Slender spreadwing (Lestes rectangularis) is one of the most common and one of the most easily recognized damselflies in Minnesota. It occurs in the United States from the East Coast to the Great Plains and in adjacent Canadian provinces. It is found in partially shaded areas in marshes, ponds, lakes, and still backwaters of slow streams.
Adults are about 1½″ to 2″ long. The male thorax is dark brown with yellow sides and wide blue or gray shoulder stripes. The abdomen is dark brown above, yellow on the sides, and extremely long, about twice as long as the wings. The wings are clear with a dark spot near the tip and a pale vein around the tip. The female is similar but has light brown shoulder stripes on the thorax and a shorter and stockier abdomen.