Lagowska, B. 1987a Analysis of groups of soft scales (Homoptera, Coccidae) on woody plants on Lublin and its surroundings.. Ekologia Polska 35: 131-144.

Notes: Scales listed include Pulvinaria betulae, Sphaerolecanium prunastri, Palaeolecanium bituberculatum, Parthenolecanium corni, P. rufulum, Eulecanium ciliatum and E. coryli; host plants; densities.