Williams, D.J. 1958b The mealybugs (Pseudococcidae-Homoptera) described by W.J. Hall, F. Laing and A. H. Strickland from the Ethiopian region.. Bulletin of the British Museum (Natural History) Entomology 7: 1-37.

Notes: Discusses 23 species with 15 redescriptions, new generic assignments where considered necessary (3), 4 transfers into synonymy, and 4 mentions with reference to other treatment.