1773, "insects with four scaly wings," the biological classification that includes butterflies and moths, coined 1735 in Modern Latin by Swedish botanist Carolus Linnaeus (Karl von Linné, 1707-1778) from Greek lepido-, comb. form of lepis (genitive lepidos) "(fish) scale" (related to lepein "to peel;" see leper) + pteron "wing, feather" (see pterodactyl).
