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Crematogaster nigropilosa. Unlike most stinging insects, ants of this genus don't use their stingers to inject venom. Rather, Crematogaster employ theirs like a brush to smear a droplet of venom on their attackers. This worker exudes a droplet in response to the photographer. 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
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
Lychas sp. marbled scorpion. Wilson's Promontory National Park, Victoria, Australia
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
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
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
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
See photo in original gallery.
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all images and text © Alex Wild 2001-2013