Monitoring device to detect the presence of food moths (Plodia interpunctella, Ephestia kuehniella, Ephestia elutella, Cadra cautella and Cadra figulilella), pre-activated with specific pheromone. The trap consists of: – stretched and plastic-coated cardboard backing; white backside background and printed on the glued side with grid and image of the pest (in green); – transparent hot-melt adhesive; – specific sexual pheromone for food moths (transparent) on the glued surface; – white silicone paper printed in one black colour, with release instructions; – Crtc-alu-pe triple laminated packaging; – Cardboard box.