Monomorium minimum workers at the nest entrance.

Manhattan, Kansas, USA
The 21 species photographed here are the most common ants encountered by pest control operators in North America. Not all species are found in all regions, however. 

Original file is 3,969 pixel-width and can be printed to small poster size; individual ants are between 200 and 600 pixels, depending on the species.
Monomorium sp. workers carrying sand grains from an excavation deep in their nest.

Archbold Biological Station, Florida, USA
Monomorium ergatogyna worker ant showing the typical alarm response: gaster raised and waving about a droplet of venom on an extruded stinger.

Grass Valley, California, USA
Monomorium ergatogyna queen and workers.

Mt. Tamalpais, Marin Co., California, USA
Monomorium sp. 

Archbold Biological Station, Florida, USA
Monomorium sp. workers carrying sand grains from an excavation deep in their nest.

Archbold Biological Station, Florida, USA
Monomorium ergatogyna

Empire Mine State Park, California, USA
Monomorium ergatogyna queen and workers.

Mt. Tamalpais, Marin Co., California, USA
Monomorium sp.

Archbold Biological Station, Florida, USA
Monomorium sp. 

Archbold Biological Station, Florida, USA
Monomorium sp.

Archbold Biological Station, Florida, USA
See photo in original gallery.
all images and text © Alex Wild 2001-2013