Probably our brightest darner, with broad lateral thoracic stripes of blue or green fading to yellow ventrally. The anterior stripe is nearly straight with a rearward projection at the top. Male abdominal spots are usually bright blue. Females may occur in yellow, green and blue color phases.
Cerci are flattened vertically with a posterior spike, similar to the much duller (but still pretty in its own subtle way) Shadow Darner.