de Villiers, J.F. 1998 Citrus mussel scale: Lepidosaphes beckii (Newman) [=Cornuaspis beckii (Newman)].. Citrus pests in the Republic of South Africa. Institute for Tropical and Subtropical Crops Nelspruit 288 pp.
Notes: Historical review, economic importance, distribution, host plants, life history, seasonal history, feeding habits, biological, chemical and integrated control.