Longhorn moths' dances curtailed by breezy weather

 Over the last couple of weeks I've seen a lot of these male yellow-barred longhorn moths, which have extraordinarily long antennae. They are at their most fascinating when the males congregate and perform aerial dances to impress females, rising and falling in the air, as if attached to invisible bungee cords. 

This one was resting on a bramble leaf in Backstone Bank wood, in the Tunstall valley in Weardale, where I suspect the breeze blowing through the trees prevented it from dancing. Those long antennae make the insects aerodynamically unstable on windy days, but do allow them to detect the scent of females, which have shorter antennae, from a long distance.