Epopostruma frosti - trap-jaw ant
South Australia

photograph © Alex Wild 2005

The odd shape of this trap-jaw ant head is due primarily to two features.  First, the musculature housing the trap spring mechanism favors the lobed, triangular head.  Second, the deep recesses underneath the eyes allow the antennae to be retracted tightly against the head.

Australia, SA: Poochera.
32º43'S 134º50'E, 85m, 14.x.2005
Grazed Mallee, ants on tree trunks, 1:00am.

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 D60, using a Canon 65/2.8 MPE 1-5x Macro lens.