Tetramorium caespitum - Pavement Ant
Washoe County, Nevada, USA

photograph © Alex Wild 2004

Pavement ants from different colonies fighting a territorial battle.  This species is introduced into North America from Europe.

USA, NV, Washoe Co.: 5 km S Nixon, 39º48'N 119º21'W, 1185m
Riparian Populus forest.  #AW2386, voucher specimens deposited in ALWC and MHNG.

This image is copyrighted by the photographer and cannot be used without permission. To obtain permission to use this image, please email Alex Wild. (alwild (at)  Most of the photographs on are reduced from their original size and compressed for more efficient web transmission.  In some cases, higher quality versions are available.

This image was captured with a Canon EOS D60, with a Canon 65/2.8 MPE 1-5x Macro lens.