Saturniid moths undergo a complete metamorphosis: egg, larva (caterpillar), pupa, and adult.
They lack a frenulum (a structure locking the wings), instead having hindwings that overlap the forewings, giving the impression of a single, continuous, broad wing surface. The Life Cycle: "Survival of the Fattest" saturniid moth
Many species feature prominent, circular "eyespots" on their wings, which resemble eyes and are believed to intimidate or confuse predators. Saturniid moths undergo a complete metamorphosis: egg, larva