Carvalho, P.J., Franco, J.C., Aguiar, A.M.F., & Soares, A.O. 1996 Insect pests of citrus in Portugal.. Proceedings of the International Society of Citriculture I: 613-618.

Notes: [VIII International Citrus Congress, 12-17 May 1996, Sun City, South Africa.] List of citrus insects includes 33 species of scale from Margarodidae, Ortheziidae, Pseudococcidae, Coccidae and Diaspididae; pest status and origin provided.