Harpagoxenus
Harpagoxenus is a genus of ants in the subfamily Myrmicinae. Found in the Palaearctic and Nearctic ecozones of the world, Harpagoxenus was first established as Tomognathus by Mayr to house the species Myrmica sublaevis. However, the name had already been used for a genus of fish, and was replaced with its current name by Forel.