Tang, F.T. 2000a [Studies on cochineal scales Porphyrophora (Homoptera: Coccoidea, Margarodidae).]. Wuyi Science Journal 16: 7-13.

Notes: The three species found in China are Porphyrophora polonica on the roots of Caragana and Agropyron spp., P. ussuriensis on roots of Cleistogene sp. and P. sophorae on roots of Sophora sp., Glycyrrhiza uralensis, Hedysarum scoparium and Sophora sp.