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  • Monarch butterfly Pre-pupa silk mat - larva’s 5th + final moult.
    Rights: Jacqui Knight Published 18 August 2017 Size: 75 KB Referencing Hub media

    The larva’s 5th and final moult comes when it weighs about 1.5 g and is about 55 mm long. The larva finds a sheltered site and produces a tightly woven silk mat. It hooks its rear prolegs into the silk and hangs downwards.

    Image: Jacqui Knight

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