ABSTRACT
Mite predators on the house fly eggs were collected from manure in two slaughterhouses in Cairo and Giza for two successive years. Macrochelidae, Parasitidae and Uropodidae were generally collected in that order of abundance. Macrochelidae was represented by three species: M. mascae domesticae [Scopoli], M. merdarius [Berlese] and Glyptholaspis confusa [Foa] Parasitidae and Uropodidae were represented by P. consanguineus [Oudemans and Voigts] and U. [Fuscuropoda] marginata [C.L.Koch], respectively. The macrochelid and parasitid species generally attained their highest populations in winter and/or spring from December to May. However, the highest populations of the uropodid species were reached mainly in late spring, summer and autumn from May to October