C. J. Hodgson, I. M. Millar, and P. J. Gullan, “Cissococcus Cockerell (Hemiptera: Coccoidea: Coccidae), a unique gall-inducing soft scale genus on Vitaceae from South Africa, with description of a new species”, Zootaxa, vol. 2996, no. 1, pp. 1–32, Aug. 2011.