wet meadow near forest July 2017, South Bohemia, Trebon region, Czech republic.
This butterfly has 2 generations per year, which looks differently. This is 2nd (summer) generation.
http://eol.org/pages/137687/overview
Pentax K50 f 6,3; 1/250 sec; ISO 800; lens zoom 3,5-5,6/18-55 mm
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From @valtr