Forelius pruinosus workers warm themselves on a cool spring morning under a sun-exposed stone. Note the color variation among workers; color is not always a reliable identification character in ants. Konza Prairie, Kansas, USA
A fallen robber fly quickly attracts ants. In the heat of mid-day, the thermophilic Forelius is the only species that tolerates the hot sand. Archbold Biological Station, Florida, USA
