The Macrocheles glaber species group (Acari: Macrochelidae) is a species-rich cosmopolitan assemblage of mites, sorne of which are predaceous on eggs and larvae of synanthropic flies. Seven new species are described in the giaber group s. str. from Africa and Asia, and five species complexes complexes within the glaber species group are proposed. Phoretic associations and distributions of ali known species in the complexes are given. Keys to species complexes are included.