Typical swarm locations
Collectors regularly attend swarms in the mature garden trees and old walls of the Market Place and Thorngate conservation area, along the Tees riverside hawthorn and scrub margins at Flatts Wood and the castle grounds, on the dales hay-meadow margins and field walls towards Lartington and Cotherstone, and in the chimney stacks and eaves of the older stone farmhouses and cottages in the Teesdale villages.