Figure 12 from: Lenhart P, Dash S, Mackay W (2013) A revision of the giant Amazonian ants of the genus Dinoponera (Hymenoptera, Formicidae). Journal of Hymenoptera Research 31: 119-164. https://doi.org/10.3897/jhr.31.4335

Figure 12 - Worker head, oblique antero-lateral view illustrating microsculpturing difference. A Dinoponera mutica (this smooth integument type is also found in Dinoponera lucida, Dinoponera longipes and Dinoponera hispida) B Dinoponera quadriceps (this rough integument type is also found in Dinoponera gigantea and Dinoponera australis).