File:Zookeys-394-001-g004.jpg

Figure 4. Generic diagnostic characters of Mystrium. A Mystrium rogeri (CASENT0001069) B Mystrium voeltzkowi (CASENT0317584) C Mystrium mysticum (CASENT0429965) D Mystrium janovitzi (CASENT0482696). A, B,  C worker D ergatoid queen. A clypeus and mandible in oblique anterior view B mouthparts in oblique anterior view (left galea is omitted) C mandible in oblique lateral view D head in lateral view.

Yoshimura, M. & Fisher, B.L. 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. doi:10.3897/zookeys.394.6446