Confidence: I'm as sure as I can be.
Notes: There is a problem with Caloptilia hauderi in so far as it no longer regarded as a good species and instead is a form of Caloptilia semifascia, produced in an early summer generation. Life is even more comlicated as there is potentially another Caloptilia in the UK = Caloptilia jurateae. This was recently discovered in Scandinavia and might be more widespread. I'm not really sure which one your example is!