Figure 23 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 23 - Differences in ergatoid queen characters between Mystrium janovitzi and Mystrium oberthueri. A Mystrium janovitzi (CASENT0482696) B Mystrium oberthueri (CASENT0496064) C Mystrium janovitzi (CASENT0003302) D Mystrium oberthueri (CASENT0095743). A, B head in full-face view C, D pedicel and flagellum in lateral view.