The common black ant or black garden ant is either dark brown or black in colour and 3.5-5mm in size. As its name suggests, it’s the most common type of ant seen in the UK. During winter the queen ant will survive in the soil while the rest of the ant colony dies.
The ants will lay their eggs in the spring, hatching in late summer, often near and sometimes in houses. Black ants are omnivorous and have a taste for sugary substances, normally making a nuisance in the kitchen.