During the present work, samples of different host plants heavily infested by red scale insect Aonidiella aurantii (Maskell) (Homoptera: Diaspididae) and associated with the parasitoid species at different locations in Egypt during 2004-2008 were collected. Preservation, isolation and identification of the parasitoids were conducted The results indicated that, thirteen species were recorded in Egypt. This work also includes red scale parasitoids survey in Baharia Oasis. Key to the parasitoids of A. aurantii and key to the genus Comperiella (Hymenoptera: Encyrtidae) from Egypt are included.