Tyler, G. 2010. Variability in colour, metallic lustre, and body size of <i>Carabus arvensis</i> Herbst, 1784 (Coleoptera: Carabidae) in relation to habitat properties. Entomologica Fennica. 21, 2 (Jun. 2010), 90–96. DOI:https://doi.org/10.33338/ef.84514.