Podsiadlo, E. 2000 Morphology of the second instar larva of Quadraspidiotus zonatus (Hemiptera: Coccinea: Diaspididae).. Polskie Pismo Entomologiczne 69: 397-404.

Notes: Second instar larvae of Q. zonatus (Frauenfeld) are collected from Quercus robur, described and illustrated. Sexual differences are discussed.