antennal scape length exceeds posterior margin of head (Ponerinae)

The antennal scapes, when arranged along the anteroposterior axis of the head, extend beyond the posterior head margin. Used in Antkey to separate Hypoponera opaciceps and Pachycondyla species from Hypoponera punctatissima, Hypoponera ragusai and Hypoponera zwaluwenburgi.