Reptoria

Yellow meadow ant (Lasius flavus)

Yellow meadow ant (Lasius flavus), typical appearance of the species

Invertebrates · Difficulty: Beginner

Key facts and care guidance for Yellow meadow ant (Lasius flavus) (origin: Europe). Adult size around worker 2–4 mm, queen 7–9 mm. Life expectancy queen up to 20 years. The values below are carefully researched guidance.

Short answers

Yellow meadow ant: How big does the enclosure need to be?

Nest from 10×10 cm plus a foraging area from 20×20 cm.

Yellow meadow ant: What temperature does it need?

Daytime 20–24 °C, at night room temperature is enough.

Yellow meadow ant: Does it need UVB lighting?

UVB: Not required.

Yellow meadow ant: How long do they live?

Life expectancy: queen up to 20 years.

Yellow meadow ant: Is it suitable for beginners?

Yes – it is considered suitable for beginners (difficulty: Beginner).

Climate

Daytime temperature
20–24 °C
Night temperature
room temperature is enough
Humidity
nest 60–80 %, foraging area 40–60 %
UVB
Not required

Enclosure

Minimum size
nest from 10×10 cm plus a foraging area from 20×20 cm
Substrate
An earth nest or aerated concrete, kept nicely damp

Feeding

Food
Mostly sugar water, few insects
Feeding interval
sugar always available, insects 1–2×/week

Key facts

Adult size
worker 2–4 mm, queen 7–9 mm
Life expectancy
queen up to 20 years
Origin
Europe
Protection status
—
Brumation
Essential: October to March at 5–8 °C
Cohabitation
Colony per enclosure. Usually monogynous once established, even though several queens can found together. These animals naturally live in groups. Never combine two colonies - unfamiliar animals are not readily accepted.

Notes

It lives almost entirely underground — you see little of it. Anyone looking for something to watch is better served by Lasius niger.

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Related species

All species in the care wiki →

What you need to start

To keep Yellow meadow ant (Lasius flavus) you typically need: a suitable enclosure (nest from 10×10 cm plus a foraging area from 20×20 cm), substrate (An earth nest or aerated concrete, kept nicely damp), a heat source with a thermostat, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.

The complete, interactive care database is in the Reptoria app.

Last updated: 9 October 2026 · Editor: Reptoria editorial team · Sources include: https://de.wikipedia.org/wiki/Gelbe_Wiesenameise, https://en.wikipedia.org/wiki/Lasius_flavus

All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).