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A new species of the Stegana (Steganina) ornatipes species group (Diptera: Drosophilidae) is described from Hainan, China, S. (S.) xipengi sp. nov. Based on the mitochondrial ND2 and COI gene sequences, the relationships among eight species from mainland China of the ornatipes group, and their relationships to the undulata, nigrolimbata and shirozui species groups of the same subgenus, are investigated, using two species of the subgenus Stegana, S. emeiensis and S. quadrata, as outgroups. The result shows that S. (S.) mengla is debarred from the ornatipes group.