Liotta, G. 1983 [The role of Aphelinidae in natural control of the chaff scale, Parlatoria pergandii Comstock in Sicily.] Ruolo degli Afelinidi nel controllo naturale di Parlatoria pergandii Comstock (Hom., Diaspididae) in Sicilia.. Redia 66: 553-561.

Notes: Aphytis hispanicus, Encarsia citrina and E. inquirenda are parasites of P. pergandii in Sicily, with E. citrina the dominant species. A. hispanicus appears to be more active in the summer.