FIGURES 1 – 4. Scanning electron micrograph of Trachymyrmex atlanticus, paratype worker from Brazil, RJ: Restinga da Marambaia. 1. Head in frontal view; scale bar = 500 μm. 2. Mesosoma and waist in lateral view; scale bar = 500 μm. 3. Waist in lateral view (detail); scale bar = 125 μm. 4. Postpetiole and gaster in dorsal view; scale bar = 250 μm