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The second image (the female) is from July, 2009, Hungary.

I like these one thread for multiple species of genera threads, because they allow better comparison. For example it is now clear for me what yellow base of wings mean. On the pics even solstitialis seems to have yellow wing base, caused by the reflection from the ligth calypters. But the wing veins are clearly dark in solstitialis and yellow in the male.

But if most of you do not like it, I can post only one animal per thread.