That is an interesting little beastie, Dave.
I'm not sure about the ID as it doesn't easily fall into any of the ID Keys. Chrysopa pallens should have a distinctive black dot between the antennae, but I can't see anything there in the close up image.
Alternatively, it would seem to be from amongst the Chrysopa carnea group. But I think this would be one for the real experts to sort out.
It is certainly a clear photo with plenty of fine details visible.