Pyramica membranifera
Arizona, USA

photograph © Alex Wild 2007

The tiny ants of the genus Pyramica are highly-specialized predators in soil, leaf litter, and other enclosed environments.  They hunt by stealth, approaching their prey slowly and deliberately. Pyramica membranifera is perhaps the most widely distributed species in the group, as it has spread with human commerce to warmer regions around the globe.  This ant was observed in downtown Tucson, Arizona.

USA AZ Pima Co.: Tucson
32º14.05'N 110º54.90'W 730m. 23.x.2007.
Ant nest under stone next to sidewalk, urban.
#AW2934 voucher specimens deposited at ALWC.

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.