Drepanognathus Smith, F., 1858 Harpegnathos is a small ponerine genus of ants found in South and Southeast Asia.

[3] The genus was established by Thomas C. Jerdon in 1851 to house the single species Harpegnathos saltator, found in India.

[6] Regarding the spatially-dependent morphology, at the distal-to-middle part, the mandible has double-rowed, non-parallel teeth responsible for powerful clamping.

What differs from other ants is that, once the short-lived founding queen dies, several daughter workers replace her as reproductives in the colony.

They fight to establish a dominance hierarchy, and a few high-ranking workers become reproductives and lay eggs, so-called gamergates.