petiolar node
petiolar node excised medially

dorsal surface of petiolar node excised medially to form two lateral teeth
peduncle realtively long

peduncle long and does not taper gradually into node (Cardiocondyla)
peduncle relatively short

peduncle not appearing long (length not twice height) but thickens gradually as it tapers into node (Cardiocondyla)
petiolar node with apical spine

petiolar node armed with single apical spine
petiolar node quadrate

petiolar node relatively quadrate and subpetiolar process broad in profile with a blunt anterior angle and an acute posterior angle
petiolar node tall and narrow

petiolar node tall and narrow and the subpetiolar process narrow with a blunt posterior angle and lacking a distinct anterior angle (Gnamptogenys)
petiole flattened

petiole flattened and lacking a distinct node
petiole with upright node

petiole with a distinct and upright node
propodeum and petiolar with teeth

propodeum and petiolar node armed with pairs of short teeth
propodeum and petiole lacking teeth

propodeum and petiolar node lacking pairs of short teeth