Horned clubtail

The horned clubtail (Arigomphus cornutus) is a clubtail dragonfly of Canada and the United States.

The horned clubtail is 2.2 in long and lacks an abdominal club. It has a greenish thorax with black stripes and a black abdomen with a light stripe along the top. It has blue eyes and black legs. It also has distinctive wide forked yellow claspers shaped like cow horns and a large sloped bridge between the eyes.

The horned clubtail lives in ponds and sluggish streams. Its range includes Canada and several U.S. states:
 * Colorado
 * Iowa
 * Minnesota
 * Montana – Carter, Custer, Fallon, Powder River, and Wibaux Counties; only in artificial reservoirs.
 * Nebraska – Cherry and Cuming Counties
 * New York – (rarely)
 * North Dakota
 * South Dakota
 * Wisconsin
 * Wyoming