Figure 18 from: Yoshimura M, Fisher B (2014) A revision of the ant genus Mystrium in the Malagasy region with description of six new species and remarks on Amblyopone and Stigmatomma (Hymenoptera, Formicidae, Amblyoponinae). ZooKeys 394: 1-99. https://doi.org/10.3897/zookeys.394.6446

Figure 18 - Differences in worker morphology between Mystrium oberthueri and Mystrium eques. A Mystrium oberthueri (CASENT0496066) B Mystrium eques (CASENT0418314: holotype) C, E Mystrium oberthueri (CASENT0499569) D, F Mystrium eques (CASENT0317399). A, B head in full-face view C, D pedicel and flagellum in lateral view E, F mandible in dorsal view.