Butterflies usually fly during the day and moths generally at night. Butterflies usually put their wings together above their body when at rest, exposing their body, while moths will fold them over each other.
Another difference is that butterflies have clavate or club-like antennae or feelers, but the feelers of moths are feathery (pectinate) antennae.
As well, moths leave a ‘dust’ behind them when trapped in a drawer or the bottom of a cupboard, for instance, as they try to escape.
