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INSECT METAMORPHOSIS

INSECT METAMORPHOSIS. Insects and Diseases. COMPLETE METAMORPHOSIS. EGG-LARVA-PUPA-ADULT. Larva: Several instars Molt between each Most growth in final stages All growth occurs as larva. Pupa: Resting stage Some insects pupate in cocoons Little or no movement Wings appear here.

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INSECT METAMORPHOSIS

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  1. INSECT METAMORPHOSIS Insects and Diseases

  2. COMPLETE METAMORPHOSIS • EGG-LARVA-PUPA-ADULT

  3. Larva: • Several instars • Molt between each • Most growth in final stages • All growth occurs as larva

  4. Pupa: • Resting stage • Some insects pupate in cocoons • Little or no movement • Wings appear here

  5. Adult: • Adult stage often appears as vastly different than larva stage. • Larva and adults may feed on completely different sources of food.

  6. SIMPLE METAMORPHOSIS • EGG-NYMPH STAGES- ADULT

  7. Nymph stages are similar in appearance to the adult stage except for SIZE (grasshoppers) • Lack wings • Several instars • Growth • Nymph stages generally feed on the same food sources as adults.

  8. Adults • No more growth • Wings • Able to reproduce

  9. Simple Metamorphosis

  10. Metamorphosis Timing • Some insect species complete their lifecycle several times each year (known as generations or broods). • Other insect species may require a number of years to complete one life cycle (17 year cicada).

  11. The End

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