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Hi, treebreard :) As far as I know both specimens only can be Hemipenthes maurus ;) The extention of the dark areas on the wing can be rather variable (anything to do with both sexs? I don't know about that, but it happens in the specimens I see here in Spain). But the existence of transparent windows on the dark areas of the wing leaves no chance for another similar species. Besides those similar species are absent in your area.

Hope this helps :)