Introduction to Moths

What a moth is, how it lives, and why moths matter more than their reputation suggests.

Published on 12 October 2026

Introduction

Moths and butterflies belong to the same group, the Lepidoptera. Most moths are night-fliers, though plenty are active by day.

Characteristics

Moths have two pairs of wings covered in scales, and their antennae are often feathery to detect scent at a distance. Many are dull in colour for camouflage, though some are strikingly bright.

Life cycle

Egg, larva (caterpillar), pupa and adult. The caterpillar feeds and grows, then spins a cocoon or builds a chrysalis.

Habitat and diet

Larvae eat leaves, bark, stored grain or wool, depending on the species. Adults usually take nectar, and some do not feed at all.

Importance in ecosystems

Moths pollinate wildflowers at night, feed birds and bats, and are an early-warning food source for a healthy habitat. A sudden decline usually signals a wider problem.

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