Character;Temnothorax;Nesomyrmex;Tetramorium "Sting with apical or apicodorsal lamelliform appendage";no;no;yes "Maxillary palp segments";5;5;"3 or 4" "Lateral clypeal lobes raised into a narrow ridge or shield-wall in front of antennal insertions";no;no;yes "Median clypeal lobe in the form of an apron that fits tightly over the base of the mandibular dorsum in profile";no;yes;no "Number of mandibular teeth";5;5;"6 to 7"