Blue tiger butterflies

Tirumala limniace, also called the blue tiger, is a large butterfly with a wingspan of 75 to 100 millimetres belonging to the Danainae group of the brush-footed butterfly family. They are brownish-black in colour and patterned with bluish-white, semi-transparent spots and lines which consists of the pigment called pterobilin. Perhaps surprisingly, the males are smaller than the females and can be identified by a small pouch near the hind wing which is used to spread a scent that attracts the females.
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