Chrysaster hagicola Kumata, 1961

(Figs 14 D–E)

Material examined. Russia: PK, Gornotaezhnoe, forest around MTS, 43.68N, 132.17E, 224 m alt., Lespedeza bicolor, 3.VII.2016, 1 larva, NK551 , MK 403724, deposited in INRA.

Leaf mine. The mine is a whitish flat blotch, with a short preceding tunnel that starts nearby the main vein on the upper side of the leaf (Fig. 14D). The frass is attached to the epidermis and the bottom of the mine, making the central part of the mine darker. The larva uses this area as a shelter hiding itself especially when disturbed (Fig. 14E). It vacates the mine through a semicircular slip in the upper epidermis and pupates in an oval cocoon at the leaf margin.

Trophic specialization. Oligophagous on Fabaceae: Lespedeza bicolor, L. cyrtobotrya, Robinia pseudoacacia (De Prins & De Prins 2018) .

Distribution. Russia: RFE—PK (Kumata 1963; Baryshnikova 2008); Japan (Kumata 1961), Korea (Kumata et al. 1983), China (Liu et al. 2015).