They feed on other aquatic insects and creatures, including small tadpoles. Males use their paddle-like feet to secure the female for mating. Both genders fly very well out of water and are attracted to lights at night. They are most active at night and can be seen moving from one water source to another (puddles, pools, ponds, flooded roads, etc.)
Larvae hatch underwater and look somewhat like long, tubular naiads (larval dragonflies) or centipedes (minus all but 6 legs). They have what appear to be pincers at the mouth which are likely used to catch and consume aquatic insects. They are ferocious predators and aggressive by nature.