Dodd, A.P. 1927 The biological control of prickly pear in Australia.. Bulletin (Council for Scientific and Industrial Research, Commonwealth of Australia) No. 34: 44 pp. + 9 pl.

Notes: Scale species discussed include Diaspis echinocacti, Dactylopius coccus, D. confusus, D. indicus, D. newsteadi and D. tomentosus.