American Rubyspot

The American rubyspot (Hetaerina americana) is a damselfly of the family Calopterygidae.

Males have a lustrous red head and thorax and a large red spot at the base of each wing. The abdomen of both genders is brilliant green.

The female may have either green or copper colored marks on the thorax and possess faint amber wing spots with patterned bodies that vary from brown to green. The species has served as a widely used model system in studies of sexual selection, territorial behavior, and population genetics.