Lasius niger


SKU: L.nig Category: Tags: ,


Lasius niger

Lasius niger  is a species of Ant found in both the UK and over Europe. This is the most commonly kept ant species for beginners. A very hardy and adaptable species of Lasius. A reasonably fast moving Ant when excited or startled. Which can be aggressive when needs to be in attacking food or protecting the Queen and colony.

The  Black Garden Ant  at first glance appears completely  Black, however if any source of light   hits the Ants the colours can range from Brown to almost Golden in colour.

Workers of  Lasius niger  can reach up to 5mm in length, however the first workers to appear when a colony starts out are smaller measuring around 3mm.

Lasius niger  have four stages of development egg, larva, pupa (cocoon) and adult Ant.  The  Queen Ant  lays very small White eggs. The eggs take about 10 to 12 days to hatch into larva, these resemble small White maggots.   The larvae are first fed by the Queen, but once the first workers arrive, they take over the role of bringing the larva protein feeds, such as chewed up insects. Once fed and grown enough the larva then spins a cocoon around itself (larvae to pupa takes around 10 to 15 days).The Lasius niger pupa takes 15 to 25 days for an adult ant to emerge from the cocoon. When the worker ant first hatches they appear White in colour, however will darken over the course of an hour until it appears Black.

The nest should have both a dry and a moist area. This species of ant can be kept at room temperature, however an additional heat spot would be appreciated.

In nature the  Lasius niger has only one Queen per colony. A well established Queen and colony can number up to 5000 worker ants.

Lasius niger is a very hardy species of ant and a great beginners ant species.

Latin Name:  Lasius niger

English Name: Black garden ant, Common Black garden Ant,

Rearing Difficulty:  (1=Beginner, 5=Expert): 1,  Easy.

Temperature: Arena,  18-28 °C

                             Nest, 21-24 °C

Hibernation: Yes, October to March, 5-8 °C

Humidity: Arena, 30-50%

                      Nest, 50-60%

Diet:  Sugar-water, Insect protein, Honey-water, Flies, Crickets, Cockroaches

Length/Description: Queen, 8-10mm long, Black to light Brown

Length/Description: Workers, 3-5mm long, Black to light Brown

Queen Starting Out: Claustral (without feeding).

Development of Workers: 6-8 weeks.

Nest Suitability:  Ytong / Acrylic / Glass / Soil / Plaster

Minimum Tube/Connector Diameter: 9mm.

Colony Size:  10,000 – 40,000   (5000-6000) workers

Life Span of Queen: 10-15 years

Distribution: UK,  Europe, North Africa, Asia, North America,

Please contact Antsmynala if you no longer wish to keep them and we will arrange for them to be collected from you at no cost.



Additional information

Colony size

Queen + 6-10, Queen + 11-20, Queen + 21-30, Queen + 31-40, Queen + 41-50, Queen + 61-70


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