Pyramica arizonica
Arizona, USA

photograph © Alex Wild 2006

The minute Pyramica arizonica (at center) is found only inside nests of another ant species, the fungus-growing ant Trachymyrmex arizonensis.

USA AZ Santa Cruz Co.: Sycamore Canyon, 
24km WNW Nogales.
1200m 31º25´N 111º12´W 
7.x.2006 Oak woodland, Pyramica in and around entrance tunnel of Trachymyrmex nest.

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 20D, using a Canon 65/2.8 MPE 1-5x Macro lens.