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I don’t have Schumann, if you could share a PDF, please send a pm.
The species called sepulcralis by Schumann is called floralis by most modern authors. I don’t know why, check Rognes, but it is a technical matter.
As for the other species, I have no experience with them, somI hold my ground “ I would not dare to make the call”. But separating females based on the presence or absence of a tiny prae IA seems an unwise thing to do to me, unless you really know what you are doing. As said, I don’t :)