Mandibles of Stigmatomma besucheti Baroni-Urbani worker; dorsal view (CASENT0906833). The arrow highlights the most basal tooth, which is similar in size with the more apical teeth. Image by F. A. Esteves; available at  
  Part of: Esteves FA, Fisher BL (2016) Taxonomic revision of Stigmatomma Roger (Hymenoptera: Formicidae) in the Malagasy region. Biodiversity Data Journal 4: e8032.