Camponotus quercicola
Temperature
22–28 °C
Humidity
50–70%
Colony size
500–3,000
Queen size
11–13 mm
Worker size
5–10 mm
Hibernation temp
10 °C
Diet
Care Guide
Camponotus quercicola is a charming and moderately sized carpenter ant species native to oak woodlands of the western United States, where it nests in dead branches and rotting logs. These ants display a gentle size polymorphism: the queen measures 11 to 13 mm, while workers range from about 5 mm for minors up to 10 mm for larger majors. The majors possess slightly broader heads and stronger mandibles, used for defense and processing larger food items. Colony size typically stays between 500 and 3,000 workers, making them a manageable yet lively species for the intermediate keeper who wants more than a beginner colony but is not ready for a massive supercolony.
One of the most appealing traits of Camponotus quercicola is its claustral founding — the queen seals herself in a small chamber and raises the first brood entirely on her own metabolic reserves, without needing any food until the first workers emerge. This makes initial setup very straightforward. In the wild, these ants forage nocturnally and are known to tend aphids for honeydew, but in captivity they adapt well to a varied diet of insects (crickets, mealworms, roaches) alongside sugar water or diluted honey. They also appreciate occasional protein-rich treats like boiled egg or jelly designed for ants. Their moderate humidity and temperature requirements are easy to maintain with standard formicarium equipment.
Care difficulty
Camponotus quercicola is classified as an intermediate species, mainly because it requires a true winter diapause to thrive. Without a cooling period of two to three months at around 10°C, the queen may stop laying eggs and the colony can gradually decline. Otherwise, day‑to‑day care is comparable to many Camponotus species: they are resilient, not overly sensitive to light or vibrations, and do not need a constant live food supply. They do, however, benefit from a steady source of moisture in their nesting area, as the developing larvae are sensitive to desiccation.
Housing
A formicarium that incorporates natural wood, such as a cork or hardwood insert, is ideal because Camponotus quercicola feels most at home chewing into soft wood to create galleries. Alternatively, a classic plaster or Y‑tong nest with a separate foraging arena works perfectly. Keep the nest area slightly humid (50–70% relative humidity) by moistening the substrate or using a water reservoir, while the foraging arena can be drier. Temperature should be maintained between 22 and 28°C in the active season; a heat cable or mat placed under one part of the nest allows the ants to thermoregulate. Ensure a clean, escape‑proof lid — these ants are good climbers on smooth surfaces.
First days after purchase
Upon receiving your Camponotus quercicola colony, place the formicarium in a quiet, dark location with stable temperature. Let the ants settle for at least 24 hours before offering any food. If the colony is very small (a queen with a few workers), provide a drop of sugar water on a small piece of foil and a tiny insect piece. Observe but do not disturb. Over the first week, gradually adjust humidity and temperature to the recommended range. Avoid bright lights and vibrations near the nest. As the colony grows and workers begin exploring, you can offer a more varied diet and introduce a regular feeding schedule. With patience and a proper hibernation cycle, your Camponotus quercicola will reward you with steady growth and fascinating diurnal (or crepuscular) activity.