Loch, A.D., & Zalucki, M.P. 1996 Spatial distribution of pink wax scale, Ceroplastes rubens Maskell (Hemiptera: Coccidae), on umbrella trees in south-eastern Queensland: the pattern of outbreaks.. Australian Journal of Zoology. Melbourne 44: 599-609.

Notes: This scale is common on Schefflera actinophylla; highly aggregated distribution pattern found; scale infestation more prevalent in roadside positions and in exposed situations.