One of the most common and abundant species throughout North America and its range south to Panama. It is well known for its great migration distance from the northern United States south into Texas and Mexico. The green darner is one of the largest dragonflies existent: males grow to 76 mm in length with a wingspan of up to 80 mm. Thorax unmarked bright green in both sexes. In mature males the abdomen has a dark purple dorsal stripe flanked by bright blue lateral stripes. When cool, the blue stripes change to purple and may become so dark as to blend in with the dorsal stripe to give a uniform purplish abdomen. Immature males, and females, have red abdomens. Mature females have rusty brown to purple abdomens. Both sexes have a large black spot, a 'bulls eye' in front of the eyes.
Found near still marshy waters from late spring to late summer.