Also found in: Thesaurus, Encyclopedia, Wikipedia.
Related to robber fly: Asilidae
Any of numerous predatory flies of the family Asilidae, characteristically having long bristly legs.
(Animals) any of the predatory dipterous flies constituting the family Asilidae, which have a strong bristly body with piercing mouthparts and which prey on other insects. Also called: bee killer or assassin fly
any of numerous, often large, dipterous insects of the family Asilidae that are predaceous on other insects.
Switch to new thesaurus
|Noun||1.||robber fly - swift predatory fly having a strong body like a bee with the proboscis hardened for sucking juices of other insects captured on the wing|
dipteran, dipteron, dipterous insect, two-winged insects - insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing