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I believe this to be Cicadetta argentata .
I expect cicadas to be up in the trees, singing, after dark on a warm evening. This one, of several heard, was on low vegetation (where they rest when freshly-emerged) in hot sunshine. It made a shrill sound, which it did not stop at my approach, and was easy to locate. It was 1cm or so long.
Olympus E-P2, Leitz Elmarit 60mm macro, probably f8, 1/80 ISO 100 hand-held.
Slightly cropped for composition.