The Order Lepidoptera comprises butterflies and moths, one of the most diverse and widespread groups of insects. Members are characterized by two pairs of scaled wings, a coiled proboscis for feeding on nectar or other liquids, and complete metamorphosis with distinct egg, larva (caterpillar), pupa (chrysalis or cocoon), and adult stages. Lepidopterans play vital ecological roles as pollinators, herbivores, and a food source for other animals. They exhibit a wide range of colors and patterns, which serve for camouflage, warning, or mating displays, and are found in nearly all terrestrial habitats worldwide.