The family Phylliidae (often misspelled Phyllidae) is a family of stick insects and contains the extant true leaf insects or walking leaves, which include some of the most remarkably camouflaged leaf mimics (mimesis) in the entire animal kingdom. Because the family Phylliidae is the only one within the subfamily Phylliinae - which in turn is the only subfamily within the superfamily Phyllioidea - leaf insects are often equated with these taxa. They occur from South Asia through Southeast Asia to Australia.

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