What do Lepidoptera and Papilionoidea mean?
Butterflies and moths together are called Lepidoptera in the classification of insects, Lepidoptera is the order or niche for them both. Their wings are covered with tiny scales and that is where the name Lepidoptera comes from. Butterflies alone are called Papilionoidea which is the superfamily of butterflies. In some older classifications another superfamily, Hesperioidea (the Skippers) were regarded as butterflies, but these days they are excluded because of their closer resemblance to Moths.