Lasius emarginatus

In nature, Lasius emarginatus builds its nests in sun-exposed soil, under stones, in dead wood, or even inside brick walls and pavements in urban settings. They are monogynous, with a single queen leading the colony. Workers show a clear bicolored appearance: a reddish thorax and dark brown or black head and gaster.

Their foraging behavior is aggressive and efficient, and they quickly discover food sources. Colonies can reach sizes of 5,000 to 10,000 workers over time and are known for tight territorial defense when disturbed.

Looking to start an easy and colorful European species? Then Lasius emarginatus is the perfect fit. At Esthetic Ants, we offer healthy, captive-raised colonies ready to thrive in your setup.

Each colony includes:

• A fertile queen

• A group of active workers

• A healthy brood pile (eggs, larvae, pupae)

Our colonies are ideal for educational setups, formicariums, and long-term observation. Buy Lasius emarginatus now at Esthetic Ants and add one of Europe’s most adaptable and active ant species to your collection!

• Temperature & Humidity:

  • Nest: 21–25°C, 50–70% humidity

  • Outworld: 18–28°C, 30–50% humidity
    They require a winter diapause from late October to March at 5–10°C.

• Diet:

  • Sugar water or honey water (1:3 ratio)

  • Insects like fruit flies, mealworms, or small crickets

  • Soft fruits such as apple or banana (occasionally)

• Nest Type:
  Perfect nest options include:

  • Acrylic nests with moisture chambers

  • Ytong or plaster nests

  • Sand-loam setups for natural digging

• Tips:

  • Lasius emarginatus is heat-tolerant but still prefers moderate nest moisture.

  • They are fast and agile, so ensure escape-proof setups.

  • Offer foraging space early on, as workers explore widely.