Crematogaster Biroi (ant colony)

🐜 Technical Sheet – Crematogaster biroi

Scientific name: Crematogaster biroi
Genus: Crematogaster
Origin: Southeast Asia (mainly tropical regions)
Size:

• Queen: 7–8 mm
• Workers: 3–5 mm
• Male: 2–3 mm

Coloration:
Brown tones, sometimes with lighter or reddish reflections on the thorax and the heart-shaped gaster — a distinctive trait of the genus.

Colony type:
Polygynous (multiple queens per colony)

Ideal temperature:
24 °C – 28 °C

Humidity:

• Nest: 60–80%
• Foraging area: 50–60%

Diet:
Omnivorous. They feed on sugary liquids (like nectar, honey water, or sugar-based homemade mixes) and small insects for protein intake.

Behavior:
Very active, curious, and fast-moving. They have a strong defensive instinct and often raise their gaster as a warning — a typical behavior of this genus. Once they locate food, they form well-defined foraging trails.

Care difficulty:
Moderate. While not extremely demanding, they require proper humidity and good ventilation. A suitable species for antkeepers with some experience.

Hibernation:
They do not hibernate, but activity may slow down slightly if temperatures drop.

Colony size in nature:
Can reach several thousand individuals.

Growth rate:
Moderate. With optimal conditions and a balanced diet, the colony develops steadily throughout the year.