Synergus belizinellus Schwéger & Melika, 2015

Synergus belizinellus Schwéger & Melika in Schwéger et al. (2015a) . Zootaxa 3999 (4): 462. Type material: PHMBL (holotype), paratypes in PHMBL and USNM according to Schwéger et al. (2015a).

Material examined (5♂ & 7♀). Newly reared material deposited in UB with the following data: KOR: 18, Dae- jeon, Chungnam National University campus (South Korea), Ex. sexual galls of Andricus songshui, Q. serrata, (05. v.2018) 15–31.v.2018, Roca-Cusachs leg.: 3♂ & 5♀ ; KOR: 23, same as KOR 18, but (10.v.2019), M.J. Kang leg.: 1♂ & 1♀; KOR: 27, Woljeon-ro, Geumgu-myeon, Gimje-si, Jeollabuk-do (South Korea), Ex. sexual galls of Andricus songshui, Q. serrata, (10.v.2019) 10–31.v.2019, M.J. Kang leg.: 1♂ & 1♀ .

Distribution. Far Eastern Russia (Primorkij Kraj), Japan (Hokkaidô island) (Schwéger et al. 2015a), and mainland China (Liaoning province) (Pujade-Villar et al. 2017). First record of this species for South Korea (this paper).

Biology. Reared mainly from asexual leaf galls of Belizinella vicina Kovalev, 1965 on Q. mongolica and from undescribed leaf galls on Q. dentata and Q. mongolica (Schwéger et al. 2015a) . Also, from undescribed leaf galls on Q. mongolica (Pujade-Villar et al. 2017) . The new material included in this paper was reared from sexual galls of Andricus songshui Tang & Melika, 2011 on Q. serrata .