Ants of the Southwest
Myrmecocystus mexicanus


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Myrmecocystus mexicanus major worker.
Myrmecocystus mexicanus major worker.
Myrmecocystus mexicanus major worker.
Myrmecocystus mexicanus major worker.
Myrmecocystus mexicanus major worker (left) with minor worker (right). The major and minor castes look quite similar except for their size.
Myrmecocystus mexicanus major worker (left) with minor worker (right). The major and minor castes look quite similar except for their size.
Myrmecocystus mexicanus major worker carrying a large pebble out of the nest entrance.
Myrmecocystus mexicanus major worker carrying a large pebble out of the nest entrance.
Myrmecocystus mexicanus major worker on a piece of paper.
Myrmecocystus mexicanus major worker on a piece of paper.
Myrmecocystus mexicanus nest, with size inch ruler in front for scale. This gravel covered cone with a single large entrance is typical for Myrmecocystus mexicanus.
Myrmecocystus mexicanus nest, with size inch ruler in front for scale. This gravel covered cone with a single large entrance is typical for Myrmecocystus mexicanus.
Myrmecocystus mexicanus nest, with size inch ruler in front for scale. This gravel covered cone with a single large entrance is typical for Myrmecocystus mexicanus.
Myrmecocystus mexicanus nest, with size inch ruler in front for scale. This gravel covered cone with a single large entrance is typical for Myrmecocystus mexicanus.