A dragonfly is a type of insect belonging to the order Odonata,
the suborder Epiprocta or, in the strict sense,the infraorder Anisoptera.
It is characterized by large multifaceted eyes,
two pairs of strong transparent wings, and an elongated body.
Dragonflies are similar to damselflies,
but the adults can be differentiated by the fact
that the wings of most dragonflies are held away from,
and perpendicular to, the body when at rest.
Dragonflies are also the fastest flying insect.
Dragonflies are valuable predators that eat mosquitoes,
and other small insects like flies, bees, ants, and butterflies.
They are usually found around lakes, ponds,
streams and wetlands because their larvae,
known as "nymphs", are aquatic.
Nymphs can deliver a painful bite when threatened.