This damselfly is metallic green. The male develops a blue pruinescence on segments 1, 2, 9 and 10 as it matures. The female is thicker bodied than the male with no blue pruinescence. The ovipositor just reaches the tip of segment 10. The Emerald Damselfly rests with its wings spread at about 45° to the body. The elongated pterostigma is dark brown to black.