The ant Odontomachus simillimus on AntWeb (2017) (CASENT0172667), same specimen as top row in (a).  
  Part of: Egloff W, Agosti D, Kishor P, Patterson D, Miller J (2017) Copyright and the Use of Images as Biodiversity Data. Research Ideas and Outcomes 3: e12502. https://doi.org/10.3897/rio.3.e12502