Erythrodiplax is a large Neotropical genus of dragonflies in the family Libellulidae. These small to medium-sized skimmers are commonly known as Dragonlets. However, this species apparently has no English name. I therefore propose "Attenuated Dragonlet" as an appropriate English name. This is a male with black wing spots. Thanks to Paul Donahue for the identification. Canon PowerShot SX60 HS.