Workers are medium-sized, slender and reddish, with curved sabre-like mandibles.
Fine-art photographic collection
Polyergus rufescens
An obligate slave-making ant unable to run a colony without captured Formica workers.
About this species
European Amazon ant
Polyergus rufescens(Latreille, 1798)
Information reviewed15 July 2026
Polyergus rufescens is Europe’s specialised slave-making ant. Workers raid nests of related Formica species, seize pupae and carry them home. The emerging host workers then perform foraging, brood care and nest maintenance.
Taxonomy
Animalia · Arthropoda · Insecta · Hymenoptera · Formicidae · Formicinae · Formicini · Polyergus
Source checked · checked 2026-07-15
Europe and western AsiaBroad documented localities — not a complete range map.
Much of continental Europe extending into western Asia.
Warm grassland, steppe, open woodland and dry field margins where suitable Formica hosts occur.
Raids take place in organised columns during warm conditions.
Adults depend largely on food collected and shared by enslaved Formica workers.
A Polyergus queen and workers live with a workforce of captured host-species workers.
What makes this species remarkable?
The curved mandibles are excellent for fighting but poor for routine brood care.
A newly mated queen must invade a host nest to establish a colony.
Raided pupae emerge without recognising that they belong to another species.