Efferia rapax

Efferia rapax is a species of robber fly in the family Asilidae, commonly known as the Yellow-haired Hammertail. Robber flies in this genus are predatory insects known for their aggressive hunting behavior, capturing other insects in flight. The species is part of a large and diverse genus of medium to large-sized robber flies distributed primarily in the New World. Specific biological details for E. rapax are limited in published literature.