Photo: Ron Mader, Human Butterfly
Butterfly = a nectar-feeding insect with two pairs of large, typically brightly colored wings that are covered with microscopic scales. Butterflies are distinguished from moths by having clubbed or dilated antennae, holding their wings erect when at rest, and being active by day.
Wikipedia: Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises the large superfamily Papilionoidea, which contains at least one former group, the skippers (formerly the superfamily “Hesperioidea”) and the most recent analyses suggest it also contains the moth-butterflies (formerly the superfamily “Hedyloidea”). Butterfly fossils date to the Paleocene, which was about 56 million years ago.
Elsewhere on the Web
Biodiversity Heritage Library
Die Gross-Schmetterlinge der Erde : eine systematische Bearbeitung der bis jetzt bekannten Gross-Schmetterlinge : Bd.6 (1935). Stuttgart :Alfred Kernen,1909- The large butterflies of the earth: a systematic treatment of the previously known large butterflies: Vol. 6 (1935)