Biorhiza nawai (Ashmead, 1904)

Dryophanta nawai Ashmead, 1904: 80, ♀.

Diplolepis nawai (Ashmead) Dalla-Torre & Kieffer (1910: 355), ♀.

Biorhyza [sic] nawai (Ashmead) Monzen (1931: 198), ♀.

Diplosis [sic] nawai (Ashmead) Shinji (1944: 127), ♀.

Biorhiza weldi Yasumatsu & Masuda, 1955: 62, ♂ ♀ & ǒ [syn. in Pujade-Villar et al. (2003b: 169)].

Distribution. China (Beijing Province) (Abe et al. 2007: 197), Japan (Honshu, Kyushu) (Ashmead 1904: 81; Nawa 1906: 9; Mukaigawa 1913b: 351; Mukaigawa 1922: 206; Niijima 1913: 289; Monzen 1929: 353; Monzen 1931: 193; Monzen 1954: 25; Matsumura 1931 according to Sakagami 1952; Shinji 1938a: 431; Shinji 1944: 127 (photo 234) and 400; Ishii 1949: 100; Sakagami 1952: 74; Shiraki 1952: 102; Yasumatsu & Masuda 1955: 63; Masuda 1972: 222), Korean Peninsula (Saito 1932: 102; Kim et al. 1994: 223; Pujade-Villar et al. 2020a: 1213), and the Russian Far East (Kovalev 1965: 37).

Remarks. The alternating lifecycle was closed and the asexual generation was described by Yasumatsu & Masuda (1955).

Remarks (2). Shinji (1944) miswrote the name of the species (‘ Diplosis nawai ’), but on page 399 the generic name appeared correctly written as Diplolepis nawai . On the other hand, Shinji (1944) wrote ‘Niijima (1911)’ instead of ‘ Niijima (1913) ’ (see Distribution).

Biology. The bud galls of the sexual generation and the root galls of the asexual generation both develop on Q. dentata, Q. mongolica and Q. serrata (sect. Quercus) (Table 1; Yasumatsu & Masuda 1955; Pujade-Villar et al. 2020a).