Abstract
Five new species of the genus Ypsolopha Latreille are described from East Asia: Y. atrobrunnella Ponomarenko et Sohn, sp. nov. from Russia and China; Y. acerella Ponomarenko, Sohn et Zinchenko, sp. nov. from Russia and Korea; Y. yangi Ponomarenko et Sohn sp. nov. from Russia and China; Y. tesselatidorsata Ponomarenko et Zinchenko sp. nov. from Russia; Y. lutisplendida Sohn et Wu, sp. nov. from China. The host plants are indicated for Y. atrobrunnella (Crataegus maximowiczii Schneid., Pyrus sp.), Y. acerella (Acer ginnala Maxim.) and Y. lutisplendida (Pinus tabulaeformis Carr.).