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Efferia caliente
Caliente Hammertail
Efferia caliente is a species of robber fly in the family Asilidae, described by Wilcox in 1966. The common name "Caliente Hammertail" references the Caliente Range in California, where the species was presumably first collected or is known to occur. Robber flies in the genus Efferia are predatory insects known for their robust build and predatory habits. As with other Asilidae, adults are aerial predators that capture other insects in flight.