The common name of Libellula pulchella, 12-spotted Skimmer, describes the brown/black spots, three on each wing. It is also called the 10-spotted Skimmer by counting the white spots of mature males, two on each forewing and three on each hindwing. The scientific species name means pretty.
Most dragonflies measure about four inches long (head to tail tip). The body is long, slender and usually brown or black and often with bright markings. The wings are usually transparent, held straight out from the body when at rest. The hindwing is wider at the base than the forewing.
Its preferred habitat is marshes, fields near lakes, streams and ponds.