Camponotus decipiens
Temperature
22–27 °C
Humidity
50–70%
Colony size
500–3,000
Queen size
12–14 mm
Worker size
5–11 mm
Hibernation temp
10 °C
Diet
Care Guide
Camponotus decipiens is a charming North American carpenter ant species that combines manageable colony growth with subtle beauty. The queen measures between 12 and 14 mm, while workers range from 5 to 11 mm, showing a gentle polymorphism that makes the colony visually interesting without the extreme caste specialisation seen in some other genera. These ants are claustral founders, meaning the queen raises her first brood without foraging, sealed inside a dark chamber — a reliable start for the keeper who enjoys a hands-off early stage.
One of the most captivating traits of Camponotus decipiens is its nesting behaviour. In the wild, they prefer dead, dry wood, often in stumps or fallen branches, and in captivity they adapt beautifully to timber, cork, or acrylic nests. They are predominantly nocturnal, so you will often see them most active in the evening, carrying out tiny pieces of debris or tending to their brood. Their diet is broad and easy to manage: they eagerly accept a variety of insects, such as fruit flies, mealworms, and cockroaches, alongside sugar water, honeywater, or honeydew. A balanced protein-and-carbohydrate schedule will keep your colony thriving, and they will appreciate occasional offerings of soft fruits or jelly.
Care difficulty
This species is best suited to keepers with some experience, earning its intermediate rating. While the claustral founding phase is forgiving, the colony requires stable conditions and attention to hibernation. In autumn, a gradual cooling to around 10°C is necessary for a dormant period of several months, which is essential for healthy growth and queen longevity. Without proper chilling, the ants may become sluggish or fail to produce new brood the following spring.
Housing
A formicarium with good ventilation and a separate foraging area works well for Camponotus decipiens. They are not heavy moisture dwellers, so maintain humidity between 50% and 70%, with a slightly drier foraging zone. Temperature should stay between 22°C and 27°C during the active season, with a gradient if possible. Provide nesting material that offers small chambers and tunnels — they love to reorganise their space. Regular cleaning of the outworld prevents mould, and a steady supply of water in a test tube or gravity feeder is vital.
First days after purchase
When your Camponotus decipiens colony arrives, place them in a quiet spot with subdued lighting. Do not disturb the queen or brood for at least a few days. Ensure they have access to water and a small drop of sugar water or honey, but avoid overfeeding. Observe from a distance — excessive vibrations or bright light can stress them, especially in the early weeks. Once the first workers begin exploring, you can gradually introduce small insects. Patience is key; a calm start builds a confident colony.