Synergus symbioticus Schwéger & Melika, 2015

Synergus symbioticus Schwéger & Melika in Schwéger et al. (2015a): 482, ♀ & ♂.

Distribution. Japan (Hokkaido), the Russian Far East (Schwéger et al. 2015a: 482, 485), China (Zhejiang Province) (Pujade-Villar et al. 2017b: 61–62), and South Korea (Lobato-Vila et al. 2020d: 191).

Biology. Reared from galls of Andricus hakonensis ŏ, A. kashiwaphilus ŏ, A. pseudoflos ŏ and undetermined leaf galls on Q. dentata, Q. mongolica and Q. serrata (sect. Quercus) (Table 2; Schwéger et al. 2015a; Pujade-Villar et al. 2017b; Lobato-Vila et al. 2020d).