
The larva, or maggot, is the main feeding stage of the fly. On hatching, first-instar larvae are roughly 2 mm long, growing to about 5 mm before shedding their skin. The second instar larvae grow to around 10 mm before they shed their skins to become third-instar larvae. Third-instar larvae grow to between 15 mm and 20 mm before wandering off as pre-pupae.
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Fri 27 Jan 2006, 10:55,
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