Thief Ant

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Identification

  • Colour Yellow to light brown
  • Size Workers are 1.3 mm to 1.8 mm long, queens are 6 mm long
  • Description Thief ants are tiny ants that have two nodes between the thorax and the abdomen. They are easily confused with pharaoh ants and the important distinguishing feature is the antenna that have 10 segments ending in a 2-segmented club.

General Facts

Why do I have thief ants?

Thief ants, also called grease ants, steal food, larvae, and pupae from neighbouring colonies, as well as foraging stored food from your kitchen.

They can live almost anywhere inside people’s homes, in the walls or under the floorboards. When outdoors, they can build nests under rocks and in exposed soil or logs.

When all else fails, they can move into another colony. Thief ants often build tunnels that lead to another ant colony for a reliable and steady source of food.

How worried should I be about thief ants?

Thief ants can break into sealed food containers to access and contaminate stored food, but are not attracted to sweet foods and are resistant to conventional ant traps. They also appear to be resistant to most insecticides.

A professional pest control service will be able to tackle a thief ant infestation effectively, by following their trails back to their nesting location, then treating the nest appropriately.

How can I prevent thief ants invading?

Remove grease and debris underneath and around appliances, Limit food preparation and dining to one or two areas, Seal all gaps and cracks in the baseboards, window and door frames, Check and repair all pipe and faucet leaks

Other pests related to Thief Ant

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