1. Phyllonorycter acutissimae (Kumata, 1963)

Lithocolletis acutissimae Kumata, 1963: 81–82 . TL: Honshū, Japan. TD: EIHU (Holotype).

Material examined. [ GG] 1♀, Suwon, 28 iv 1976 (leg. KT Park); 1♀, Suwon, 14 iii 1977 (JC Paik)-coll. NAAS ; 1♀, Mt. Dodram, 19 v 1990 (KT Park)-coll. HNUSEL ; [S] 5♀, 8♀, Hongneung, 28 iv 1998 (KS Oh & WY Jang), gen. slide no. HNUSEL-524,525 -coll. HNUSEL; [GW] 1♀, Chuncheon, 2 vii 1985 (KT Park); [CN] 1♀, Sejong, 12 vi 2015 (BK Byun), gen. slide no. HNUSEL-5233 - coll. HNU; [JN] 1♀, Mt. Yeongchwi, 23 v 2014 (BK Byun), gen. slide no. HNUSEL-5243 - coll. HNUSEL.

Distribution. Korea, Japan.

Host plants. Quercus sp. [ Fagaceae] in Korea (Kumata et al. 1983; De Prins & De Prins 2006 –2023). Castanea crenata, Quercus acutissima, Q. aliena, Q. crispula, Q. mongolica subsp. crispula, Q. serrata, Q. variabilis [ Fagaceae] in Japan (Kumata 1963a, 1982; Sato et al. 2002; Ishida et al. 2004; De Prins & De Prins 2006 –2023).