Camponotus fallax

Camponotus fallax is a medium intermediate Camponotus from Central and Northern Europe. Shiny black body with reddish legs, slender and elongated. Colonies are monogyne, claustral founding, small mature colonies of a few hundred workers and nocturnal, lives entirely inside dead wood. A great pick for keepers who appreciate classic carpenter-ant biology – slow steady growth, intelligent foragers and visible polymorphism between minor and major workers.

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 for foraging. A footprint of around 15 × 10 cm works well for the first 1–2 years. Add red filter film or a dark cover to give the colony a sense of nest darkness – Camponotus are calmer when the chambers stay shaded.

Keep the nest at 20–24 °C during the active season. Humidity in the nest chambers should sit around 50–65 %, with one wetter zone the colony can choose. Avoid direct sun and avoid heating from a single hot spot – gentle ambient warmth from a low-wattage heat mat on one wall is ideal.

• Sugar source: honey water, sugar water (1:3) or commercial ant jelly – 2–3 times per week. Camponotus love sugars.
• 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.

This species needs a true cold winter rest. Provide a cool dark place at 4–10 °C from late autumn for around 3 months. Stop feeding 2 weeks before. Keep nest humidity stable. Bring back to room temperature gradually in spring. Skipping hibernation drastically shortens the queen’s life.

• 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 – Camponotus are very sensitive.

This species is best suited to keepers who have already kept at least one ant colony successfully. You take full responsibility for housing, temperature, humidity, feeding and wintering once the colony reaches you. If you are unsure whether your setup or experience is enough, please contact us before ordering – we would rather help you choose a better-matched species than see a colony struggle.

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 1856; the name “fallax” means “deceptive” in Latin, alluding to how easily this small Camponotus is overlooked.
• A true dendrobiont – colonies live almost entirely inside dead branches, wooden fence posts and old wood in trunks.
• Range extends from southern Sweden through Europe to northwest Africa, the Caucasus, Kazakhstan and southwestern Siberia.
• Polymorphic with three worker castes (minor, media, major); colonies stay small, usually only a few hundred workers.
• Workers are famously timid – they retreat from confrontation and majors sometimes jump from branches to escape danger.

How big can the colony grow?
Monogyne, claustral founding, small mature colonies of a few hundred 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.

What if I cannot give a proper winter hibernation?
Then choose a species that does not need it. Skipping the cold rest for a hibernating species shortens the queen’s life dramatically – it is not a small concession.

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 – search “ANTonTOP” on YouTube, Instagram and TikTok.