von Ihering, R., & Cockayne, A.H. 1909b The pests and diseases of New Zealand phormium (Progress report).. Report (New Zealand Department of Agriculture) 17: 286-289.

Notes: Scale insects species mentioned include Mytilaspis cordylinidis, Poliaspis media, Fiorinia stricta, Dactylopius calceolariae and Coelostoma wairoense.