moths mating?

moths mating?

Observation - moths mating? - UK and Ireland. Description: about 2.5cm in length, on a pavement close to a stream and gardens and a park, I can't tell if it's 2 males or a pair - are they mating or fighting?

about 2.5cm in length, on a pavement close to a stream and gardens and a park, I can't tell if it's 2 males or a pair - are they mating or fighting?