Heterospilus (Heterospilus) austriacus ( Szepligeti , 1906)

Belokobylskij, Sergey A. & Ku, Deok-Seo, 2021, Review of species of the genus Heterospilus Haliday, 1836 (Hymenoptera, Braconidae, Doryctinae) from the Korean Peninsula, ZooKeys 1079, pp. 35-88 : 35

Heterospilus (Heterospilus) austriacus ( Szepligeti, 1906)

Figs 1 , 2

Atoreuteus austriacus Szépligeti, 1906: 605; Papp, 1984: 177 (as synonym of H. sicanus (Marshall)).

Heterospilus austriacus : Belokobylskij and Tobias 1986: 34; Yu et al. 2016; Tang et al. 2013: 2002 (as valid species).

Heterospilus ater Fischer, 1960: 36. Syn. nov.

Type material examined.

Lectotype of Atoreuteus austriacus Szépligeti, 1906: female, "Austria, Wien Umgbg", "Wien Umgbg", "Lectotypus ♀ Atoreuteus austriacus Szépl. 1906., des. Papp J., 1969", "Hym. Typ. No 1650 Mus. Budapest", "♀ Heterospilus austriacus ( Szépl.), Det. C. v. Achterberg, 1979" (HNHM). Holotype of Heterospilus ater Fischer, 1960: female, [Austria] "St. Marx, Wien, 24.5.[19]59, leg. Fischer", " Heterospilus ater n. sp., det. Fischer", “Holotype” (NHMW).

Additional material examined.

South Korea: 1 female, Kyŏnggi, Suwon, Mt. Yŏgi, 11.V.1994, D.-S. Ku leg. (NIBR) ; 1 female, Seoul-si, Hongrung, Forestry Research Institute , light trap, VII.1998, S.-H. Gang leg. ; 1 female, Jeonnam-do, Yeongam-gun, Gunseo-myeon , Dogap-ri , Temple Dogapsa ( Mt. Weolchulsan ), light trap, 24-25.VII.1990, J.-S. Jeon leg. ; 1 female, Gyeongsangnam-do, Sancheong-gun, 30 km NNW of Jinju ( Chinju ), forest, h = 800 m, 12.VI.2002, S. Belokobylskij leg.

Distribution.

Korean Peninsula ( Ku et al. 2001); China, Russia (European part, Urals, Siberia, Far East), Kazakhstan, Transcaucasia, Central and Western Europe ( Yu et al. 2016; Belokobylskij et al. 2019).

Remarks.

Species Atoreuteus austriacus Szépligeti, 1906 was synonymised under Dentrosoter sicanus Marshall, 1888 by J. Papp (1984, 2004). However, our study of the types specimens of both species showed that H. austriacus differs distinctly from H. sicanus (holotype: female, with labels “Type” (round with red ringing), "Marshall coll. 1904-120", Heterospilus sicanus Marsh. (Sicily)", "Almost certainly type of Dendrosoter sicanus Msh., G. Nixon, 25.I.38" (handwriting by Nixon), "B.M. Type Hym. 3c.1751" (NHMUK)) by the short ovipositor sheath, which is 0.3-0.4 × as long as the metasoma, 0.5-0.6 × as long as the mesosoma and 0.2-0.3 × as long as the fore wing (long, 0.8 × as long as the metasoma, 1.1 × longer than the mesosoma and 0.5 × as long as the fore wing in H. sicanus ), long and entirely sculptured second metasomal tergite (second tergite short and smooth laterally), mesopleuron smooth medially on wide area (almost entirely rugose-striate with granulation in H. sicanus ), and vertex weakly and interruptedly transverse striate (entirely and densely striate in H. sicanus ). As a result, this species name was recently restored as a valid species Heterospilus austriacus ( Szépligeti) from the synonymy of H. sicanus ( Tang et al. 2013).

The study of the large Heterospilus material and type of specimens belonging to H. austriacus and H. ater distinctly showed significant variability in the range of the intensity of the subbasal transverse furrow and its sculpture on the third metasomal tergite, the main diagnostic character of the discussed species. As a result, Heterospilus ater Fischer, 1960 is here synonymised under H. austriacus ( Szépligeti, 1906), syn. nov.

Figures

Figure 1. Heterospilus (Heterospilus) austriacus (Szepligeti, 1906), female, lectotype A habitus, dorsal view B head, dorsal view C basal segments of antenna D head and anterior part of mesosoma, lateral view E mesosoma, dorsal view F mesosoma, lateral view G propodeum and three basal tergites of metasoma, dorsal view

Figure 2. Heterospilus (Heterospilus) austriacus (Szepligeti, 1906), female, lectotype A fore wing B hind wing C metasoma, dorsal view D metasoma, lateral view