Andricus pseudoflos (Monzen, 1954)

Cynips pseudoflos Monzen, 1954: 25, ǒ.

Adleria pseudoflos (Monzen) Kovalev (1965: 32), ǒ.

Andricus targionii in Abe (1986: 441), ǒ (non Andricus targionii Kieffer, 1903) [see Remarks below].

Andricus pseudoflos (Monzen) Abe (2007: 478), ǒ.

Distribution. China (Liaoning, Shaanxi Province) (Abe 1986: 442), Japan (Hokkaido, Honshu) (Monzen 1929: 351; Monzen 1954: 26; Shinji 1944: 47; Abe 1986: 442; Abe 2007: 478), Korean Peninsula (Abe 1986: 442; PujadeVillar et al. 2020a: 1212), and the Russian Far East (Kovalev 1965: 32; Abe 1986: 442).

Remarks. Abe (1986) considered this species a synonym of A. targionii Kieffer, 1903, but later Abe (2007) confirmed its status as a distinct valid species based on cytological data and host plant associations. Therefore, all A. targionii collected on Q. dentata mentioned in Abe (1986) belong to A. pseudoflos, whereas all the A. targionii collected on Q. aliena belong to A. targionii .

Biology. Andricus pseudoflos is a purely parthenogenetic species derived from A. mukaigawae by loss of the sexual generation from an ancestral cyclically parthenogenetic lifecycle (Abe 2007; Wachi et al. 2012). It induces flower-like leaf galls on Q. dentata (sect. Quercus) (Table 1; Abe 2007).