Cilliers, C.J. 1971 Observations on circular purple scale Chrysomphalus aonidum (Linn.), and two introduced parasites in Western Transvaal citrus orchards.. Entomophaga 16: 269-284.

Notes: This species has been considered less important than Aonidiella aurantii; parasites introduced are Comperiella bifasciata and Aphytis holoxanthus.