Atta texana workers removing soil from an excavation deep in the nest.

Austin, Texas, USA
A Texas Leafcutter Ant (Atta texana) carrying a leaf back to her nest, where it will be fodder for the fungus that sustains the ants.

Austin, Texas, USA
Atta texana

Austin, Texas, USA
Atta texana. Ants slice through leaves using a repeated scissoring motion, where the leading mandible (on the right) is anchored into the leaf and pulls the trailing mandible to make the cut. 

Austin, Texas, USA
Atta texana

Austin, Texas, USA
A Texas Leafcutter Ant (Atta texana) carries a cut leaf.  Ants do not eat the leaves directly; rather, they use to leaves to feed an underground fungus that serves as the ants' primary food source.

Austin, Texas, USA
A queen leafcutter ant (Atta texana) dwarfs her daughter workers.

Captive colony at the University of Texas
A queen leafcutter ant (Atta texana) dwarfs her daughter workers.

Captive colony at the University of Texas
A Texas Leafcutter Ant (Atta texana) carrying a leaf back to her nest, where it will be fodder for the fungus that sustains the ants.

Austin, Texas, USA
A queen leafcutter ant (Atta texana) dwarfs her daughter workers.

Captive colony at the University of Texas
A queen leafcutter ant (Atta texana) dwarfs her daughter workers.

Captive colony at the University of Texas
A queen leafcutter ant (Atta texana) dwarfs her daughter workers.

Captive colony at the University of Texas
See photo in original gallery.
all images and text © Alex Wild 2001-2013