The medium-sized, dark brown striped emeralds have some pale markings on the thorax and abdomen, black legs, clear wings and brilliant green eyes. The thorax has a metallic bronze-green sheen and the abdomen is dark metallic black-green. Most species are uncommonly seen, but this may be largely due to their secretive nature. When flying, most species look alike which is why in-hand identifications of their anatomical features are often needed.
This dark dragonfly has prominent yellow stripes on the sides of the thorax and a slender abdomen. The body length varies from 2.0 to 2.4 inches.
It is usually found at slow to moderate streams, beaver ponds, and lake inlets/outlets. It is found throughout northeastern United States, including Appalachian Mountains. In Wisconsin, it is found infrequently in northern counties.
In Wisconsin, the typical flight season is from early June to late August.