petiole tall and narrow with strongly convex subpetiolar process (Hypoponera)

The petiole is subrectangular, relatively tall and narrow and with a nearly flat anterior face. The subpetiolar process is well developed and strongly convex. Used in Antkey to separate Hypoponera opaciceps, Hypoponera punctatissima and Hypoponera ragusai from Hypoponera zwaluwenburgi.