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Chris, Arp certainly thought there was a possibility we have P. vulgaris here. Unfortunately the male genital bulb is not distinguishable from P. communis. The basal dark spot covering two cells could be a clue, I will have to refresh my memory but I think there is a clue depending on whether it completely covers the two cells or only partly.

I had a very unusual female which had dark markings up the edges of the wings from the bottom, I really should have a closer look sometime at the pointers and see what I come up with. Of course I know a specimen is needed for any possibles. :|


I don't know which key you have, there's a French one here which could maybe be translated if the URL is copied and pasted into a google search.