These dragonflies were photographed at a local arboretum in Baton Rouge. Every once in a while I can get one that seems to enjoy posing for the camera, allowing me to get fairly close. But most of the time, they are extremely skittish. If you spot them flying around, pick a dead stalk or something metal to stand near and be very still (with your tripod). Eventually, they'll probably come around to light, but it takes an inordinate amount of patience--something I lack in all other areas of my life--except photography. :)
Approximately 5680 different dragonfly species belong to the order Odonata. They are beneficial for eating mosquitoes, flies, bees, ants, and wasps; very rarely, butterflies. In turn, they can be eaten by frogs, birds, lizards, and spiders. Dragonflies hang out by rivers, ponds and marshes, so if you find yourself near a water source, they are probably around somewhere.