Quite likely Ardices canescens or related species. I have found shots that show the pink under the 'chin' but A. glatignyi appears to have this too. I think A. glatignyi has more markings on the underside of the abdomen. If possible, it would help if you could sneak around and get a shot from above/outside too. To do this you may need to shine a light on the moth for the camera to focus.