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Case moths (family Psychidae) on olive tree.Case moths spend most of their lives in the caterpillar phase; this part of their life cycle can last 1-2 years. As caterpillars, they never leave their cases. However, they can be very mobile, dragging their large cocoons along as they move around.
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The cocoon building materials are really small sticks. On the exterior of this case they cleverly weave sticks and leaves. The case has two openings, one at the top and other at the bottom. The caterpillar comes out from the top to feed and ejects the waste form the bottom end. The bottom opening, which is smaller than the top opening, is also the exit hatch for the emerging adult.
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Moth (Philenora aspectalella)
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Moth (Philenora aspectalella)
