Moth id please

Moth id please

Observation - Moth id please - UK and Ireland. Description: 1st photo in shade, 2nd is highlighted. Wingspan about 2.3cm. This seems as if it should be easy to id, but I can;t find it in my books....

1st photo in shade, 2nd is highlighted. Wingspan about 2.3cm.
This seems as if it should be easy to id, but I can;t find it in my books....