insects (e.g., dragonflies
, true bugs
) undergo gradual, or incomplete, metamorphosis. Immature stages (usually called nymphs
) go through a series of molts, gradually assuming an adult form. Since the wings develop on the outside of the body, these groups are called exopterygotes
. Some orders have immature stages that are aquatic. These possess specialized structures for aquatic life, such as gills, and are called naiads
, or larvae.
) have a four-stage life cycle: egg, larva, pupa, and adult (imago).
- Antlions, Lacewings and Allies
- Ants, Bees, Wasps and Sawflies
- Scorpionflies, Hangingflies and Allies