Typical swarm locations
Collectors regularly attend swarms on the wildflower grassland and birch scrub margins of the Beamish and Quaking Houses colliery restoration sites, along the Derwent riverside willows and hawthorn hedges towards Consett and Medomsley, in the garden trees and allotment eaves of the older terraces around Front Street, and in the chimney stacks and roof voids of the many early twentieth-century colliery-housing streets.