Predatory bugs are a group of insects in the Order Hemiptera. They use piercing-sucking mouthparts to kill and eat their prey (other insects).
Types of predatory bugs
Wheel Bug (type of assassin bug). Photo: Johnny N. Dell, Bugwood.org
Ambush Bug. Photo: David Cappaert, Bugwood.org
Predatory Stink Bug. Photo: Hanna Royals, Museum Collections: Heteroptera, USDA APHIS PPQ, Bugwood.org