Synergus formosanus Schwéger & Melika, 2015

Lobato-Vila, Irene, Kang, Minjoon, Roca-Cusachs, Marcos, Kim, Ilkwon, Jung, Sunghoon & Pujade-Villar, Juli, 2020, Taxonomic assessment of the inquiline fauna (Hymenoptera: Cynipidae Synergini, Ceroptresini) reared from cynipid galls on oaks (Quercus spp.) from South Korea, Zootaxa 4860 (2), pp. 179-198 : 187

Synergus formosanus Schwéger & Melika, 2015

Synergus formosanus Schwéger & Melika in Schwéger et al. (2015a) . Zootaxa 3999 (4): 469. Type material: PHMBL (holotype), paratypes in PHMBL, USNM and NCHU according to Schwéger et al. (2015a).

Material examined (7♂ & 12♀). Newly reared material deposited in UB with the following data: KOR 7: Dae- jeon, Chungnam National University campus, Ex. asexual galls of Trichagalma serratae , Q. variabilis , (15.iv.2018) 16–31.v.2018, Roca-Cusachs leg.: 3♀; KOR: 15, Jeju Island, Donbaekdonsan ( South Korea), Ex. asexual galls of Trichagalma serratae , Q. variabilis , (24.v.2018) 01–16.vi.2018, Roca-Cusachs leg.: 1♂; KOR: 28 & 39, Incheon, Jung-gu, Muui-dong, Mt. 151–1 ( South Korea), Ex. asexual galls of Trichagalma formosana , Q. acutissima , (18. v.2019) vi.2019, H. J. Shim leg.: 6♂ & 5♀; KOR: 30, Daejeon, Chungnam National University campus, Ex. asexual galls of Plagiotrochus kunugiphagus , Q. acutissima , (18.ix.2019), Roca-Cusachs leg.: 4♀.

Distribution. Taiwan (Nantou county) ( Schwéger et al. 2015a). First record of this species for South Korea (this paper).

Biology. Reared from galls of Trichagalma formosana Melika & Tang, 2010 on Quercus variabilis ( Schwéger et al. 2015a) . The new material included in this paper was reared from asexual galls of Trichagalma serratae on Q. variabilis , and from asexual galls of T. formosana and Plagiotrochus kunugiphagus on Q. acutissima .