Afifi, S.A. 1968 Morphology and taxonomy of the adult males of the families Pseudococcidae and Eriococcidae (Homoptera: Coccoidea).. British Museum (Natural History), 2nd Report on Economic Zoology 13: 3-210.

Notes: Detailed study of 17 pseudococcid species in 13 genera and seven eriococcid species in four genera; keys to families downward to species; affinities of species determined and analyzed.