Miller, D.R., & Denno, R.F. 1977 A new genus and species of mealybug with a consideration of morphological convergence in three arboreal species (Homoptera: Pseudococcidae).. Systematic Entomology 2: 111-157.

Notes: Plotococcus n. gen.; P. eugeniae n. sp.; Leptococcus metroxyli and Macrocepicoccus loranthi redescribed; descriptions cover all stages of males and females of the three species; morphological comparison of these species presented in two tables.