Phyllonorycter cretata (Kumata, 1957)

(Figs 4C, 12A)

Material examined. Russia: SO, Sakhalin Island, Yuzhno-Sakhalinsk, BGIS, 47.05N, 142.74E, 57 m alt., Quercus mongolica, 12.VII.2017, 1 larva, NK629 , MK 403709, deposited in INRA; same location, host and collection date, 1 male (reared from leaf mine), NK- 85-17-4 / [16-male] (Fig. 4C), deposited in SIF.

Leaf mine. The mine is contracted white elongated blotch, with one pronounced fold on the epidermis; situated between the two secondary veins on the lower side of the leaf (Fig. 12A). Ocassionally up to seven mines per a leaf were recorded in RFE. Pupation in the mine.

Trophic specialization. Monophagous on Quercus: Q. mongolica subsp. crispula, Q. mongolica, Q. serrata (Fagaceae) (De Prins & De Prins 2018).

Distribution. Russia: RFE—AO, KK, PK, SO (Baryshnikova 2008, 2016); Japan (Kumata 1957), South Korea (Kim & Byun 2017).