I think I saw a Stout Dart (spaelotis ravida)on a buddleia flower in my Chalfont St Peter garden today. It was about 2cm long, brownish-buff, with dark brown markings near the tips, but more orange towards the leading edges which were parallel with its body. The antennae wer very thin. By the time I had got my binoculars and camera it had moved to a leaf 8ft up, so I could only see its underside which was pale. These photos are the best I could manage before it flew off, so I will be surprised and pleased if anyone can identify it.