Lesula

The Lesula, Cercopithecus lomamiensis, is a monkey only scientifically discovered in 2007!  It occurs only in a small region around the Lomami river, a tributary of the great Congo.  These monkeys are most similar to the Hamlyn's or Owl-Faced Guenon, but different enough to constitute a new species.  There aren't many online photos available of it, I did my best!  Acrylic.