A catalogue, revision, and regional perspective of Eastern Palaearctic and Oriental oak gall wasps and their inquilines (Hymenoptera: Cynipidae: Cynipini, Synergini, Ceroptresini) Author Al, Irene Lobato-Vila Et text Zootaxa 2022 2022-07-04 5161 1 1 71 http://dx.doi.org/10.11646/zootaxa.5161.1.1 journal article 10.11646/zootaxa.5161.1.1 1175-5326 6793652 20804225-E0CE-420A-B960-4831EE3A1E01 Synergus formosanus Schwéger & Melika, 2015 Synergus formosanus Schwéger & Melika in Schwéger et al . (2015a) : 469 , & . Distribution. Taiwan ( Schwéger et al . 2015a: 469 , 472), South Korea ( Lobato-Vila et al . 2020d: 187 ), and China ( Beijing , Gansu , Heilongjiang , Henan , Jilin , Liaoning , Shaanxi , Shandong , Zhejiang Provinces) ( Lobato-Vila et al . 2021a: 350–351 ). Biology. Reared from galls of Trichagalma formosana ŏ, T. formossana ssp. romevai ŏ, T . serratae ŏ and Plagiotrochus kunugiphagus ŏ on different section Quercus and section Cerris oaks (Table 2; Schwéger et al . 2015a ; Lobato-Vila et al . 2020d , 2021a ).