Trichagalma acutissimae (Monzen, 1953)

Aphelonyx acutissimae Monzen, 1953: 20, ǒ.

Trichagalma acutissimae (Monzen) Melika et al. (2010: 11), ǒ [♂ ♀ in Wang et al. (2016a: 407)].

Trichagalma glabrosa Pujade-Villar in Pujade-Villar & Wang 2012: 93, ǒ [syn. in Wang et al. (2016a: 407)].

Distribution. China (Henan Province) (Pujade-Villar & Wang 2012: 98), Japan (Honshu) (Shinji 1944: 67 (photo 114) and 68 (photo 115)); Monzen 1953: 21; Yukawa & Masuda 1996: 141, 143; Melika et al. 2010: 11), Korean Peninsula (Yukawa & Masuda 1996: 141, 143; Pujade-Villar et al. 2020a: 1217), and Taiwan (Pénzes et al. 2018: 281).

Remarks. The alternating lifecycle was closed and the sexual generation was described by Wang et al. (2016a).

Biology. The catkin galls of the sexual generation and the detachable leaf galls of the asexual generation both develop on Q. acutissima and Q. variabilis (sect. Cerris) (Table 1; Monzen 1953; Wang et al. 2016a).