Koteja, J., Zak-Ogaza, B., & El-Nabawi, A. 1978 Notes on Heterococcus Ferris and four mealybugs (Homoptera, Pseudococcidae) new to the Polish fauna.. Polskie Pismo Entomologiczne 48: 501-504.

Notes: Heliococcus danzigae, H. slavonicus, Coccura comari and Peliococcopsis parvicerarius.