Eristalis is a large genus of hoverflies, family Syrphidae, in the order Diptera. Several species are known as drone flies because they bear a resemblance to honeybee drones.

Conops is a genus of flies from the family Conopidae. The larvae of Conops are parasitic on bees, especially bumblebees. Adults feed on nectar.

Conops is a subgenus of flies from the genus Conops in the family Conopidae.

Myopa is a genus of flies from the family Conopidae.

Physocephala is a genus of flies from the family Conopidae.

Zodion is a large genus of flies from the family Conopidae.

Conopinae is a subfamily of flies from the family Conopidae.

Dioctria is a genus of robber fly classified in the subfamily Dasypogoninae in the family Asilidae. Together with the genus Bohartia, Dicolonus, Echthodopa, Eudioctria and Metadioctria it forms the tribe Dioctriini.