Rivula dimorpha is a species of moth in the family Erebidae. It was described by John Fryer in 1912. This species can be found in the Seychelles, La Réunion, Madagascar,afromoths and is widespread in continental Africa from Nigeria to South Africa.
It has a wingspan of 18mm.Fryer, 1912. The Lepidoptera of Seychelles and Aldabra, exclusive of the Orneodidae and Pterophoridae and of the Tortricina and Tineina. Transactions of the Linnean Society of London (2)15(Zool.)(1):1–28; pl. 1, fig.10 - on page 12
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