Mealybugs from Zanzibar and Pemba islands with a discussion of a potential invasive species (Hemiptera, Pseudococcidae).

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Identification of mealybugs of the genus Planococcus (Homoptera: Pseudococcidae) occurring on cacao throughout the world.

Cox, J. M., Freeston, A. C., (1985). Journal of Natural History 19(4), 719-728. English language