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Her nest disturbed by the photographer, a Solenopsis thief ant worker exudes a droplet of venom on her stinger and waves it in the air. This behavior is known as "gaster-flagging". Morretes, Paraná, Brazil
Her nest disturbed by the photographer, a Solenopsis thief ant worker exudes a droplet of venom on her stinger and waves it in the air. Morretes, Paraná, Brazil
A Solenopsis worker stands guard over an exposed pile of larvae. Morretes, Paraná, Brazil
Solenopsis invicta fire ant Austin, Texas, USA
Solenopsis invicta stinging, an activity this species performs with particular zest. To sting, a fire ant first bites her target with her mandibles. The bite anchors her in place and provides leverage to insert the stinger. The bite itself is harmless, it is the subsequent sting that carries the venom and the pain. Austin, Texas, USA
Among the most damaging pest ant species is Solenopsis invicta, a fire ant native to South America. This species has been accidentally imported to the southern United States, eastern Australia, China, and elsewhere. Here a worker fire ant is shown in stereotypical defensive posture, her sting extruded, waving a droplet of venom in the air. Austin, Texas, USA
Pogonomyrmex maricopa harvester ants inspect a mesquite seed. Tucson, Arizona, USA
Myrmecia is known for its formidable sting. Here a bull ant (Myrmecia piliventris) sinks her stinger into the photographer, who probably deserves the punishment after breaking clumsily into this ant's nest. Yandoit, Victoria, Australia
Pogonomyrmex maricopa workers carrying excavated soil from their nest. Tucson, Arizona, USA
Solenopsis invicta stinging, an activity this species performs with particular zest. To sting, a fire ant first bites her target with her mandibles. The bite anchors her in place and provides leverage to insert the stinger. The bite itself is harmless, it is the subsequent sting that carries the venom and the pain.

Austin, Texas, USA
Solenopsis invicta stinging, an activity this species performs with particular zest. To sting, a fire ant first bites her target with her mandibles. The bite anchors her in place and provides leverage to insert the stinger. The bite itself is harmless, it is the subsequent sting that carries the venom and the pain. Austin, Texas, USA
Solenopsis invicta stinging, an activity this species performs with particular zest. To sting, a fire ant first bites her target with her mandibles. The bite anchors her in place and provides leverage to insert the stinger. The bite itself is harmless, it is the subsequent sting that carries the venom and the pain.

Austin, Texas, USA
See photo in original gallery.
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all images and text © Alex Wild 2001-2013