Plegapteryx is a genus of moths in the family Geometridae erected by Gottlieb August Wilhelm Herrich-Schäffer in 1856.

Species Plegapteryx anomalus Herrich-Schäffer, Plegapteryx hellingsi Carcasson, 1962 Plegapteryx obscura Holland, 1893 Plegapteryx peregrinus Carcasson, 1962 Plegapteryx prouti Bethune-Baker, 1927 Plegapteryx purpurascens Holland, 1893 Plegapteryx sphingata Warren, 1895 Plegapteryx subsplendens Holland, 1893

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