Why is the adult Comet Moth unable to feed after emerging from its pupa?

Answer

The adult lacks a functioning digestive system because its mouthparts have atrophied.

The adult stage represents a biological trade-off; the moth foregoes feeding entirely, as its mouthparts have atrophied, relying solely on fat reserves accumulated during the larval stage.

Why is the adult Comet Moth unable to feed after emerging from its pupa?
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