| abstract | Twelve genera and thirty-three species of the family Tetranychidae are collected from Egypt. Of these, a new genus and twelve new species are described. These are Septobia g.n., Bryobia meyerus sp.n., Septobia bakeri sp.n., S.aegyptiacus sp.n., Petrobia (Mesotetranychus) lycopersici sp.n., Langella summersi sp.n., Aponychus solimani sp.n., Eotetranychus zaheri sp.n., Schizotetranychus tuttleii sp.n., Tetranychus (Tetranychus) attiahi sp.n., T. (Armenychus) ehari sp.n., Oligonychus (Reckiella) sayedi sp.n. and O. (Reckiella) krantzi sp.n. Four species are recorded for the first time: Tetranychina marsai (Manson), Oligonychus (Oligonychus) punicae (Hirst), O. (Reckiella) afrasiaticus (McGregor) and O. (Reckiella) pratensis (Banks). A female of unknown species of the genus Schizotetranychus is also described and keys to the genera and species are given. |