Skaife, S.H., Ledger, J., & Bannister, A. 1981 . Perlinger Verlag [Austria] Österreich 344 pp.

Notes: Scale insects are briefly reviewed and illustrated and several species mentioned: Aonidiella aurantii, Aspidiotus perniciosus, Ceroplastes sp., Dactylopius opuntiae, Furcaspis capensis, Icerya purchasi, Lepidosaphes beckii, Planococcus citri and Saissetia oleae.