Workers are variable, approximately 5–15 mm long, with long legs that lift the body above the hottest layer of air near the ground.
Fine-art photographic collection
Cataglyphis bicolor
A heat-running navigator that crosses open desert without a pheromone trail.
About this species
Bicoloured desert ant
Cataglyphis bicolor(Fabricius, 1793)
Information reviewed15 July 2026
Cataglyphis bicolor is a North African desert ant adapted to fast, solitary foraging on exposed ground. Workers search for arthropods killed or disabled by heat, then return by path integration using celestial compass information and distance estimates.
Taxonomy
Animalia · Arthropoda · Insecta · Hymenoptera · Formicidae · Formicinae · Cataglyphini · Cataglyphis
Accepted · checked 2026-07-15
North African arid regionsBroad documented localities — not a complete range map.
North African desert and semi-desert regions. Older studies used a broader bicolor species concept, so some historical records may refer to closely related species.
Open desert, semi-desert, stony steppe and sparsely vegetated arid ground with intense sunlight.
Strongly diurnal and heat adapted. Foraging peaks when surface temperatures exclude many predators and competitors, but remains bounded by the ant’s own thermal limits.
Primarily scavenged arthropods, especially insects that have died from heat stress; occasional other animal remains are also collected.
Subterranean nests house workers in chambers below the extreme surface temperatures. Foragers usually search individually rather than following trail pheromones.
What makes this species remarkable?
The ant reads the polarised pattern of skylight as a compass, even when the sun itself is partly obscured.
It continuously integrates direction and distance, allowing a direct homeward run after a winding search.
Taxonomic revisions showed that older literature sometimes combined several similar North African desert ants under the name Cataglyphis bicolor.