Amlax bounty hunter

This alien is from a race of bounty hunters who came to National City when Queen Rhea issued a bounty on Supergirl's life for 300 Quartz Crowns. He attacked civilians in National City to draw Kara to him and then attacked but she quickly incapacitated him and he was imprisoned at the D.E.O. It was through his communicator device that the D.E.O. learned of the bounty.