Baeta Neves, C.M. 1947 Alguns insectos prejudiciais nos arvoredos de Sintra. [Some insects that damage trees of Sintra.]. Revista Agronomica. Lisbon 35: 128-142.

Notes: Scale species mentioned include Aspidiotus hederae, Hemiberlesia camellia, Saissetia oleae, S. hemisphaerica, Coccus hesperidum, Pulvinaria floccifera, Ceroplastes rusci, Pseudococcus adonidum, P. citri, Eriococcus araucaria, Nidularia pulvinata, Orthezia urticae and Icerya purchasi.