Epopostruma frosti - trap-jaw ant
The genus Epopostruma can be told from other trap-jaw ants by the wide gap between the mandibles. In most trap-jaw ants, the mandibles are held close together when closed. Notice also the reduced number of antennal segments. Most ants have eleven or twelve, but in Epopostruma and other dacetine ants the number of segments has been reduced to six or fewer.
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