Arguably the most successful group of animals to have existed, and they will significantly out number all other groups of animal in your garden. Most insects are benign, although some (eg. aphids, and hornworm larvae) can be pests. Similarly, many are encouraged as predators to eat those that are considered pests (e.g. Ladybugs and lacewings).
Insects typically have six legs, although larvae are an obvious exception. Similarly, most are capable of flight although not necessarily in all stages of growth.
Use this tag for questions about insects in the garden or landscape. For an unknown insect, also add the identification tag and include a photo. For questions about controlling insects, add the pest-control tag.