The males can be seen dashing over heather in sunshine, looking for the females that emit a pheromone. A recent pheromone lure has proved very effective in attracting males; sometimes in large numbers.
Overwinters as a pupa, sometimes over several winters.
Recorded in 52 (37%) of 140 10k Squares. First Recorded in 1834. Last Recorded in 2019. (Data up to end 2019) Additional Stats