On the trunk of a maple tree.
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I think I'm right in saying that it's common name is Lacehopper. Because of it's veins resembling lace.
Excellent pictures of a beautiful creature as usuall Andy.
Have seen these before but haven't yet got a key!
The only good key is the RES Handbook (a few species get very tricky to separate using it, though), and Biedermann & Niedringhaus' book on the German fauna is excellent for UK species. We have a few species covered photographically here:
Some great pictures at Britishbugs!
Lat/Lng: 51.30957, -0.17413
OS grid ref: TQ273582