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A new species of Kisaura Ross (Philopotamidae) from Japan and a new species of Psychomyia Latreille (Psychomyiidae) from Russia are described. Kisaura imparis n. Sp. Is closest to Kisaura aurascens (Martynov, 1934), but the lateral processes of tergum Ⅹ are asymmetrical and the apex of tergum Ⅹ is different. Psychomyia poltavkaensis n. Sp.resembles Psychomyia n. Sp., but the shape of tergum Ⅸ+Ⅹ is more rounded, the apex of the basoventral process of each preanal appendage is unforked, and the inferior appendages are branched.