A large, powerful predatory fly which darts out and grabs insect prey on the wing.
- Family Asilidae: many genera
- The nerve toxins immobilize the hapless insect, while the digestive enzymes turn its innards to mush, which the robber fly consumes.
- Grasshoppers here and in other grasslands are readily eaten by both vertebrate and arthropod predators (including robber flies and especially spiders).
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