Robber /(?)/

Rob·ber

Robber

n.
  1. One who robs; in law, one who feloniously takes goods or money from the person of another by violence or by putting him in fear.
    Some roving robber calling to his fellows.

Phrases & Compounds
Robber crab
A purse crab
Robber fly
Same as Hornet fly, under Hornet.
Robber gull
a jager gull.