Dorsal view of the mandibles¬†illustrates the absence of pairs of teeth. Image by Roberto Keller; available at AntWeb.org  
  Part of: Esteves FA, Fisher BL (2016) Taxonomic revision of Stigmatomma Roger (Hymenoptera: Formicidae) in the¬†Malagasy region. Biodiversity Data Journal 4: e8032. https://doi.org/10.3897/BDJ.4.e8032