Ceratomyrmex.

Perrichot, Wang and Engel have described the strangest ant ever.... I saw the article today (published online yesterday, 26st). Untill now the Haidomyrmicini were very strange but the newest genus in this tribe is even more specialized, morphological and ecological.... UNBELIEVABLE!!! Here is Ceratomyrmex, the horned ant.
http://antcat.org/documents/6564/perric ... x___si.pdf
http://antcat.org/documents/6564/perric ... x___si.pdf