Cox, J.M. 1983 An experimental study of morphological variation in mealybugs (Homoptera: Coccoidea: Pseudococcidae).. Systematic Entomology 8: 361-382.
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Notes: Examined the effects of temperature, relative humidity & host plants on the morphology of adult females; used Planococcus citri, ficus & pacificus (=minor). Also discussed the usefulness of these variables in resolving species complexes.
