That the Danaine and Ithomiine species are distasteful is known.
One of these sub-species, merope, which ranges from the west coast to Victoria Nyanza, is polymorphic and occurs under three forms, namely (a) hippocoon, which mimics the Danaine Amauris niavius; (b) trophonius, which mimics the Danaine Limnas chrysippus; (c) planemoides, which mimics the Acraeine Planema poggei.
In the above-cited historical instance of mimicry amongst some South American Lepidoptera which formed the foundation of Bates' theory, species of butterflies, belonging to the Ithomiine genus Itura and the Danaine genus Thyridia, both unpalatable forms, resemble each other.
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