Aleochara is an unusual genus in the beetle family Staphylinidae, the Rove beetles; larvae of Staphylinidae occur in many assorted ecological roles, most being scavengers, predators or carrion feeders, but the larvae of at least those species of Aleochara whose life histories are known, are parasitoids; they feed in the puparia of suitable species of flies, killing the host in the process. Adult Aleochara are predators. Species include: