We’ve Been Robbed!

Robber Fly or Assassin Fly

This beautiful creature was hanging out on our windowsill yesterday. Was it a wasp? A flying ant? Wolfram thought it was a stone fly, but the wings, torso and legs didn’t look right.

After many searches and a short debate on insect anatomy, we made the call: robber fly.

Robber flies, a.k.a. assassin flies, are notoriously aggressive and predatory; they feed mainly or exclusively on other insects and as a rule they wait in ambush and catch their prey in flight.

They attack their prey by stabbing it, injecting it with neurotoxic saliva which paralyze the victim and digests its insides; the fly then sucks the liquefied material through the proboscis.



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