It's easy to be fascinated by dragonflies. They were among the very first winged insects to evolve over 300 million years ago! Dragonflies belong to the order Odonata, characterized by large multifaceted eyes, two pairs of strong, transparent wings, and an elongated body.
The word Dragonfly and the family it belongs to, Odonata, have evolved from the many myths associated with Dragonflies and their taxonomic cousins, the Damselflies. The word Dragonfly has its source in the myth that Dragonflies were once Dragons. - See more at: http://www.dragonfly-site.com/meaning-symbolize.html#sthash.DEXsh2sw.dpuf