Neobisium simile (L. Koch, 1873) (Mark G. Telfer et. al. 2020 in press) was found in a quarry (Craig yr Aber woods, Bridgend, Wales) and is thought to have been ‘probably introduced from the Pyrenees or south-western France, possibly with imports of raw materials for the steel industry‘. Back in 1984 specimens posed identification problems being thought to be very similar to N. carpenteri and it was suggested that further material was needed. When further specimens were found in 2016 it was suggested that DNA studies would resolve the issue. Telfer et. al carried out this work and found that the specimens were N. simile. Tefler et. al consider that the species, which has a viable population, was probably introduced fromthe Pyrenees or south-western France, possibly with imports of raw materials for the steel industry, Further information will be forthcoming when the authors’ paper is published.