Lupo, V. 1953 Revisione delle cocciniglie Italiane VII. (Gen. Pseudaonidia, Chrysomphalus, Aspidiotus).. Bollettino del R. Istituto Superior Agraria Laboratorio de Entomologia Agraria, "Filippo Silvestri" 12: 16-44.

Notes: Detailed descriptions or P. paeoniae, C. aonidum, C. dictyospermi, A. degeneratus; revised key for Italian Aspidiotus.