This common dragonfly is causing confusion. It is officially named the 12-Spotted Skimmer Dragonfly, due to the total number of brown spots on the wings of each member of the species.
Many people prefer to count white spots on wings, however, and they call the insect a 10-spotted skimmer. Those in this 10-spot crowd apparently have not yet discovered that only adult males of this species have white wing spots, hence they have no name for the females and young. Compare the flying female above with the resting adult male below.