User blog:Eres - Mistress of Illusions/Help needed

So, I was looking for character emblems for RWBY, and I come across a rather nice image of all of them at once.

But, I can't help but notice that one of the emblems has no sorresponding character. (at least to my knowedge)

If anyone can find the character for this emblem, then... thanks.

It's the one between Adam's and Roman's symbols.