Scientific name "Cyclyrius webbianus".
A small blue butterfly endemic to the canary islands.
Endemic means it's only found here, nowhere else in the world...
So there is no german name for this cute little creature.
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Canon D60, Soligor 1:3.5/100mm Macro, free hand (no tripod)
ISO-200, Tv, 1/160 Sek., f/7.1