Robber flies are predators. They spend their hours perched, waiting for flying insects to pass by, which they assail on the wing. Robber Flies take aerial predation to the next level and may tackle prey larger than themselves, tumbling to the ground while trying to subdue it. Larvae are predaceous on soft-bodied insects in the soil, and damp or decaying wood, where they live. Legs are relatively long and large and are sometimes covered with long bristly hairs.
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