Ctenopelma boreale Holmgren, 1857

Watanabe, Kyohei, 2024, Taxonomic Study of Japanese Ctenopelmatinae (Hymenoptera, Ichneumonidae), with Descriptions of 22 New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 53, pp. 39-102 : 41-42

Ctenopelma boreale Holmgren, 1857

(SJN: Karafuto-tsuya-maru-himebachi)

( Figs. 1A–C , 41C, J, O )

Ctenopelma boreale Holmgren, 1857: 120 .

Ischnus karafutonis Matsumura, 1911: 93 . syn. nov.

Description. See Kasparyan (2004).

Materials examined. JAPAN: KPM-NK 84794 , 84795 , 2 F, Hokkaido, Horokanai Town, Moshiri, Uryu , 17. VII. 2012, K. Watanabe leg. ; KPM-NK 84796 , F, Hokkaido, Kuriyama Town , 8–22. VI. 2007, A. Ueda leg. (MsT) ; KPM-NK 84797 , 84798 , 2 M, Gunma Pref., Katashina Vil., Sugenuma , 2. VII. 2008, K. Watanabe leg. ; KPM-NK 84799 , M, Kanagawa Pref., Fujino Town, Sanogawa , 21. V. 2006, H. Nagase leg. ; KPM-NK 5003043 , M, Kanagawa Pref., Kiyokawa Vil., Mt. Tanzawa-san , 16. V. 2013, T. Taniwaki leg. (Flight interception trap) ; KPM-NK 5003044 , ditto, 6. VI. 2013 ; KPM-NK 84800 , F, Nagano Pref., Outaki Vil., Mt. Ontake-san, Hakkaisan , 7. VIII. 2010, K. Watanabe leg. ; KPM-NK 84801 , F, Toyama Pref., Toyama City, Arimine, Inonedani , 7–14. VII. 2009, M. Watanabe leg. (MsT) ; KPM-NK 84802 , F, ditto, 4–11. VIII. 2009 ; KPM-NK 84803 , 84804 , 2 F, Fukui Pref., Oono City, Mt. Dosaizan , 20. V. 1982, H. Kurokawa leg. ; KPM-NK 84805 , F, Fukui Pref., Kokuratoge , 7. VI. 1982, T. Murota leg. ; KPM-NK 84806 , F, Fukui Pref., Imajo Town, Hachibuse-yama , 6. VII. 1981, T. Murota leg. ; KPM-NK 84807 , F, Fukui Pref., Natasho Vil., Mushidani , 9. V. 1982, T. Murota leg. ; KPM-NK 84808– 84810 , 3 M, Fukui Pref., Ikeda Town, Mt. Heko-san , 16. VI. 1981, T. Murota leg. ; KPM-NK 84811 , M, ditto, 10. VI. 2016, S. Shimizu leg. ; KPM-NK 84812 , 84812 , 2 M, ditto, 18. VI. 2016, S. Shimizu leg. ; KPM-NK 84814 , M, Fukui Pref., Oono City, Minamirokuroshi, Okuetsu-kogen to Mt. Hoduki , 28. V. 2011, S. Fujie leg. ; OMNH, 2 M, ditto ; KPM-NK 84815 , M, Miyazaki Pref., Gokasecho , 5. V. 1980, H. Nagase leg.

Distribution. Japan (Kunashiri Is., Hokkaido, Honshu, and Kyushu); widely distributed in Palearctic region.

Remarks. This is the first record of this species from Honshu and Kyushu. According to Kasparyan (2004), this species and Ct. karafutonis can be distinguished by the colouration of the vertex (females) and of the face, clypeus, mandible, fore and mid coxae, trochantelli of all legs, and laterotergite of T IV (males), while these character states overlap. In addition, the colouration of the female vertex is exactly the same in both species. Thus, I newly synonymise Ct. karafutonis into Ct. boreale .

K. Watanabe

42

Figures

Fig. 1. Ctenopelma boreale Holmgren, 1857 (A, B: KPM-NK 84794, female; C: KPM-NK 84798, male) ― A: lateral habitus; B, C: head, frontal view.

Fig. 41. Mandible (A, B), propodeum, dorsal view (C–F), left hind tarsus (G–I), left hind tarsal claw (J), apical part of metasoma, dorsal (K, L) and lateral (M, N) view, and apex of ovipositor, lateral view (O, P), females ―A: Euryproctus japonicus (Ashmead, 1906) (KPM- NK 84826); B, D: Perilissus autumnalis sp. nov. (KPM-NK 91241, holotype); C, J, O: Ctenopelma boreale Holmgren, 1857 (C, O: KPM-NK 84794; J: KPM-NK 84795); E, K, M: Notopygus bicornis sp. nov. (KPM-NK 81355, holotype); F, L, N: N. japonicus sp. nov. (KPM-NK 84831, holotype); G: Hyperbatus ariminensis sp. nov. (KPM-NK 84935, holotype); H: H. nigrifemur sp. nov. (KPM- NK 84958, holotype); I: Lethades kanagawensis sp. nov. (KPM-NK 81378, holotype); P:Ctenopelma pineatus Sheng, Sun & Li, 2019 (KPM-NK 84787).