Andricus targionii Kieffer, 1903

Andricus targionii Kieffer, 1903: 5; Trotter (1903: 34), ǒ.

Distribution. China (Liaoning, Shaanxi Provinces) (Kieffer 1903: 6, corrected by Trotter 1903: 34; Dalla-Torre & Kieffer 1910: 495; Abe 1986: 442), Japan (Hokkaido, Honshu) (Abe 1986: 442; Abe et al. 2007: 197; Wachi et al. 2012: 4684), Korean Peninsula (Abe 1986: 442; Abe et al. 2007: 197; Wachi et al. 2012: 4684; Pujade-Villar et al. 2020a: 1213), and the Russian Far East (Abe 1986: 442).

Remarks. See Remarks for A. pseudoflos . The distribution and host plant mentioned in the original description (Kieffer 1903) were erroneous and were corrected by Trotter (1903).

Biology. Andricus targionii is a purely parthenogenetic species derived from A. kashiwaphilus by loss of the sexual generation from an ancestral cyclically parthenogenetic lifecycle (Abe 2007). It induces bur-shaped galls on Q. aliena and Q. mongolica (= Q. wutaishanica Mayr) (sect. Quercus) (Table 1; Abe 1986; Abe et al. 2007).