Heliconius Butterfly Metamorphosis 1. The egg is resting on a vine, waiting to hatch. It will stay like that for three to five days. 2. A tiny larva or caterpillar eats its way out of the tiny egg. The larva only eats. It feasts on its egg! 3. When the caterpillar is a little bit older, it will shed its skin. It will go through five entirely different stages. Their stages are called instars. In about two weeks the quickly growing larva will have shed (at different times) four layers of skin! 4. When fully grown, the larva finds a quiet spot and spin a sticky silk pad. It then hangs upside down for one or two days. The rigid skin divides around the head. The prepupa wriggles which sends the skin towards its end. 5. After the prepupa gets itself out of the skin, it finds a balanced footing on the sticky silk pad. 6. The pupa stays quite motionless as its newfangled skin begins to dry and blacken. Within the dark skin, the pupa goes into a ten day metamorphosis. Hormone changes start the breaking of the larva tissue and rebuild into adult hormones. 7. When the shell at last breaks open, the world gets another flying, fancy butterfly. Females meet males and the cycle restarts at #1!