Williams, D.J. 1962 The British Pseudococcidae (Homoptera: Coccoidea).. Bulletin of the British Museum (Natural History) Entomology 12: 1-79.

Notes: Classificatory review of 42 species in 20 genera; keys to genera and species where needed; frequent generic transfers; reports of new synonymy and reestablishment of obscure species; Balanococcus boratynskii n. gen. and n. sp.; Atrococcus cracens, Saccharicoccus penium, Trionymus orestes n. spp.

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