This little micro conveniently appeared on one of the windows likely from work on adjacent garden were there has been a lot of dried Willowherb knocking about
Mompha spp for sure and a possibility of one confusion species - the distinct 4 spots near the base of the wings would point me Mompha subbistrigella as opposed toMompha sturnipennella . Size circa 5 - 7 mm very flighty towards light. Not particularly good imaging given the challenge pictured on window glass.