Bathythrix linearis ( Gravenhorst, 1829 )

Watanabe, Kyohei, 2021, Taxonomic and Zoogeographic Study of the Japanese Phygadeuontinae (Hymenoptera, Ichneumonidae), with Descriptions of 17 New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 50, pp. 55-136 : 71-72

Bathythrix linearis ( Gravenhorst, 1829)

(New SJN: Miyama-mame-togari-himebachi)

( Figs 12A–D )

Nematopodius linearis Gravenhorst, 1829: 958 .

Leptocryptus heteropus Thomson, 1886: 1040 .

Description. See Sawoniewicz (1980).

Materials examined. JAPAN: KPM-NK 81696, F, Hokkaido, Horokanai Town, Moshiri, Uryu , Butokamabetsu-rindo , 17. VII. 2012, K. Watanabe leg.; KPM-NK 81697 , 81702 , 81710 , F & 2 M, Hokkaido, Horokanai Town, Moshiri, Uryu , 11–17. VII. 2012, K. Watanabe leg.; KPM-NK 81678 , F, Tochigi Pref., Nasushiobara City, Shiobara, Oonuma , 6. VI. 2008, 15. VI. 2008, T. Matsumura leg. (MsT); KPM-NK 81703 , M, Tochigi Pref., Mogi Town, Ayuta , 19. X. 2011, M. Imaizumi leg.; KPM-NK 81709 , M, Ibaraki Pref., Tsukuba City, Oda, Mt. Hokyosan , 18. V. 2014, S. Shimizu leg.; KPM-NK 81711 , M, Tokyo, Takao Town, Hikagesawato Koke-sawa , 3. V. 2007, K. Watanabe leg.; KPM-NK 81690–81693 , 3 F & 1 M, Tokyo, Ome City, Mt. Mitake-san , 1. VI. 2008, M. Gunji leg.; KPM-NK 81698 , F, Kanagawa Pref., Fujino Town, Mt. Jinba-yama , 7. VI. 2008, K. Watanabe leg.; KPM-NK 81701 , F, Kanagawa Pref., Hakone Town, Sengokubara , 15. VI. 1956, R . Ishikawa leg.; KPM-NK 81707 , M, Kanagawa Pref., Atsugi City, Nakaogino , 26. IV. 2008, M. Gunji leg.; KPM-NK 81695 , 81699 , F & M, Yamanashi Pref., Koushu City, Katsunuma Town, Ootaki-fudou , 22. V. 2010, K. Watanabe leg.; KPM-NK 81700 , F, Nagano Pref., Outaki Vil., Mt. Ontakesan, Hakkaisan , 13. VI. 2015, K. Watanabe leg.; KPM-NK 81706 , M, Nagano Pref., Kawakami Vil., Mt. Azusayama , 14. VI. 2015, K. Watanabe leg.; KPM-NK 81694 , M, Niigata Pref., Nagaoka City, Suyoshi Town, Mt. Nokogiri-yama , 6. V. 2014, 25. V. 2014, S. Shimizu & R. Shimizu leg. (MsT); KPM-NK 81705 , F, Shizuoka Pref., Shizuoka City, Umegashima, Abe-toge , 15. VI. 2008, K. Watanabe leg.; KPM-NK 81712 , F, Mt. Tateyama , 17. X. 1974, K. K. & M. W. leg.; KPM-NK 81679 , 81681 , 2 F, Toyama Pref., Nanto City, Togamura-kamimomose , 18. VIII. 2009, 25. VIII. 2009, M. Watanabe et al. leg. (MsT); KPM-NK 81680 , 81682 , 81714 , 3 F, ditto, 25. VIII. – 1. IX. 2009; KPM-NK 81683 , 81688 , F & M, ditto, 1–8. IX. 2009; KPM-NK 81687 , F, ditto, 8–15. IX. 2009; KPM-NK 81684–81686 , 81715 , 4 F, ditto, 15–29. IX. 2009; KPM-NK 81713 , F, Toyama Pref., Toyama City, Arimine, Inonedani , 1. IX. 2009, 8. IX. 2009, M. Watanabe et al. leg. (MsT); KPM-NK 81689 , F, Toyama Pref., Toyama City, Arimine, Jyuroudani , 21. VII. 2009, 28. VII. 2009, M. Watanabe et al. leg. (MsT); KPM-NK 81704 , M, Hyogo Pref., Kami Town, Niiya , 16. VII. 2011, M. Ito leg.; KPM-NK 81708 , F, Hyogo Pref., Sayo Town, Funakoshi , 14. V. 2011, S. Fujie leg.

Distribution. Japan (Kunashiri Is., Hokkaido *, and Honshu*); widely distributed in Palearctic region ( Yu et al., 2016).

Bionomics. Unknown.

Remarks. This is the first record of this species from Hokkaido and Honshu.

Figures

Fig. 12. Bathythrix linearis (Gravenhorst, 1829), KPM-NK 81695, female from Japan ― A, lateral habitus; B, head, frontal view; C, head, mesosoma, and metasoma, dors0-lateral view; D, wings.