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In page Charaxes zoolina:

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The group differs from all the others in Charaxes in the male having a tail on vein 2, but the female having two long tails on veins 2, 4. There are two different forms, one with black markings on a greenish white base colour (wet-season form) and one with reddish-brown markings on red-yellow whitish colour (dry-season form). These forms can be from eggs of the same female.