Definition of robber fly in English:

robber fly

Line breaks: rob¦ber fly

noun

A large, powerful predatory fly which darts out and grabs insect prey on the wing.
  • Family Asilidae: many genera
More example sentences
  • 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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Pronunciation: ˈsiːtəʊs
adjective
bearing bristles or setae; bristly