robber fly
insect
Also known as: Asilidae, assassin fly
robber fly, (family Asilidae), any of about 6,750 species of predatory insects, worldwide in distribution, in the fly order, Diptera. Robber flies range in length to almost 8 cm (3 inches), making them the largest of all flies. Most are dull in colour, and their stout, often hairy, bodies resemble those of bumble bees. Between the large-faceted eyes is a moustache of bristles. The long legs are adapted to capture prey in flight and to...
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