The green-brindled crescent
One of the moths you can see in autumn till it gets too cold is the green-brindled crescent (Allophyes oxyacanthae). It has a very characteristic copper-green, sometimes dark green shade at its brown wings.
Sugaring for moths
In the winter period the chance that you see a butterfly is very small. But those are exceptions. Moths can be seen throughout the year. Even in winter? Yes, even in winter.