The wide distribution range from India and Sri Lanka in the west to peninsular Malaysia and perhaps the Philippine archipelago in the east suggests that more species may be discovered.

In 2003, Fernández described a new genus and species, Tyrannomyrmex rex, from peninsular Malaysia based on a single specimen collected from leaf litter at Negri Sembilan, Pasoh Forest Reserve in 1994.

[6] A single worker of a third species, T. legatus, described Alpert (2013) was collected in 2006 from leaf litter in a lowland dipterocarp undisturbed forest in southern Sri Lanka.

[11] Fernández (2003) provisionally concluded that Tyrannomyrmex is a distinct and isolated myrmicine genus with possible affinities to either the Adelomyrmex-genus group or the tribe Solenopsidini.

[13] All species have small eyes reduced to a few ommatidia, an 11-segmented antenna with an ill-defined 3-segmented club, papal formula 2-2, and a masticatory border largely edentate with two apical teeth.