WIng Diagram, Halequin Darner
Differences with Taper-tailed Darner are highlighted. Arrows indicate bridge crossveins. Taper-tailed usually has only 1 in each wing, Harlequin two or more. Shaded cells are in the region where Harlequin has 8-10 vertical rows of double cells but Taper-tailed usually has only 3 or less. Diagram modified from Needham, Westfall and May 2014.