When it comes to viciousness, it’s hard to beat a Dragonfly. Dragonflies, such as this Common Green Darner, visually lock onto a chosen victim (even if it’s within a swarm of other insects); then, they use each of their four wings together and/or independently to out-fly their prey.
They can grab the other insect with their legs, tear off its wings to prevent distraction and further flight, and rip and chew the victim to pieces with strong jaws and serrated mandibles – all in mid-air. Glad they’re small.
(Brooklin, Maine)