Eusterinx (Divinatrix) kurilensis Humala, 2004

Watanabe, Kyohei, 2023, Taxonomic and Zoogeographic Notes on Japanese Orthocentrinae (Hymenoptera, Ichneumonidae), with Descriptions of Four New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 52, pp. 7-44 : 17-18

Eusterinx (Divinatrix) kurilensis Humala, 2004

[New SJN: Kunashiri-hae-himebachi]

( Figs. 6A–C, 22K)

Eusterinx (Divinatrix) kurilensis Humala, 2004: 67 .

Diagnosis. Antenna of male with tyloids from FL VI to FL VIII (sometimes weak in FL VIII). Inner eye orbit strongly convergent ventrally ( Fig. 6B). Occipital carina complete. T II and T III each divided into two parts by a transverse groove ( Fig. 6C). Propodeum without a pair of spine-like apophyses ( Figs. 6A, C). Fore wing with an areolet. T I 2.75–2.9 times as long as maximum width, without conspicuous median dorsal carina except for base. Posterior parts of T II and T III covered with longitudinal striae, which similar to the anterior part (or slightly weaker than anterior part in T III) ( Figs. 6C, 22K). T IV with a conspicuous transverse groove, its posterior part usually covered with longitudinal striae ( Figs. 6C, 22K). Hind coxa more or less darkened ( Figs. 6A, C).

Material examined. JAPAN: ZISP. F (holotype), Kunashiri Is., 7 km N. of Mendeleevo , 2. VIII. 1981, S. Belokobylskij leg. ; NARO, 2 F & 3 M, Hokkaido, Sapporo City, Jozankei , 20–31. VII. 1989, K. Maeto & M. Sharkey leg. (MsT) ; NARO, F, ditto, 21–29. VIII. 1989 ; NARO, F, ditto, 29. VIII. – 12. IX. 1989 ; NARO, M, Hokkaido, Kumaishi, Kenichi-gawa, Iwafuchi-zawa , 20. VII. – 1. VIII. 1995, Y. Ito & T. Ito leg. (MsT) ; EUM, M, Hokkaido, Yuni , Kuobetsu-gawa R., 2–12. VII. 2007, N. Kuhara leg. (MsT) ; NARO, F, Hokkaido, Sapporo City, Misumai, Kannon-zawa , 24. VIII. – 7. IX. 1993, N. Kuhara leg. (MsT) ; KPM-NK 81186 , F, Hokkaido, Bifue, Kusabue-rindo , 17. VIII. – 1. IX. 2012, N. Kuhara leg. (MsT) ; NARO, 3 M, Nagano Pref., Shiga-kogen , 26–27. VII. 1961, J. Minamikawa leg.

Distribution. Japan (Kunashiri Is., Hokkaido and Honshu), Far East Russia and Korea ( Yu et al., 2016; Humala et al., 2017).

Remarks. This is the first record of this species from Hokkaido. Longitudinal striation of posterior parts of T III and T IV is sometimes reduced in Japanese specimens.