Gasteruption japonicum Cameron, 1888

van Achterberg, C., Sundukov, Yu. N., Lelej, A. S. & Belokobylskij, S. A., 2019, New data on Gasteruptiidae (Hymeno ¬ ptera) from the Russian Far East, Far Eastern Entomologist 381, pp. 1-8 : 5

Gasteruption japonicum Cameron, 1888

Gasteryption (!) sibiricum Semenov, 1892: 24, ♀, holotype, Russia, Krasnoyarsk, Streblov leg.; synonymized with G. subtile (Thomson, 1883) by Madl (1989); new synonymy proposed by CvA; syn. n .

SPECIMENS EXAMINED. Russia: Kunashir Island: caldera of volcano

Golovnin, 3.VIII 1989, 1♂, 1♀, AL; Tretyakovo, 21–22.VIII 2013, 1♀, Yu.

Sundukov & L. Sundukova. Primorskii krai: Vladivostok, Sedanka, 20.VI 1993, 1♂,

AL; Ussuriysky Nature Reserve , 27.VIII 1982, 1♀, AL; 10 km W Chernigovka ,

21.VI 1997, 1♀, AL; 20 km W Spassk-Dalniy, shore of Khanka Lake , 16.VII 2006,

1♀, S. Belokobylskij; 20 km SE Spassk-Dalniy, Evseevka , 17.VII 2006 , 2♀, S.

Belokobylskij ; Bolshaya Ussurka River, 20 km NW Melnichnoe, 2.VIII 1986, 1♂ ,

N. Kurzenko.

DISTRIBUTION. Russia: Kuril Island (new record), Primorskii krai (new record), Eastern Siberia, NW of European part. – Japan, China.

NOTES. The description of G. sibiricum contradicts the synonymization of G.

sibiricum with G. subtile (Thomson, 1883) by Madl (1989) and is not accepted here. The holotype (a female from Krasnoyarsk, Eastern Siberia collected by

Streblov and in the Morawitz collection) could not be found either in St. Petersburg or Moscow. The head is comparatively long (“capite oblong”) and the mesoscutum is very finely sculptured and matt (“mesonoto valde opaco, subtilissime fere microscopice subtransversim ruguloso subtiliterque disperse punctato, …”). This fits better with G. japonicum and G. sibiricum is, therefore, here synonymized with it.