| Latin Name: | Lasius (Cautolasius) flavus | |
| Trivialname: | Yellow Meadow Ant | |
| Taxonomy: | Subfamily: Formicinae Tribe: Lasiini | |
| Keeping Level: | (1) very easy in keeping | |
| Distribiution: | all above Europe, moderate Asia | |
| Habitate: | prefers sunexposed grassland | |
| Colonyform: | monogyn often oligogyn sometimes polygyn | |
| Queen: | Size: 7 – 8mm Colour: yellow | |
| Worker: | Size: 2 – 4mm Colour: yellow | |
| Soldier: | not present | |
| Males: | Size: 3 – 4mm Colour: yellow | |
| Nutrion: | Honeywater and insects e.g. Dipterans like Flies or Mosqitos | |
| Airhumidity: | Arena: 30 – 50% Nestpart: 60 – 70% | |
| Temperature: | Arena: 18 – 28°C Nestpart: 21 – 24°C | |
| Hibernation: | yes, from end of October until end of March at 5 – 8°C | |
| Nestform: | Build their nest in soil, under stones | |
| Kind of Formicaria: | Farm, Farmbasin, Basin, Framebasin, Island, Acrylcylinder, Digfix | |
| Formicaria size: | Size: S – M | |
| Substrate: | Farm: Sand-Loam Arena: Sand-Loam | |
| Planting: | similar to grasslandareas moss, grass and other plants | |
| Decoration: | Branches, Roots, Treeneedels, stones | |
| Description: | Lasius flavus is a complete subterranean ant species that harvests honeydew from aphids | |
| Development: | matingflight: on warm days july to begin of september founding: claustral (without feeding), often Pleometrosis with up to 20 Queens and Adoption colonysize: up to 40.000 Individuals |
|
| Quantity: | one fertilized queen with workers (see selection); brood (depending on the season and development) | |
| Weblinks: | – Forum |






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