Cephalotes rohweri - Turtle Ant
Arizona, USA

photograph © Alex Wild 2007

Cephalotes major workers are among the most heavily-armored ants.  Notice the broad, plate-shaped head disc that is used for blocking the nest entrance.

USA AZ Pima Co.: Tucson Mountains
32º03'N 111º06'W 950m. xi.2007.
Ex Parkinsonia Palo Verde tree, Sonoran Desert.

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.