Phyllonorycter orientalis (Kumata, 1963)

(Fig. 12G)

Material examined. Russia: PK, Gornotaezhnoe, forest around MTS, 43.68N, 132.15E, 224 m alt., Acer pictum, 22.VII.2016, 1 male (reared from leaf mine), NK536 , MK 403726; same location, A. pictum, 23.VII.2016, 1 larva, NK535 , MK 403729; same location, A. saccharum, 26.VII.2016, 1 larva, NK538 , MK 403707, all deposited in INRA.

Leaf mine. The mine is an elongated contracted whitish blotch, without preceding epidermal tunnel, with one pronounced fold on the epidermis; situated on the lower side of the leaf nearby the leaf margin (Fig. 12G). Loose grains of frass are accumulated in the central part of the mine. From the upper side, the mine is white (Fig. 12G). Pupation in the mine.

Trophic specialization. Monophagous on Acer: A. carpinifolium, A. palmatum, A. pictum, A. pseudosieboldianum (Sapindaceae) (De Prins & De Prins 2018), A. saccharum (new record).

Distribution. Russia: RFE—PK, SO (Kuril Islands) (Ermolaev 1977; Baryshnikova 2016), European part (Baryshnikova 2008); Japan, Taiwan (Kumata 1963), Korea (Park & Han 1986).