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Hello, Valery.

It was you, who identified the first Riveilla I photographed. http://www.dipter...ost_162932

And it was you, who I linked the article that shows the differences in their gender. https://sites.goo...edirects=0



And as the photos of wings which are published in this article, the difference between sexes Riveilla, not in his the preapical band. Is in the spots on their wings.

This difference, I have seen in the pictures that I could make the Riveilla in intercourse, of which I enclose two examples. I believe the male is always above the female. No?.





Also, I thought to appreciate, than males (the one above), smaller than the largest female (below)

I think the photos of Manuel Lopez, corresponding to two different copies. The first picture is the female. The second picture is the male

Am I wrong in something, or my estimates are correct.?

I clarify once again, I'm not a specialist, nor do I have entomological training. I'm just an amateur photographer.

Best regards.