Synergus ishikarii Melika & Schwéger, 2015

Synergus ishikarii Melika & Schwéger in Schwéger et al. (2015a): 472, ♀ & ♂.

Distribution. Japan (Hokkaido) (Schwéger et al. 2015a: 472, 475), South Korea (Lobato-Vila et al. 2020d: 187), and China (Hubei, Zhejiang Provinces) (Lobato-Vila et al. 2021a: 352).

Biology. Reared from galls of an undetermined Ussuraspis ŏ and undetermined leaf galls on Q. dentata (sect. Quercus), undetermined leaf galls on Q. mongolica (sect. Quercus) (Schwéger et al. 2015a), and Trichagalma acutissimae ŏ on an undetermined Quercus (probably section Cerris) (Lobato-Vila et al. 2020d) (Table 2).