Insect Metamorphosis

INCOMPLETE Metamorphosis Has THREE stages COMPLETE Metamorphosis Has FOUR stages

3 STAGES of INCOMPLETE METAMORPHOSIS 1.Egg 2.Nymph 3.Adult BIG IDEA: Nymphs resemble adults.

Egg A female insect lays eggs. These eggs are often covered by an egg case which protects the eggs and holds them together.

Nymph The eggs hatch into nymphs. Nymphs looks like small adults, but usually they do not have wings. Insect nymphs eat the same food as adults. Nymphs shed or molt their exoskeletons and replace them with larger ones several times as they grow. Most nymphs molt 4-8 times.

Adult The insects stop molting once they reach their adult size. By this time they have also grown wings.

4 STAGES of COMPLETE METAMORPHOSIS 1.Egg 2.Larva 3.Pupa 4.Adult BIG IDEA: Larva do NOT resemble adult.

Egg A female insect lays eggs.

Larva(e) Larvae hatch from the eggs. The larvae do not look like the adults. They usually have a worm-like shape. Larvae molt their skin several times and they grow slightly larger. Larvae eat A LOT of food. Examples of larvae: mealworms, maggots, caterpillars, grubs

Pupa(e) Larvae make cocoons. The insects do not eat while in pupae stage. During this stage bodies develop into adult shapes with wings, legs, internal organs, etc.

Adult The adults emerge from the cocoon.