Look at this closely. Do you see one bee nest or two? 🐝 Can you see the old nest to the right of the bees? At some stage, another bee nest in this wall died out. It probably happened 2 or 3 years ago, maybe longer. 🐝 Even though the bees died out and the wax moth destroyed what was left of the nest, the pheromones lasted, creating a perfect swarm lure that attracted this new colony fairly recently, maybe within the last six months. 🐝 The only solution is to remove the bees and all of the nest