Pogonomyrmex (Ephebomyrmex) pima
Arizona, USA

photograph © Alex Wild 2008

Pogonomyrmex pima is one of North America's smallest Pogonomyrmex species. Unlike most Pogos, it lacks a psammophore structure that helps desert ants carry sand.  This and related species comprise an ancient lineage that diverged from the more commonly seen harvester ants prior to the evolution of the psammophore. 

USA AZ Pima Co.: Tucson
32º14.24'N 110º56.44'W 750m. iii.2008
Urban lot, nest in soil.

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 MP-E 65mm 1-5x macro lens.