Joel,
I can see what you are saying. My Clarke is buried somewhere(besides I'm at work) since we just moved. What is throwing me off is the coloration, since the species you mentioned is either dark red to almost black in the pics I have seen. Obviously if Rob's plant is not in bright light, that could explain that.
I know N. eustachya does not have wings like that, which is why I was pondering if it was a new form. BTW, I am not trying to hotly defend my guess, just trying to carry on the debate. I like this kind of discussion.
Regards,
Joe