Andricus japonicus Ashmead, 1904 Species inquirenda
Andricus japonicus Ashmead, 1904: 81, ♀.
Distribution. Japan (Honshu) (Ashmead 1904: 81).
Remarks. Uncertain status. The type (a single female) must be found and revised.
Remarks (2). See Remarks 3, 4, 5, and 6 for Andricus mukaigawae .
Biology. Unknown (Ashmead 1904). According to Monzen (1929), A. japonicus induces galls on Q. serrata (= Q. glandulifera) (sect. Quercus).