Macro photograph of a dragonfly in Pompano Beach, FL. Dragonflies are valuable predators that eat mosquitoes, and other small insects like flies, bees, and ants. They are some of the fastest insects in the world with documented speeds of 34 miles an hour and undocumented speeds up to 60 miles an hour.
In Europe, dragonflies have often been seen as sinister. A Romanian folk tale says that the dragonfly was once a horse possessed by the devil. Swedish folklore holds that the devil uses dragonflies to weigh people's souls. For some Native American tribes they represent swiftness and activity, and for the Navajo they symbolize pure water. Dragonflies are a common motif in Zuni pottery; stylized as a double-barred cross, they appear in Hopi rock art and on Pueblo necklaces. Photo Copyright 2005 Robert Giordano.
Descriptions from Wikipedia.