Lamellipodia-based migrations of larval epithelial cells are required for normal closure of the adult epidermis of Drosophila

► The larval epithelial cells (LECs) undergo extensive coordinated migrations. ► These migrations follow a transition from a stationary to a migratory mode. ► Directed apical lamellipodia-like protrusions propel the cells. ► LEC migration is regulated by Dpp signalling, planar cell polarity and Rho1. ► LEC migration contributes to the morphogenesis of the adult abdominal epidermis.