This species was once called the Ten-spotted Skimmer, because the four spots on the wings (right next to the thorax) were counted as two spots, each going across the thorax. They can be found in ponds, lakes and sometimes bogs or slow-moving streams throughout the lower 48. In addition to the 12 spots on their wings, mature males also have eight white wing spots.
Photo by Glenn Marangelo on 7/6/20 in Missoula, MT.