Gullan, P.J., & Vranjic, J.A. 1991 The taxonomy of the gum tree scales Eriococcus confusus Maskell and E. coriaceus Maskell (Hemiptera: Coccoidea: Eriococcidae).. General and Applied Entomology 23: 21-40.

Notes: Abstract: Common pests of urban plantings of Eucalyptus in southeastern Australia; these two species can be difficult to distinguish due to variability of adult females; redescriptions; key to adult females of 12 species of Australian Eriococcus.