EN
Egg, first and last instar larvae and pupa of Cyrtonota lateralis (Linnaeus, 1758), a member of the tribe Mesomphalini Chapuis, 1875 (= Stolaini Hincks, 1952), have been described and figured in detail for the first time. Immatures were figured using light microscope, for the first instar larva also SEM photos were prepared.