Woldstedtius karafutensis (Uchida, 1957)

Morishita, Shunsuke & Watanabe, Kyohei, 2022, Revision of the genus Woldstedtius Carlson, 1979 (Hymenoptera, Ichneumonidae, Diplazontinae) from Japan, Deutsche Entomologische Zeitschrift 69 (1), pp. 45-64 : 45

Woldstedtius karafutensis (Uchida, 1957)

Figs 4A-F , 9H

Homocidus karafutensis Uchida, 1957: 252.

Materials examined.

Type series: RUSSIA: 1 F (holotype), Sakhalin Is., Tarandomari , 25 Jul 1934, C. Watanabe & T. Inoue leg. (SEHU) ; JAPAN: [Hokkaido] 1 F (paratype), Hokkaido, Sapporo , 6 Jul 1954, Townes family leg. (SEHU). Non-types : JAPAN: [Honshu] 1 F, Fukushima Pref., Showa Vil., Mt. Hakase, 24 Aug-19 Sep 1998, T. Muroi leg. (MT) ( MU); 1 F, Yamagata Pref., Mamurogawa Town, Azusayama, 5 Sep 2009, Y. Matsubara & K. Fukuda leg. (MT) ( KPMNH); 2 F, Shizuoka Pref., Shizuoka City, Umegashima, 3 Jun-16 Jul 2001, T. Sugiyama leg. (MT) ( MU); 2 F, ditto, 17 Jul-5 Aug 2001, T. Sugiyama leg. (MT) ( MU); 1 M, Shizuoka Pref., Honkawane Town , Yamainudan, 14 Jun 2008, K. Watanabe leg. ( KPMNH); 2 F, Gifu Pref., Kani City, Katabira, 8-14 May 2004, K. Yamagishi leg. (MT) ( MU); 1 F, Toyama Pref., Nanto City, Togamura, Kamimomose, 4-11 Aug 2009, M. Watanabe leg. (MT) ( KPMNH); 1 F, Ishikawa Pref., Kaga City, Mt. Kariyasuyama , 7-18 Jul 2002, K. Esaki leg. (MT) (TMNH); 1 F, Ishikawa Pref., Hakusan City, Sannomiya, 6-18 Sep 2009, H. Fukutomi leg. (MT) ( MU); 1 M, Ishikawa Pref., Hakusan City, Togadani, 18 May-4 Jun 2010, H. Fukutomi leg. (MT) ( MU); 1 F, Hyogo Pref., Kami Town , Ojiro-ku, Niiya, Mikata-kogen, 26 Jun-18 Jul 2011, S. Fujie leg. (MT) ( KPMNH) .

Description.

Female (n = 14). Body length 4.1-6.0 mm, polished, coriaceous, covered with silver setae.

Head 0.5 × as long as wide. Clypeus 2.1-2.4 × as broad as high, flat in lateral view. Face 1.88-2.2 × as broad as high, densely punctate, convex medially in lateral view, separated from clypeus by shallow clypeal sulcus. Inner orbits almost parallel (Fig. 4B ). Length of malar space 1.1-1.15 × as long as basal mandibular width. POL 2.0-2.1 × as long as OD. OOL 1.0-1.2 × as long as OD. POL 2.0-2.2 × as long as OOL. Antenna with 20-21 flagellomeres. FL I 1.15-1.35 × as long as FL II. MP IV 1.45-1.66 × as long as MP V.

Mesosoma. Lateral aspect of pronotum rugulose anteriorly. Mesoscutum densely punctate (separated by ca. 0.5-1.0 × their diameter) (Fig. 4C ). Scutellum finely and sparsely punctate (separated by ca. 1.5-2.0 × their diameter). Lower part of mesopleuron coarsely and sparsely punctate. Sternaulus indistinct. Propodeum without rugae and carinae (Fig. 4D ), rounded in lateral view. Fore wing length 4.0-5.0 mm. Nervellus intercepted below middle. Hind femur 3.75-4.0 × as long as maximum depth in lateral view. Hind tibia 8.0-9.5 × as long as maximum depth in lateral view. Ratio of length of hind first to fifth tarsomeres 1.0: 0.6: 0.5: 0.3: 0.25-0.3.

Metasoma. T I square in dorsal view (Fig. 9H ), 1.0-1.1 × as long as maximum width, rugulose laterally. Latero-median carina present basal ca. 0.3 of T I (Fig. 9H ). T II 0.86-1.0 × as long as maximum width, strigose except for posterior margin smooth.

Coloration (Fig. 4A-D ). Body (excluding wings and legs) black to blackish-brown. Face with a large white median spot (this spot connected with white clypeus). Clypeus, palpi, tegula, subtegular ridge, upper mesepisternum and scutellum white. Mandible white, except for apex and base. Lateral aspect of pronotum with a white spot posteriorly. Antenna brown. Veins and pterostigma yellowish-brown to brown. Legs whitish-yellow. Hind coxa with a dorsal blackish-brown stripe. Hind femur brown. Hind tibia and tarsomere black. Base of hind tibia tinged with white.

Male (n = 2). Similar to female. Inner orbits weakly divergent downward (Fig. 4F ).

Coloration (Fig. 4E, F ). Body (excluding wings and legs) black to blackish-brown. Clypeus, palpi, face, ventral surface of antenna, malar space, propleuron, epicnemium, mesosternum, tegula, subtegular ridge, upper mesepisternum and scutellum white. Gena tinged with white ventrally. Mandible white except for apex. Lateral aspect of pronotum tinged with white ventrally and posteriorly. Mesoscutum with white shoulder marks. Mesopleuron with a large white marking; it is enlarged anteriorly. Wings hyaline. Veins and pterostigma yellowish-brown to brown. Legs white. Fore and mid tarsi, apex of hind trochantellus, base and apex of hind femur and hind tarsomeres brown. Hind coxa with a dorsal brown stripe. Hind tibia tinged with brown.

Distribution.

Japan (Hokkaido and Honshu). Outside Japan, this species has been recorded from Russia and South Korea ( Balueva and Lee 2016 and Yu et al. 2016).

Bionomics.

Host unknown.

Remarks.

This is the first record of this species from Honshu.

Figures

Figure 4. Woldstedtius karafutensis (Uchida, 1957) (A-D. female; E, F. male) - A, E. Habitus; B, F. Head, frontal view; C. Mesonotum, dorsal view; D. Propodeum, dorsal view.

Figure 9. Japanese Woldstedtius A, G. W. f. flavolineatus (Gravenhorst, 1829); B, I. W. kuroashii (Uchida, 1957); C, D, K. W. takagii (Uchida, 1957); E. W. alpicola sp. nov.; F. W. biguttatus (Gravenhorst, 1829); H. W. karafutensis (Uchida, 1957); J. W. punctatus sp. nov. (E, J. holotype; B, I. paratype) - A, B. head, lateral view; C. head, frontal view; D. propodeum, lateral view; E-K. T I, dorsal view.