Camponotus festinus

Most carpenter ants hide their activity after dark, so a diurnal one is a treat: the colony forages in the open and the workers stay in plain view while you watch. It comes from humid tropical Sarawak, which keeps care predictable once the air stays moist, and the workers vary in size as the nest matures, so the arena never looks uniform. It is forgiving of small mistakes, which makes it a relaxed first carpenter ant for a keeper who wants something large and visible rather than fussy.

A carpenter ant that runs on sugars: workers carry liquid carbohydrate back to fuel the colony, while captured insects and other protein go to the developing brood. Keep a sweet source topped up and add protein a couple of times a week through the growth season.

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

Settle the founding queen in a test tube and leave her until the first nanitics walk the floor. This carpenter ant favours warm, damp wood, so a moisture-holding nest suits it best: Ytong, hybrid or 3D-printed, kept around 50-70%, beside a wide arena as numbers climb to several thousand. These are capable climbers, so line the arena rim with fluon (PTFE), a thin oil film, or talc and water. An ANTonTOP formicarium and starter kit bundle the damp nest, arena and barrier as one set.

This is a tropical colony with no winter rest, so keep it warm and working all year. Hold the nest at 24-28 °C and let the arena sit a touch wider at 22-30 °C. Humidity stays high on both sides, 50-70% in the nest and 50-70% in the arena. Warm only one end of the setup so the workers can shuttle between hotter and cooler zones and settle the brood where they prefer.

Founding is the slow part: the queen tends her first batch alone before numbers start to climb toward several thousand workers. Once the first foragers are out, the build picks up steadily. Your colony arrives as a laying queen with a cohort of workers and brood at various stages, ready to move straight into a humidity-holding nest.

• Camponotus is the largest ant genus on Earth, with well over a thousand named species spread across nearly every warm and temperate region.
• The “carpenter” name comes from the way many species gnaw galleries into wood for nesting; they shape it but do not eat it.
• Like other carpenter ants it carries Blochmannia, a bacterial partner living inside specialised gut cells that helps top up the colony’s nutrition.
• Being diurnal is unusual for the genus, since a large share of tropical Camponotus do their foraging after dark.

Is this a good ant for beginners?

Yes. It is rated Beginner, hardy and easy once the humidity is set right.

Does this day-active carpenter ant need a winter rest?

No. It is a tropical-pattern species, active and feeding year-round.

Does Camponotus festinus sting or bite?

No. There is no sting, only a mild bite.

How big does the colony get?

Several thousand workers at maturity.

How large is the queen?

The queen measures 19-21 mm.

How fast does it grow?

Slow at founding, then faster as the colony builds.

What does it eat?

Sugar water or nectar for energy and insects such as crickets or flies for protein.

Will the colony arrive alive?

Yes. It ships as queen plus workers and brood with a heat or cool pack, sent within 24 h with tracking.

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.