Camponotus cruentatus

This is one of Europe’s most handsome carpenter ants, with rich reddish tones over a dark body and a colony that stays visually busy as it grows. Foragers are diurnal and confident out in the open, so there is a lot to watch through the day. It earns its intermediate rating from the mandatory winter rest and the scale of a mature nest, both of which suit a keeper who already has the basics down. For anyone who has raised a starter species and wants something bigger and distinctly European, it is a natural step up with plenty of long-term growth ahead.

These ants live largely on sugars and honeydew, so a reliable nectar feeder keeps the foragers busy, while insect protein builds the brood. Offer prey a couple of times a week and the colony does the rest.

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

This Mediterranean carpenter ant likes a fairly dry, airy nest, so a ytong or aerated-concrete formicarium dampened only to 40-60% with a roomy arena suits it. Found the queen in a test tube and upgrade once workers fill the chamber, but time any rehousing for the active season, as the colony needs a winter rest at 5-10 degrees for four months. Lively climbers, they need a firm fluon, oil, or talc-and-water rim. ANTonTOP formicaria and starter kits supply nest, arena and barrier sized to each stage.

This species needs a proper winter rest: cool it to 5-10 °C for 4 months, lowering the temperature gradually in late autumn and returning to normal warmth in spring. Through the active season keep the nest at 22-26 °C and the arena a little warmer at 24-28 °C, with nest humidity 40-60% and the arena drier at 30-50%. Heat one end only so the colony can settle along a gradient.

The colony builds slowly through the first year, then expands steadily as worker numbers climb, reaching up to 10,000 at maturity. You receive a laying queen with her workers and brood to continue the colony.

• This is one of the most conspicuous carpenter ants of southwestern Europe, with rich reddish workers over a dark body that forage boldly in daylight.
• The species name comes from Latin for blood-coloured, a nod to that reddish hue.
• Colonies are confident, fast-moving foragers and recruit in numbers to food, which makes a busy arena easy to watch.
• Carpenter ants nest by carving galleries in wood without eating it and defend themselves with a bite and formic acid spray.

Is this ant good for beginners?

It is rated Intermediate, so it suits a keeper who has already raised a starter colony.

Does Camponotus cruentatus need a winter rest?

Yes, a winter rest at 5-10 °C for 4 months is mandatory.

Does Camponotus cruentatus sting or bite?

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

How large does a cruentatus colony get?

Up to 10,000 workers over time.

How large is the queen?

The queen measures 16-18 mm, with majors up to 14 mm.

How fast does it grow?

Slow at first, then steady once the first workers mature.

What does it eat?

Sugar water or nectar plus insects like crickets and flies; no seeds.

How is it shipped?

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

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.