Transcript INSECT METAMORPHOSIS - Kirkwood Community College

Insects and Diseases
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EGG-LARVA-PUPA-ADULT
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Larva:
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Several instars
Molt between each
Most growth in final stages
All growth occurs as larva
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Pupa:
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Resting stage
Some insects pupate in cocoons
Little or no movement
Wings appear here
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Adult:
◦ Adult stage often appears as vastly different than
larva stage.
◦ Larva and adults may feed on completely different
sources of food.
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EGG-NYMPH STAGES- ADULT
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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.
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Adults
◦ No more growth
◦ Wings
◦ Able to reproduce
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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).