Cimeliidae, the gold moths (formerly known as Axiidae), is a family of moths whose precise relationships within the macrolepidoptera are currently uncertain, but they currently represent the only family in a recently recognized superfamily whose nearest relatives include the butterflies, Calliduloidea, Drepanoidea, Geometroidea, Bombycoidea, Mimallonoidea, Lasiocampoidea, and the Noctuoidea. Uniquely, they have a pair of pocket-like organs on the seventh abdominal spiracle of the adult moth which are only possibly sound receptive organs. They are quite large and brightly coloured moths that occur in southern Europe and feed on species of Euphorbia. Sometimes they are attracted to light. The family was first described by Pierre Chrétien in 1916.