Redescriptions of three Meyrick's Asiatic elachistid species, with descriptions of two new species (Lepidoptera, Gelechioidea)

Elachista heteroplaca Meyrick, Ptilodoxa lorigera Meyrick and Platyphyllis leucosyrma Meyrick are redescribed. Elachista albrechti sp. n. (Nepal) and Elachista planicara sp. n. (Kuriles) are described. E. heteroplaca, P. lorigera, E. albrechti and E. planicara are assigned to a species group related to the Elachista (Cosmiotes) freyerella group. Platyphyllis leucosyrma is placed in the Elachista tetragonella group. The genera Ptilodoxa and Platyphyllis Meyrick are considered to be synonyms of Elachista Treitschke (syn. n.). A lectotype is designated for E. heteroplaca