Tersilochus (Tersilochus) hokkaidoensis Khalaim, 2012

Khalaim, Andrey I., 2022, Tersilochinae (Hymenoptera: Ichneumonidae) of Japan: two new species, a new combination and 23 new country records, Zootaxa 5174 (4), pp. 301-330 : 318-321

Tersilochus (Tersilochus) hokkaidoensis Khalaim, 2012

( Figs 50–54 )

Material examined. JAPAN. Hokkaido I.: Sapporo, Hitsujigaoka, 43°00’N, 141°24’E, Malaise trap, coll. K. Konishi: 2 ♀ ( EUM) 27.IX–4.X.2007, 1 ♀ ( EUM) 4–11.X.2007, 4 ♀ ( EUM) 11–18.X.2007, 7 ♀ ( EUM) 25.X– 1.XI.2007, 4 ♀ (2 ♀ in EUM, 2 ♀ in ZISP) 1–8.XI.2007, 1 ♀ ( EUM) 8–22.XI.2007, 4 ♀ ( EUM) 1–8.IX.2008, 3 ♀ ( EUM) 25.IX–2.X.2009, 2 ♀ ( EUM) 23.X–6.XI.2009, 3 ♀ ( EUM) 5–12.X.2010, 1 ♀ ( EUM) 12–19.X.2010, 1 ♀ ( EUM) 19–26.X.2010, 1 ♀ ( EUM) 26.X–2.XI.2010, 1 ♀ ( EUM) 24–31.X.2011, 1 ♀ ( EUM) 7–21.XI.2011, 2 ♀ ( EUM) 22–29.X.2013. 1 ♀ ( EUM) same locality, 16.X.2015, coll. Yu Hisasue. 1 ♀ ( EUM) Sapporo, Hitsujigaoka, 43°00’01”N, 141°24’57”E, around nest of Lasius (D.) nipponensis , 17.X.2015, coll. K. Konishi. 1 ♀ ( EUM) Chitose, Bifue [Campground], Kusabue-rindô, 42.7154°N, 141.2143°E, Malaise trap, 27.X–10.XI.2012, coll. N. Kuhara. 2 ♀ ( EUM) Kyowa, Shinsen-numa, 42°54’N, 140°35’E, 11.IX.2010, coll. K. Konishi. 1 ♀ ( EUM) Naganuma, Malaise trap, 26–30.IX.2003, coll. A. Iwasaki. Honshu I.: 11 ♀, 6 ♂ (10 ♀, 5 ♂ in EUM; 1 ♀, 1 ♂ in ZISP) Tochigi Pref., Nikkô-shi, Yumoto, 22.IX.2015, coll. Juriya Okayasu. Shikoku I.: 2 ♀, 1 ♂ ( EUM) Ehime Pref., Matsuyama-shi, Mt. Ishizuchi, 1400–1600 m, 10–11.IX.2017, coll. Yu Hisasue. 2 ♀ ( EUM) Ehime Pref., Mt. Saragamine, 9.X.1979, coll. Y. Seiyama. 2 ♀ ( EUM) Ehime Pref., Odamiyama, Koyayama, 28.X and 19.XI.2000, coll. E. Yamamoto. 1 ♀ ( EUM) Ehime Pref., Odamiyama, Hontani, 21–31.X.2008, coll. E. Yamamoto. 1 ♀ ( EUM) Tokushima, Sanagouchi, Ôkawara, 33°57’28”N, 134°25’10”E, Malaise trap, 12–17. VI.2016, coll. K. Ôhara. 1 ♀ ( EUM) Kôchi Pref., Agawagun, Ino-cho, Teragawa, 33°47’N, 133°12’E, 5.XI.2016, coll. Keita Kuroda.

Diagnosis. Antennal flagellum filiform, slender, brownish black or black ( Fig. 51 ). Malar space short, about half as long as basal mandibular width ( Fig. 52 ). Head and mesosoma evenly granulate, dull, impunctate ( Fig. 52 ). Mesopleuron with very short and thin foveate groove ( Fig. 52 ). Propodeum usually with narrow basal area which is often indistinct because of longitudinal wrinkles ( Fig. 53 ). Metacarpus almost reaching tip of the fore wing ( Fig. 50 ). First metasomal tergite very slender, laterally smooth ( Fig. 52 ). Second tergite about as long as anteriorly broad. Metasoma dark brown ( Fig. 50 ). Ovipositor short, robust, with weak dorsal subapical depression and more or less distinct rounded teeth before and behind this depression, with fine teeth ventrally ( Fig. 54 ).

Distribution. Russian Far East; in Japan known from Hokkaido, Honshu and Shikoku islands.

Biology. One female from Sapporo was collected around nest of Lasius (Dendrolasius) nipponensis Forel ( Hymenoptera : Formicidae ).

Figures

FIGURES 50–54. Tersilochus hokkaidoensis, ♀ (Japan): 50—habitus, lateral; 51—antennae and mesoscutum, antero-lateral; 52—head, mesosoma and base of metasoma, lateral; 53—propodeum, dorso-lateral; 54—ovipositor, lateral.