Bertels M., A. 1956 . Entomologia Agrícola Sul -- Brasileira. Série Didáctica, No. 16. Ministerio da Agricultura, Serviço de Informaçao Agrícola Rio de Janeiro 458 pp.

Notes: Species reviewed include Eurhizococcus brasiliensis, Icerya purchasi, I. schrottkyi, Orthezia insignis, O. praelonga, Pseudococcus citri, P. comstocki, P. brevipes, Coccus hesperidum, C. viridis, Saissetia oleae, Ceroplastes floridensis, C. grandis, C. sinensis, C. janeirensis, Mesolecanium deltae, Pulvinaria flavescens, P. ficus, Pseudaulacaspis pentagona, Pinnaspis aspidistrae, Chionaspis citri, Mytilococcus beckii, M. ulmi, Quadraspidiotus perniciosus, Chrysomphalus aonidum, C. dictyospermi and C. paulistus; common names; hosts; brief descriptions; biology; natural enemies.