Podsiadlo, E. 1989 Morphology of the second instar nymphs of Asterodiaspis quercicola (Bouche) and Asterodiaspis variolosa (Ratz.) (Homoptera, Coccoidea, Asterolecaniidae).. Polskie Pismo Entomologiczne [Bulletin Entomologique de Pologne] 59(1): 3-8.

Notes: Summary/abstract in: Polish. Abstract: Descriptions; morphology of these forms very similar in these two species; identification on that basis impossible.