Qin, T.K., & Gullan, P.J. 1995 A cladistic analysis of wax scales.. Systematic Entomology 20: 289-308.

Notes: The analysis of all genera previously believed to be separate, i.e., Ceroplastes, Ceroplastidia, Cerostegia, Gascardia, Paracerostegia, and Waxiella are all considered to belong in the genus Ceroplastes.