An ant species new to Britain Tapinoma pygmaeum (Dufour 1857) has been found in Royston Herts. They seem to be thriving and have several nests with many queens in a private garden and have also been seen in two other gardens with one being 200m away. The resident, a professional gardener, recognised some very small black ants in his garden as something special about 5 years ago. It was only when he posted some photos and notes on the UK Bees, Wasps and Ants FaceBook page that interest was piqued.