I think the purple (violet) color indicates it is Argia fumipennis male . teddie

Purple does indicate a male generally in the species, however, they bottom half of this damselfly's eyes are green, a fair indicator of a female forktail. Additionally, it is my impression that dancers generally hold their wings higher up and are thinner. A more clear field mark would be that Argia fimmipennis has a blue tinted abdomen tip. This is probably a comparatively old specimen as females gain pruinosity with age, covering up the orange coloration they show with youth. I now am uncertain that this is an Eastern Forktail, but perhaps a related species, likely the Fragil Forktail. See these pictures for comparison: