Typical swarm locations
Collectors regularly attend swarms in the walled gardens and lime trees of the Royal York Crescent and Cornwallis conservation areas, on the limestone grassland and scrub of the Avon Gorge at Sea Walls and Clifton Down, along the Avon riverside willows and watermeadow margins at the Portway, and in the chimney stacks and eaves of the older Georgian and early-Victorian terrace properties.