Among the ground beetles (Coleoptera: Carabidae) there is a rather unique subfamily known as the tiger beetles (Cicindelinae). These insects are identified in part by their narrow thoraxes, wide-set eyes, and large mandibles. Most are predators of other arthropods. Generally adults are active hunters, and larvae dig holes where they sit in ambush with their jaws agape waiting for prey.
Last month I found this six-spotted tiger beetle (Coleoptera: Carabidae: Cicindela sexguttata) at Congaree National Park in South Carolina. In spite of the common name these iridescent green insects can feature anywhere from zero to eight light spots on their elytra (hard wing covers). In the eastern United States this is possibly the most commonly-encountered species of tiger beetle.