Vermillion Saddlebags (Tramea abdominalis) is a common species on the island of Curacao (and maybe the most common Tramea). Regarding pattern, it is intermediate between T. onusta (thorax unmarked, last segments with reduced black) and T. calverti (less distinct and sharp bordered maculate patches in the hindwing). In these repects, T. abdominalis look a bit alike T. insularis, from the West Indies. Dennis Paulson from the U.S. commented: ".. but T. insularis has a darker frons, purple on top, and much longer cerci. The latter is an easy way to distinguish males. Females are more similar, but T. insularis has a touch of purple on the frons lacking in T. abdominalis." The Saddlebag dragonflies have a diagnostic habit in flying with the abdomen held downwards, hanging. The obvious maculated patches in the wing (from which they get their names) are accentuated when doing so.
On Curacao, T. abdominalis are found virtually everywhere as they are abundant all over the island. Very often, they fly in mixed flocks with T. onusta and T. calverti, making exact estimations difficult, but March 2009 several locations held 100's of Tramea's. This species was seen daily. For locations, see T. onusta.

Vermillion Saddlebag (Tramea abdominalis). Muizenberg - Curacao, March 2009. Copula.

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