petiole shape
petiolar node subquadrate
petiolar node subquadrate
The petiolar node relatively quadrate and subpetiolar process broad in profile with a blunt anterior angle and an acute posterior angle. Used in Antkey to separate Gnamptogenys triangularis from Gnamptogenys porcata.
petiole lacking posterior face
petiole lacking posterior face
The petiole is broadly attached to gaster and lacks a posterior face. Used in Antkey to separate Amblyoponinae from all other subfamilies.
petiolar node tall and narrow
petiolar node tall and narrow
The petiolar node tall and narrow and the subpetiolar process narrow with a blunt posterior angle and lacking a distinct anterior angle. Used in Antkey to separate Gnamptogenys porcata from Gnamptogenys triangularis.
petiole with posterior face
petiole with posterior face
The petiole is attached to the gaster by a narrow attenuation and always has a conspicuous posterior face. Used in Antkey to separate all other subfamilies from Amblyoponinae.
petiole apendunculate
petiole apendunculate
The petiole is apedunculate and approximately as tall and it is long in profile view. The posterior face is weakly but distinctly concave. Used in Antkey to separate Platythyrea parallela from other ponerine species.
petiole taller than long
petiole taller than long
The petiole is distinctly taller than long in profile, and the posterior face is flat to convex, but never concave. Used in Antkey to separate other ponerine species from Platythyrea parallela.
petiolar node reduced or absent
petiolar node reduced or absent
The petiolar node greatly reduced or absent, the anterior face absent or at most indistinct. Used in Antkey to separate Brachymyrmex, Tapinoma and Technomyrmex from various other genera in Dolichoderinae and Formicinae.
petiolar node present
petiolar node present
The petiolar node present and with distinct anterior and posterior faces. Used in Antkey to separate various genera in Dolichoderinae and Formicinae from Brachymyrmex, Tapinoma and Technomyrmex.
peduncle realtively long
peduncle realtively long
peduncle long and does not taper gradually into node (Cardiocondyla)
peduncle relatively short
peduncle relatively short
peduncle not appearing long (length not twice height) but thickens gradually as it tapers into node (Cardiocondyla)