Williams, D.J., & Boer, J.A. de 1973 The taxonomy of some New Zealand Pseudococcidae (Homoptera: Coccoidea).. Transactions of the Royal Entomological Society of London 125: 227-252.

Notes: Paraferrisia and Sarococcus n. gen.; Trionymus wisei n. sp.; eight pseudococcids redescribed and illustrated; n. comb.; n. syns.; hosts and distribution.