Prothoe franck, the blue begum, is a butterfly species found in Assam in north-eastern India and throughout a large part of South-East Asia.
It belongs to the leafwings (Charaxinae) in the brush-footed butterflies family.Seitz, A. 1912–1927. Die Indo-Australien Tagfalter. The Macrolepidoptera of the World 9: 1–766;pdf 767–1201,pdf pls 1–175.pdf
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