Typical swarm locations
Collectors attend swarms on the Taff Gorge woodland edge and its elder and bramble fringe below Castell Coch, along the River Taff path between Tongwynlais and Radyr and its alder and willow corridor, on the garden walls and stone eaves of the older cottages along Iron Bridge Road, in the moorland bracken and bramble scrub on the Caerphilly Mountain approaches, and in the flowering hedgerows of the village lanes.