Odontomachus meinerti, with mandibles locked into the "ready-to-fire" position, trigger hairs pointing forward.

Misiones, Argentina
The tip of the trap: the blunt-force weapons of the trap-jaw ant Odontomachus meinerti.

Misiones, Argentina
An Odontomachus meinerti worker threatens the photographer.

Misiones, Argentina
Odontomachus meinerti is the smallest of the new world Odontomachus species.

Misiones, Argentina
Odontomachus coquereli

Madagascar
Odontomachus coquereli. Notice the tiny mites riding on this ant's mandibles.  The mites are apparently able to hold tight even when the jaws of their host slam shut at high speed.

Madagascar
Odontomachus clarus. Male ants betray the wasp ancestry of ants, often bearing little resemblance to the females of the species.  This is a male of the desert trap-jaw ant.

Tucson, Arizona, USA
Sensitive trigger hairs of the trap-jaw ant Odontomachus coquereli protrude forward from the base of the mandibles.

Madagascar
Caught!  A small cricket is impaled on the mandibles of a malagasy trap-jaw ant, Odontomachus coquereli.

Madagascar
Odontomachus meinerti, with mandibles locked into the "ready-to-fire" position, trigger hairs pointing forward.

Misiones, Argentina
Odontomachus meinerti, with mandibles locked into the "ready-to-fire" position, trigger hairs pointing forward.

Misiones, Argentina
Odontomachus meinerti, with mandibles locked into the "ready-to-fire" position, trigger hairs pointing forward.

Misiones, Argentina
See photo in original gallery.
all images and text © Alex Wild 2001-2013