Milichiidae

Milichiidae
Adult of a Paramyia species
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Section: Schizophora
Subsection: Acalyptratae
Superfamily: Carnoidea
Family: Milichiidae
Schiner, 1862
Subfamilies

Madizinae
Milichiinae
Phyllomyzinae

Milichiidae are a family of flies. Most species are very small and dark. Details of their biology have not yet been properly studied, but they are best known as kleptoparasites of predatory invertebrates, and accordingly are commonly known as freeloader flies or jackal flies. However, because of the conditions under which many species breed out, they also are known as filth flies.