Tsalev, M. 1964a New scale insects established on plants in greenhouses.. Zashchita Rastenii. Leningrad 12: 16-20.

Notes: Hemiberlesia rapax, H. lataniae, Abgrallaspis cyanophylli, Gymnaspis aechmeae, and Pinnaspis aspidistrae new for Bulgaria; descriptive notes; hosts. Summary also in Russian; Diaspis boisduvalii, D. bromeliae, Chrysomphalus dictyospermi, Parlatoria proteus and P. pergandii new for Bulgaria; descriptive notes; hosts.