Fukui Pref., Ikeda Town, Mizuumi, Mt. Hekosan , 18. VI. 2016, S. Shimizu leg. ( KPNMH) ; 1F, Hyogo Pref., Sayo Town, Funakoshi , 28 III–4 IV 2010, ( KPNMH); [Izu Isis.] 1F (holotype of H. momoii ), Tokyo, Izuoshima Is. , 25. V. 1955, S. Momoi leg. ( SEHU) ; [Shikoku] 1M, Kochi Pref., Umaji Vil., 24. VI. 2010, Y. Matsubara & K. Fukuda leg. (MsT) ( KPNMH) ; [Kyushu] 1F, Kagoshima Pref., Mt. Kirishima , 27. V. 1966, K. Kusigemati leg. ( SEHU) ; 1F, Kagoshima Pref., Mt. Kurinodake , 10. V. 1967, K. Kusigemati leg. ( SEHU) . GERMANY: 1M (det. S. Klopfstein), Oberhartz, Clausthal , 26. XI. 1928, G. Meyer leg. ( ZSM) .

Diagnosis. See Klopfstein (2014b).

Distribution. Japan (Hokkaido, Honshu, Izuoshima Is., Shikoku, and Kyushu). Outside Japan, this species is widely distributed in Palearctic region ( Yu et al. 2016).

Bionomics. Host is unknown. In Japan, adults were collected in broad-leaved forest.

Remarks. This is the first record of this species from Japan.

Figures

FIGURE 10. Homotropus megaspis Thomson, 1890, female (A–C) and male (D, E)―A, D: lateral habitus; B, E: head, frontal view; C: scutellum, dorsal view.