Tunnel, Larval (Puriri Moth)

A section of wood split in two to reveal the larval tunnel of the Puriri moth. The outer surfaces of the wood also show the soft patches on the bark: a tough silken web woven by a larva which covers a shallow chamber that the insect has excavated in the wood surface.
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The Puriri moth is New Zealand's largest moth species. The caterpillars spend up to 7 years burrowed into trees before emerging as a large green adult. Their favourite tree species include the Puriri, putaputaweta, and lacebark. Once the adult has emerged it has no ability to eat and only lives a few days in which time it mates before it dies.
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