Forelius pruinosus workers warm themselves on a cool spring morning under a sun-exposed stone. Konza Prairie, Kansas, USA
Nest maintenance workers carry excavated soil from their nest. Konza Prairie, Kansas, USA
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