petiole
subpetiolar process with fenestra

The subpetiolar process broad and with a fenestra present. Used in Antkey to separate Prionopelta antillana from Amblyoponinae zwaluwenburgi.
subpetiolar process

The petiole has a large, well developed subpetiolar process. The process is at the anterior portion of the petiole, and may be difficult to see unless a clear view is obtained. Used in Antkey to separate Vollenhovia from various other myrmicine genera.
hairs (Strumigenys godeffroyi)

hairs (Strumigenys godeffroyi)
hairs (Strumigenys rogeri)

hairs (Strumigenys rogeri)
petiolar node excised medially

dorsal surface of petiolar node excised medially to form two lateral teeth
subpetiolar process present

large subpetiolar process present
weakly sculptured

lateral portions of petiole and postpetiole weakly sculptured to lacking sculpture
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)