Oecophylla smaragdina

Cairns, Queensland, 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
Neivamyrmex nigrescens

Huachuca Mountains, Arizona, USA
Labidus praedator

Gamboa, Panama
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
Monomorium ergatogyna worker ant showing the typical alarm response: gaster raised and waving about a droplet of venom on an extruded stinger.

Grass Valley, California, USA
Neivamyrmex nigrescens

Huachuca Mountains, Arizona, USA
Labidus praedator

Gamboa, Panama
Neivamyrmex nigrescens

Huachuca Mountains, Arizona, USA
Neivamyrmex nigrescens

Huachuca Mountains, Arizona, USA
Neivamyrmex nigrescens

Huachuca Mountains, Arizona, USA
See photo in original gallery.
all images and text © Alex Wild 2001-2013