Ceroptres kovalevi Belizin, 1973

Ceroptres kovalevi Belizin, 1973 . Revue d’Entomologie d’URSS 52 (1): 37. Type material: ZIN [type material examined by the first and the last authors in Lobato-Vila & Pujade-Villar (2019)].

Ceroptres masudai Abe, 1997 . Appl. Entomol. Zool. 32 (1): 253. Type material: KPU according to Abe (1997). Synonymized by Lobato-Vila & Pujade-Villar (2019: 33).

Material examined (1♀). Newly reared material deposited in UB with the following data: KOR: 14, Daejeon, Chungnam National University campus (South Korea), Ex. asexual galls of Plagiotrochus kunugiphagus, Q. acutissima, (30.ix.2017) 16–31.x.2017, Roca-Cusachs leg.

Distribution. Far Eastern Russia, Japan, South Korea and Eastern mainland China (Belizin 1973; Abe 1997; Abe et al. 2007; Wang et al. 2012; Lobato-Vila & Pujade-Villar 2019; this paper).

Biology. Originally reared from an unknown gall (Belizin 1973). According to Pénzes et al. (2012), previosuly reared from galls of Andricus kashiwaphilus Abe, 1998, A. mukaigawae (Mukaigawa, 1913) and Ussuraspis nervosa Kovalev, 1965 collected in Japan and Far Eastern Russia (Abe 1997; Melika 2012); from galls of Andricus targionii Kieffer, 1903 and A. pseudoflos (Monzen, 1954) in Japan (Abe 1997; Abe et al. 2007); from leaf galls of an undescribed Ussuraspis species in Far Eastern Russia (Melika 2012) and, occasionally, from galls of Andricus hakonensis (Ashmead, 1904) (= A. attractus Kovalev, 1965, = A. symbioticus Kovalev, 1965) (Wachi & Abe 2010). The galls from which C. kovalevi (= C. masudai) has been reared have been collected on Quercus dentata Thunb. and Q. serrata Murray (Abe 1997; Abe et al. 2007; Wang et al. 2012). The new material included in this paper was reared from asexual galls of Plagiotrochus kunugiphagus (Ide & Abe, 2015) (new combination after Pujade-Villar et al. 2020) on Quercus acutissima Carruth.