Coleophora meridiogallica sp. n., a new species detected as a result of a DNA study, is described and compared with C. meridionella Rebel, 1912 with which it was confused. The new species whose larvae feed on Silene saxifraga is known only from a few departments of southeastern France.
Keywords: Lepidoptera, DNA barcodes, genitalia, Silene saxifraga.