McKenzie, H.L., & Williams, D.J. 1965 Fifth taxonomic study of North American mealybugs, with revisional notes on seven species (Homoptera: Coccoidea: Pseudococcidae).. Hilgardia 37: 1-15.

Notes: Redescribes seven species; gives taxonomic status, corrects generic assignments, and relationships with other species; notes homonym and proposes Chorizococcus halli McKenzie and Williams new name for C. indecisus (Hall).