Please ID this skating fly (male had white wingtips)

Please ID this skating fly (male had white wingtips)

Observation - Please ID this skating fly (male had white wingtips) - UK and Ireland. Description: I'm guessing this was the female, and there were males with white tips who kept flitting around the female, flicking its wings at them while pond-skating or sitting on a leaf

I'm guessing this was the female, and there were males with white tips who kept flitting around the female, flicking its wings at them while pond-skating or sitting on a leaf