Cephalotes atratus

This is the species behind the famous trick of directed gliding flight: knocked from the canopy, a worker steers itself back to the trunk rather than tumbling to the forest floor. It is just as striking at rest, with a broad shield-like head and disc-headed soldiers that plug the nest entrances with their own faces. Native to Costa Rica and across Central and South America, it forages in daylight where you can actually watch the armour-plated workers at work. It demands a precise, stable tropical setup, so it is firmly one for experienced keepers, but few ants reward the effort with this much character.

A canopy turtle ant that leans heavily on sugars, pollen and bird droppings for nitrogen, taking insect protein only selectively for the brood. Keep a sugar source available at all times and offer protein two or three times a week.

★★★ readily · ★★ moderately · ★ occasionally · ✗ not eaten

Found the colony in a test tube and move it across once the first nanitics floor it. This arboreal turtle ant lives in hollow-wood cavities, so it wants a nest that mimics that, ventilated yet humidity-stable, in aerated concrete or a 3D-printed cavity design, kept warm and steady, with a spacious arena for foraging. The armoured workers and gliding majors still climb, so seal the rim with fluon (PTFE), oil, or talc and water. ANTonTOP formicaria and starter kits supply nest, arena and barrier as one set.

A precise, stable tropical setup suits it. Keep the nest at 20-26 °C and the arena at 22-32 °C, with nest humidity at 55-70% and arena humidity at 40-60%. Build a clear thermal gradient across the arena so the colony chooses its spot rather than sitting at one fixed temperature. It is tropical with no hibernation, so keep it warm and active all year.

Cephalotes are slow, deliberate growers, so patience is part of the appeal as the colony works toward 1,000 to 5,000 workers. There is no shortcut here: steady tropical conditions let it build at its own measured pace. Your colony arrives as a queen with workers and brood, ready for a long-term arboreal project.

• This is the gliding ant of the rainforest canopy: when a worker falls or is knocked off a branch, it steers its descent in a controlled backward glide to land on the same trunk.
• The soldiers have broad, disc-shaped heads they use as living doors, plugging the nest entrance to keep intruders out.
• Turtle ants host specialised gut bacteria that recycle nitrogen, letting the colony thrive on a sugar- and pollen-heavy diet that is poor in protein.

Is Cephalotes atratus good for beginners?

No, it is rated Pro and best for experienced keepers who can hold a precise tropical setup.

Does it need hibernation?

No, it is tropical and stays active year-round.

Does it sting?

It has a sting alongside a mild bite, but it is defensive rather than aggressive.

How big can the colony get?

Between 1000 and 5000 workers from one queen.

How big is the queen?

The queen is 20 mm, workers 8-14 mm and soldiers up to 14 mm.

How fast does it grow?

Slowly and steadily; Cephalotes are deliberate growers, so plan for the long game.

What does it eat?

Mostly carbs, sugar water and nectar, with insects taken selectively for brood.

Will it arrive alive?

You get queen, workers and brood with a heat or cool pack, dispatched within 24 h with tracking for safe live delivery.

Escape prevention. Coat the inner rim of every open arena with fluon (PTFE), or use talc-and-water or an oil barrier as a backup, and keep a tight, fine-mesh lid on top. Check the barrier regularly, since dust, condensation and feeding debris break a fluon line over time. Keep tubing connectors tight and seal any gaps in the nest.

Keeping reminders. Always offer fresh water and never let the nest dry out completely. Give carbohydrates continuously and protein a few times a week, and remove uneaten insect prey within 24 hours before it moulds. Keep the formicarium out of direct sunlight and away from constant vibration, which stresses a young colony. A water-filled test tube plugged with cotton makes an ideal spare incubator whenever you need one.

Before you buy – do not rehouse too early. Have a test-tube setup or a small formicarium with an outworld and a working barrier ready before your colony arrives. A founding colony grows slowly at first, which is normal. Moving a small colony into a large nest too soon invites mould, mites and stress, and the workers die off one by one. Keep the colony in its open test tube on the arena, plug the nest entrance with cotton, and open up the next chambers only once the colony fills roughly 10-15% of the space.

What we ship. Every colony ships with a live-arrival guarantee, backed by our 24h unboxing-video guarantee: if the queen does not arrive alive, we reship free. Parcels travel with DHL, InPost (PL) or EMS, with a heat or cold pack to suit the season, packed discreetly and securely. We ship across the EU and worldwide, with free shipping over the Europe threshold.