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butterfly, (superfamily Papilionoidea), any of numerous species of insects belonging to multiple families. Butterflies, along with the moths and the skippers, make up the insect order Lepidoptera. Butterflies are nearly worldwide in their distribution. Although their larvae may be destructive to certain plants, butterflies are major pollinators of the world’s wild and domesticated flowering plants, and all stages of their life cycle are important to local food webs. For more detailed coverage, see also Lepidoptera...