BioStor
 | The mealy bugs (Pseudococcidae: Homoptera) described by [W. M. Maskell, R. Newstead, T. D. A. Cockerell, and E. E. Green] from the Ethiopian Region D J Williams (1958) Bull Brit Mus [Nat Hist] Ent 6: 203-236 |
 | The Pseudococcidae (Coccoidea: Homoptera) of the Solomon Islands D J Williams (1960) Bulletin of the British Museum (Natural History), Entomology 8: 387-430 |
 | Observations on African mealy bugs (Hemiptera: Coccoidea) G De Lotto (1964) Bulletin of the British Museum (Natural History), Entomology 14: 343-397 |
 | Observations on African mealy bugs (Hemiptera: Coccoidea) G De Lotto (1964) Bulletin of The British Museum (Natural History) Entomology 14(8): 341-397 |