Lots around - they disappear when they land!
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as you say, it shows how good the camouflage is!
is the scientific name of the fish called Grayling. The butterfly is Hipparchia semele.
Haha! That serves me right for doing a quick internet search for a scientific name whilst in an internet cafe! Many thanks for the correction!
Lat/Lng: 50.6601, -2.0573
OS grid ref: SY960844