There is a new country record for CH on the website, with the following data:
♀: Schweiz, Kanton Waadt, Lonay, 17. Juni 2013, am Licht (leg.: Pierre Pury; gen. det. & fot.: Max Hächler) [Erstnachweis für die Schweiz]
However, the imagine and the genitalia does not belong to M. fenestratella! Unfortunately the picture of the imagine is very small and the close-ups of the genitalia too extreme (also the ostium is photographed from a direction in which the characteristics are not clear to see) so it is difficult for me to give an ID with a full 100% certainty: based on the cornuti this might be M. laevigella.