Polycaena is a genus of butterflies of the subfamily Nemeobiinae within the family Riodinidae. The genus was erected by Otto Staudinger in 1886. The species are found in the eastern Palearctic, mainly in the Himalayas.Hemming, A.F. (1967). "The generic names of the butterflies and their type species (Lepidoptera: Rhopalocera)". Bulletin of the British Museum (Natural History). 1967, Suppl. 9.
Cladogram from the Catalogue of Life:
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