 Formicoids include such widespread and species-rich subfamilies as Myrmicinae, Formicinae and Dolichoderinae, as well as the army ants (Dorylinae).Non-formicoids comprise five "poneroid" subfamilies (Agroecomyrmecinae, Amblyoponinae, Paraponerinae, Ponerinae, and Proceratiinae), Leptanillinae, about which little is known, and Martialinae, the most recently discovered subfamily.Relationships among these remaining seven subfamilies are less well resolved.