Andricus kashiwaphilus Abe, 1998

IRENE LOBATO-VILA, ALBA SALA-NISHIKAWA, GEORGE MELIKA, GRAHAM N. STONE, CHANGTI TANG, MAN-MIAO YANG, ZHIQIANG FANG, YING ZHU, YIPING WANG, SUNGHOON JUNG, JAMES A. NICHOLLS & JULI PUJADE-VILLAR, 2022, A catalogue, revision, and regional perspective of Eastern Palaearctic and Oriental oak gall wasps and their inquilines (Hymenoptera: Cynipidae: Cynipini, Synergini, Ceroptresini), Zootaxa 5161 (1), pp. 1-71 : 12

Andricus kashiwaphilus Abe, 1998

Andricus kashiwaphilus Abe, 1998: 134 , ♂ ♀ & ǒ.

Distribution. China (Hebei, Liaoning Provinces) ( Weih 1965: 161; Pujade-Villar et al. 2016b: 20), Japan (Hokkaido, Honshu, Kyushu) ( Abe 1998: 134; Schwéger et al. 2015a: 479), Korean Peninsula ( Pujade-Villar et al. 2020a: 1210), and the Russian Far East ( Schwéger et al. 2015a: 478–479).

Remarks. The sexual generation has not yet been described (see Remarks 2 below) and the two generations in the lifecycle were linked by Abe (1991).

Remarks (2). Abe (1986) described the sexual form of Andricus mukaigawae (Mukaigawa, 1913) from galls found on several Quercus species. Later, all A. mukaigawae material obtained from Q. dentata was transferred to a new species named A. kashiwaphilus ( Abe 1998) . The characters used to differentiate both sexual forms ( A. mukaigawae vs A. kashiwaphilus ) are not mentioned in Abe (1998), and we assume that the sexual form of A. kashiwaphilus has not yet been formally described.

Remarks (3). The asexual generations of A. kashiwaphilus and A. mukaigawae are, according to Abe (1998), identical except for their karyotypes. However, Pujade-Villar et al. (2016b) mentions some morphological characters to differentiate them.

Biology. Andricus kashiwaphilus induces galls on Q. dentata (sect. Quercus ), forming integral leaf galls in the sexual generation and large flower- or burr-shaped bud galls in the asexual generation ( Table 1; Abe 1998; Abe et al. 2007; Melika 2012; Pujade-Villar et al. 2020a).