How does the diet of the adult Christmas beetle differ from its larval stage?

Answer

Adults shift their focus entirely to chewing foliage (leaves).

There is a complete dietary transition between the life stages of the Christmas beetle. While the larvae are underground root feeders, consuming fine plant roots, the adults undergo a complete shift in focus once they emerge. The winged adults direct their feeding activity toward above-ground plant material, specifically chewing on the foliage, most commonly those belonging to eucalypts. This results in two distinct types of damage: the subterranean root severing by the grub and the aesthetic defoliation caused by the adults chewing leaves.

How does the diet of the adult Christmas beetle differ from its larval stage?
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