Bolton, B. 2005. Key to British Myrmica species (workers). BWARS Newsletter Spring 2005:12-14. PDF

Phillips, A. L.; Attewell, P. J. 2011. An occurrence of Lasius sabularum (Bondroit, 1918) and Lasius umbratus (Nylander, 1846) within the same nest in Lincolnshire, England. BWARS Newsletter Autumn 2011:22-24. PDF