Aridelus rufotestaceus Tobias, 1986

Fujie, Shunpei & Maeto, Kaoru, 2022, The genus Aridelus Marshall (Hymenoptera, Braconidae, Euphorinae) from Japan, with description of a new species, ZooKeys 1092, pp. 105-122 : 105

Aridelus rufotestaceus Tobias, 1986

Fig. 5A-I

Aridelus rufotestaceus Tobias, 1986: 229 (English translation: 399); Chen and van Achterberg 1997: 18; Shaw et al. 2001: 132. [Type locality: Russia]

Aridelus rufiventris Luo & Chen, 1994: 483; Chen and van Achterberg 1997:18. Syn. nov. [Type locality: China]

Material.

Russia 1♀, holotype, Lazarevskoe, Sochi , forest along rivulet, 14.IX.1981, V. Tobias leg. (ZISP) . Japan Honshû: 1♂, Shizuoka Pref., Shizuoka City, Shimizu Ward, Muramatsu , collected as a host adult of Glaucias subpunctatus on 14.XII.2018, recognized a cocoon on 23.I.2019, and emerged on 8.II.2019, K. Itoyama & A. Tsunashima leg. (OMNH) ; 1♂, Toyama Pref., Toyama City, Arimine, Inonedani , 1120 m alt., 15-22.IX.2009, MsT., M. Watanabe et al. leg. (KPMNH) ; 1♀, Mie Pref., Taiki Town, Nishiki , 9-21.X.2007, MsT., M. Nakaseko leg. (MUNJ) ; 1♂, Kyôto Pref., Yawata City, Morigaito, left bank of Kidu River , 17.VI.2018, S. Fujie leg. (OMNH) ; 1♀, Nara Pref., Uda City, Haibarahagihara, Torimiyama-kôen, about 585 m alt., 20.VIII.2018, R. Itô leg. (OMNH). Hachijôjima Is. : 2♂♂, Eigo , 2.VI.1964, Y, Hirashima & M. Shiga leg. (NARO). Kyûshû : 1♂, Kumamoto Pref., Izumi Vil., Gokanosô, 1.VIII.1981, H. Kurokawa leg. (OMNH). Yakushima Is. : 1♀, Kankake, 25.VIII-28.IX.2007, MsT., T. Yamauchi leg. (KPMNH); Mt. Aiko , 8-28.VI.2007, MsT., T. Yamauchi leg. (KPMNH) ; 1♀, same data except 29.VII-25.VIII.2007. (KPMNH) ; 1♀, same data except 28.IX-2.XI.2007. (KPMNH) . Korea 1♂, Kyongsangpuk-do, Mt. Sudo , 700 m alt., 9-12.VII.1971, K. Yamagishi leg. (MUNJ) .

Distribution.

Japan ( Honshû: Shizuoka, Toyama, Mie and Kyôto Prefecture; Hachijôjima Is.; Kyûshû: Kumamoto Prefecture; Yakushima Is.); China, Georgia, Korea, Italy, Russian Far East ( Yu et al. 2016; Lee et al. 2017). New to Japan.

Hosts.

Glaucias subpunctatus (Walker, 1867) (a new record) and Nezara viridula (Linnaeus, 1758) ( Shaw et al. 2001) (both Pentatomidae ).

Remarks.

Chen and van Achterberg (1997) indicated the differences between A. rufiventris Luo & Chen and A. rufotestaceus Tobias from only one specimen of each taxon in the sculpture of the vertex, the condition of vein m-cu of the fore wing, the relative length of vein 1r-m of the hind wing, and the colour of the mesosoma, as shown in Suppl. material 1: Table S1. However, these characters could not separate the Japanese specimens into the two species (Suppl. material 1: Table S1). These are most likely intraspecific variations. Hence, A. rufiventris is considered a junior synonym of A. rufotestaceus .

Figures

Figure 5. Aridelus rufotestaceus Tobias, 1986, ♀ from Yakushima Is. (A, B, D, F, H) and ♂ from Toyama Prefecture (C, E, G, I) A habitus B, C head, dorsal view D, E head and mesosoma, lateral view F, G second submarginal cell and vein m-cu of fore wing H, I vein 1 r-m and 2 - SC + R of hind wing.