Workers are about 6–8 mm.
Fine-art photographic collection
Iridomyrmex purpureus
A dominant Australian meat ant that builds vast gravel-covered nest systems.
About this species
Meat ant
Iridomyrmex purpureus(Smith, 1858)
Information reviewed15 July 2026
Iridomyrmex purpureus is one of Australia’s most conspicuous ants. Colonies create large bare nest mounds and maintain trunk trails to trees hosting honeydew-producing insects.
Taxonomy
Animalia · Arthropoda · Insecta · Hymenoptera · Formicidae · Iridomyrmex
Source checked · checked 2026-07-15
AustraliaBroad documented localities — not a complete range map.
Widespread across mainland Australia.
Open woodland, grassland, pastoral land, roadsides and arid or semi-arid habitats.
Diurnal, with activity adjusted to surface temperature.
Honeydew, nectar, carrion and captured arthropods.
Large polydomous colonies may occupy many connected nests and contain hundreds of thousands of workers.
What makes this species remarkable?
Nest surfaces are often decorated with gravel and small objects, forming broad cleared discs.
Workers establish persistent foraging highways between nests and food trees.
Neighbouring colonies can form stable territorial boundaries marked by repeated confrontations.
Sources and scientific references
More photographs
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