When threatened, a worker Camponotus sericeiventris tucks her gaster under her body, aiming the acid-ejecting acidopore forward at the perceived threat.

Carrancas, Minas Gerais, Brazil
When threatened, a worker Camponotus sericeiventris tucks her gaster under her body, aiming the acid-ejecting acidopore forward at the perceived threat.

Carrancas, Minas Gerais, Brazil
When threatened, a worker Camponotus sericeiventris tucks her gaster under her body, aiming the acid-ejecting acidopore forward at the perceived threat.

Carrancas, Minas Gerais, Brazil
When threatened, a worker Camponotus sericeiventris tucks her gaster under her body, aiming the acid-ejecting acidopore forward at the perceived threat.

Carrancas, Minas Gerais, Brazil
Polyrhachis (Hagiomyrma) sp. golden spiny ant

Coen, Queensland, Australia
Camponotus mus

Correa, Santa Fe, Argentina
Polyrhachis (Hagiomyrma) sp. golden spiny ant

Coen, Queensland, Australia
Camponotus mus

Correa, Santa Fe, Argentina
Camponotus mus.  Most species in the cosmopolitan ant genus Camponotus have workers of varying size and proportion in the nest.

Correa, Santa Fe, Argentina
Camponotus mus

Correa, Santa Fe, Argentina
Camponotus mus

Correa, Santa Fe, Argentina
Camponotus mus

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