petiole subtriangular

The petiole is subtriangular, relatively short and broad with distinctly convex anterior and posterior faces. The subpetiolar process is reduced to a small convexity that weakly breaks the outline of the ventral margin. Used in Antkey to separate Hypoponera zwaluwenburgi from Hypoponera opaciceps, Hypoponera punctatissima and Hypoponera ragusai.