Butterflies usually fly during the day. Their antennae tips are clublike, usually with swollen tips. They pupate as a chrysalis, usually attached to a plant or other object. They are rarely considered destructive. (Skippers are technically in the butterfly superfamily, but they are quite distinct.)
Skippers, like other butterflies, usually fly during the day. Their antennae are like those of other butterflies, but the tip is turned back like a hook. They typically have thickish, mothlike bodies, and many have drab colors. The larvae often hide in folded-over leaves by day. Skippers are technically a subdivision (family) of the butterflies.
Moths usually fly at night and are often attracted to lights. Their antennae are feathery or threadlike (usually not clublike), and they generally have plump, furry bodies. Many are drab, but several species have bright colors, eyespots, and other beautiful markings. They typically rest with wings folded flat or with wings folded like a gable over their backs. The larvae commonly spin cocoons or pupate in leaf litter or underground. The larvae of several species are considered pests.