An Eciton burchellii submajor dismantles an unforunate Pseudomyrmex worker.

Maquipucuna reserve, Pichincha, Ecuador
An Eciton burchellii submajor dismantles an unfortunate Pseudomyrmex worker.

Maquipucuna reserve, Pichincha, Ecuador
Dorymyrmex reginicula (at left), a socially parasitic species, is harassed by a worker of its host Dorymyrmex elegans.  Workers of the two species coexist in a single nest for a period after the parasite queen has assumed reproduction and before the last remaining host workers die off.  The transition period is not entirely smooth, as evidenced by this aggressive interaction.

Archbold Biological Station, Florida, USA
Dorymyrmex reginicula (at left), a socially parasitic species, is harassed by a worker of its host Dorymyrmex elegans.  Workers of the two species coexist in a single nest for a period after the parasite queen has assumed reproduction and before the last remaining host workers die off.  The transition period is not entirely smooth, as evidenced by this aggressive interaction.

Archbold Biological Station, Florida, USA
Dorymyrmex reginicula (at left), a socially parasitic species, is harassed by a worker of its host Dorymyrmex elegans.  Workers of the two species coexist in a single nest for a period after the parasite queen has assumed reproduction and before the last remaining host workers die off.  The transition period is not entirely smooth, as evidenced by this aggressive interaction.

Archbold Biological Station, Florida, USA
Dorymyrmex reginicula (at left), a socially parasitic species, is harassed by a worker of its host Dorymyrmex elegans.  Workers of the two species coexist in a single nest for a period after the parasite queen has assumed reproduction and before the last remaining host workers die off.  The transition period is not entirely smooth, as evidenced by this aggressive interaction.

Archbold Biological Station, Florida, USA
As neighboring Tetramorium pavement ant colonies grow into each others' territories, they test their strength in extended battles.

Champaign, Illinois, USA
A feisty little Argentine ant (Linepithema humile) attacks a much larger fire ant (Solenopsis invicta).  Both species co-exist naturally in subtropical South America, but in the southern United States where both have been accidentally introduced, the fire ant has displaced the Argentine ants.

Austin, Texas, USA
Argentine ants (Linepithema humile), an aggressive pest species introduced by human commerce to California, attack a native Pogonomyrmex harvester ant.  Native ants in many places around the world have disappeared in areas invaded by Argentine ants. 

Davis, California, USA
An Eciton burchellii submajor dismantles an unfortunate Pseudomyrmex worker.

Maquipucuna reserve, Pichincha, Ecuador
An Eciton burchellii submajor dismantles an unfortunate Pseudomyrmex worker.

Maquipucuna reserve, Pichincha, Ecuador
An Eciton burchellii submajor dismantles an unfortunate Pseudomyrmex worker.

Maquipucuna reserve, Pichincha, Ecuador
See photo in original gallery.
all images and text © Alex Wild 2001-2013