Brookes, H.M., & Hudson, N.M. 1968 The identification and distribution of Quadraspidiotus species (Homoptera: Diaspididae) on pome and stone fruits in Australia.. Journal of the Australian Entomological Society 7: 90-100.

Notes: Lists Q. perniciosus, lenticularis, ostreaeformis and pyri; keys to second-instar nymphs and adult females; descriptions and figures of both stages; distribution.