Podsiadlo, E. 1972 A contribution to the explanation of the status of Asterodiaspis variolosum (Ratzeburg) (Homoptera, Coccoidea, Asterolecaniidae) on the basis of material from Poland.. Acta Zoologica Cracoviensia 17: 389-404.

Notes: [Polish and Russian summaries]. A. variolosum and A. quercicola are shown to be distinctive species fully reliable differentiation is only possible between the first instar nymphs; biology; morphology of adult female and first instar.