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BIOLOGY

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Robber flies are predators. They spend their hours waiting for a flying insect to pass by. Like dragonflies they capture insects on the wing. However, they may capture prey nearly as large as them, and so, may tumble to the ground in an attempt to subdue it. Adult robber flies are predatory on other insects and are capable of capturing them on the wing. Even large wasps and dragonflies are not free from robber fly attack. Larvae live in the soil or damp wood where they are predatory on other insect larvae.

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