Synergus japonicus Walker, 1874

IRENE LOBATO-VILA, ALBA SALA-NISHIKAWA, GEORGE MELIKA, GRAHAM N. STONE, CHANGTI TANG, MAN-MIAO YANG, ZHIQIANG FANG, YING ZHU, YIPING WANG, SUNGHOON JUNG, JAMES A. NICHOLLS & JULI PUJADE-VILLAR, 2022, A catalogue, revision, and regional perspective of Eastern Palaearctic and Oriental oak gall wasps and their inquilines (Hymenoptera: Cynipidae: Cynipini, Synergini, Ceroptresini), Zootaxa 5161 (1), pp. 1-71 : 42

Synergus japonicus Walker, 1874

Synergus japonicus Walker, 1874: 309 , ♀ [♂ in Pujade-Villar et al. (2014b: 540) ]

Distribution. Japan (Honshu, Kyushu) ( Walker 1874: 309; Abe 1990: 2; Abe 1992b: 528; Pujade-Villar et al. 2014b: 540), China (Beijing, Henan, Hunan, Zhejiang Provinces) ( Melika et al. 2004: 328; Pujade-Villar et al. 2014b: 540; Lobato-Vila et al. 2021a: 352), South Korea ( Abe et al. 2007: 202), and the Russian Far East ( Schwéger et al. 2015a: 489).

Remarks. In Lobato-Vila et al. (2021a), new material of S. japonicus from China was identified as originating from galls of Andricus mukaigawae on Q. fabri (sect. Quercus ). According to Pénzes et al. (2018), A. mukaigawae is found on Q. aliena , Q. dentata , Q. griffithii , Q. mongolica var. grasseserrata , and Q. serrata (sect. Quercus ), but not on Q. fabri .

Remarks (2). Redescribed and illustrated by Pujade-Villar et al. (2014b).

Biology. Reared from galls of Andricus kashiwaphilus ŏ, A. mukaigawae ŏ and Biorhiza nawaii ♂ ♀ on Q. dentata and Q. serrata (sect. Quercus ) ( Table 2; Abe 1990; Melika et al. 2004; Pujade-Villar et al. 2014b).