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 Saphonecrus yukawai Wachi, Ide & Abe, 2011 Saphonecrus yukawai Wachi, Ide & Abe in Wachi et al . (2011a) : 370 , & . Synergus yukawai (Wachi, Ide & Abe) Schwéger et al . (2015b: 79) . Saphonecrus yukawai Wachi, Ide & Abe ; Ide et al . (2018b) : 8 [comb. rev.]. Distribution. Japan (Honshu, Kyushu) ( Wachi et al . 2011a: 371–372 ). Biology. Reared from midge galls of Ametrodiplosis acutissima (Monzen, 1937) ( Diptera : Cecidomyiidae ) on Q. acutissima (sect. Cerris ) (Table 2; Wachi et al . 2011a ).