Paramilionia is a monotypic moth genus in the family Geometridae. At present there is only one species in this genus: Paramilionia rubroplagata, described from Sierra Leone. Although, there are some doubts about the labels of the types and this is possibly a synonym of the South American Sangala gloriosa. Both the genus and species were first described by George Thomas Bethune-Baker in 1906.
It has a wingspan of 50 mm. The wings are blackish, with a strong deep blue metallic lustre.Bethune-Baker (1906). "Descriptions of African Lepidoptera". Annals and Magazine of Natural History. (7)18: 339–346, 473–474.
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