Thorn-tipped Dancer

This dancer used to be named Argia exranea, found from Arizona to Panama. But entomologists realized that this damselfly was actually two species—a northern and a southern one, with no overlap in range. The southern one, Argia elongata was only described in 2017! The Northern species is now called a Spine-tipped Darner. the southern one, the Thorn-tipped Darner. Argia elongata are found in Costa Rica. I took this image from the pool below the Hotel de Montaña Monteverde.