Key to the Pheidole diligens species group

41 Major: a strip from eye to occiput foveolate and opaque..................................................... 41a

- Major: region between eye and occiput smooth and shiny.................................................... 42

41a Major: in side view, a conspicuous pore present in mesopleuron........................... Pheidole latiscava sp. nov.

- Major: in side view, mesopleuron without any conspicuous pore...................... Pheidole piceonigra Emery 1922