Carcinocorini are a tribe of ambush bugs which are distinct in that they have a claw-like modification of the foreleg used to capture their prey. Such claws, or chelae, which are common in crabs, are almost unknown in insects. Aside from Carcinocorini they are only present in female wasps of the family Dryinidae. The name of the tribe is derived from the Greek karkinos for crab and coris for bug.

...