Tiger-beetle-predator
Guides
Efferia albibarbis
Sand Hammertail
Efferia albibarbis is a species of robber fly in the family Asilidae, known as the Sand Hammertail. It belongs to the albibarbis-complex within the genus Efferia and is found in the Grand Canyon region of the southwestern United States. The species has been documented as a predator of tiger beetles, specifically Cicindela hirticollis and Habroscelimorpha dorsalis dorsalis.