Cataglyphis aenescens

Cataglyphis aenescens is a beginner cataglyphis from Mediterranean and Middle East. Polished dark bronze with metallic reflections in sunlight. A glossy bronze Mediterranean desert runner – one of the easier Cataglyphis for beginners. Cataglyphis – desert runners famous for path-integration navigation and explosive midday foraging speeds.

Start the founded queen in a sealed glass test tube setup until the colony reaches 15–20 workers. Then move to a small-to-medium formicarium of acrylic, ytong or plaster with a connected outworld. Dry sand substrate suits this desert genus – keep one humid corner only.

Keep the nest at 24–32 °C during the active season, with one cooler shaded zone for the queen. Humidity in the nest chambers should sit around 40–65 %, with one wetter zone the colony can choose. Avoid direct sun and heavy hot spots – gentle ambient warmth from a low-wattage heat mat on one wall is ideal.

Sugar source: small fresh-frozen and thawed insects 2–3 times per week (flightless fruit flies, small crickets). Sugar water 1–2 times per week. They process meals quickly thanks to their high metabolism.

Protein: fresh frozen and thawed insects – crickets, mealworms, fruit flies, cockroaches – 1–2 times per week. Increase frequency when brood is present.

Variety helps: rotate prey species so the colony gets a balanced amino-acid profile; never feed only mealworms.

Hydration: always offer plain water on a separate cotton, never let the test tube reservoir run dry.

Hygiene: remove leftover insects after 24 hours to prevent mould and mites.

Winter rest is essential for this species. Light winter rest at 10–14 °C for 2 months. Drop temperature gradually over 2 weeks, keep the colony in a cool, dark, draft-free place, check humidity weekly, and resume normal feeding when temperatures rise again in spring. Skipping hibernation shortens queen life and disrupts brood cycles.

Apply PTFE escape barrier on the top inner edge of the outworld – reapply every few months.

Use a tight lid with fine mesh; check it after every cleaning.

Inspect the formicarium silicone joints and tubing connectors monthly.

Keep the outworld dry on the inside edge where PTFE is applied – wet PTFE loses grip.

Never disturb the queen during founding. Keep her in the dark, in a test tube, with minimal vibration.

Move the colony to a formicarium only when there are 15–20 workers and the test tube is genuinely full.

Always offer water on a separate cotton outside the food.

Quarantine any new insect feed for 24 hours before offering it to the colony.

Avoid synthetic fragrances, smoke and aerosols in the room with the colony.

This species is a good fit for first-time keepers. Even so, an ant colony is a living organism – your responsibility starts the moment it arrives. Read the care information here and in our care guides before placing the order, and contact us if anything is unclear.

Your colony ships in a sealed glass test tube with a cotton water reservoir and a cotton plug – the same setup we use ourselves. It is packed in an insulated, padded shipping box. We hand-pick every colony, count workers and inspect the queen on the day of dispatch.

• Described by William Nylander in 1849 from Greece – the species name (aenescens = bronze-like) describes the metallic sheen.
• Ranges across the eastern Mediterranean, the Levant, and into Iran and Central Asia.
• Workers use path-integration (vector navigation) to find their way back to nests after long looping foraging trips.
• Highly heat-tolerant – workers continue foraging at ground temperatures above 50 °C when most other ants retreat.
• Unlike many Cataglyphis, this species accepts moderate cooling and adapts well to temperate keeping conditions.

How big can the colony grow?

polygyne, claustral founding, modest colonies of 500–2000 workers. Growth is steady but not explosive – give the colony 1–2 years to reach a few hundred workers.

Is this species safe around children and pets?

Workers do not sting and rarely bite if the formicarium is intact. As with any live insect, supervise children around the setup and keep it out of reach of curious pets.

Will the colony arrive alive?

Yes. We use insulated, padded boxes and ship only on weekdays when forecasted weather along the route is safe. If anything goes wrong in transit, contact us within 24 hours of delivery with an unboxing video.

Can I skip hibernation?

No. Hibernation is essential for this temperate species – queens need the cold rest to maintain long-term fertility and brood cycles.

Can I see this species in your video shorts?

We post regular video shorts of feeding sessions, brood close-ups and worker behaviour on our social channels.