What are the dark Nepenthes?
 

http://cdn-write.demandstudios.com/u...0/1/363061.jpg

The picture is apparently from 2008, but I can't find any more information on it, even with a reverse image search.

I really want to know what the Nepenthes with the dark-coloured pitchers are. The pitcher structure looks familiar, but the coloration is nothing like what I've seen on anything like that.