Progomphus obscurus, the common sanddragon, is a species of dragonfly in the family Gomphidae, found in eastern United States and southern Ontario.Dunkle, S.W., Dragonflies through Binoculars. Toronto:Oxford University Press, 2000.
References
External links Progomphus obscurus, BugGuide Common Sanddragon (Progomphus obscurus), North Carolina Dragonflies