One of three Nearctic species in the genus
Males striking, unmistakable. Females occur in two forms, with either green or copper-colored marks on thorax.
Among the states, Washington and Idaho lack records of this species. The range continues from the United States south into Mexico. In Canada, these provinces have records: Ontario, Quebec, and New Brunswick.
May-November in mid-Atlantic states, e.g. Virginia
Female oviposits in aquatic vegetation, sometimes submerging herself. Male often guards from above, but not in contact with female.