Acknowledgements

We are much obliged to all colleagues, who helped us providing references and information on the distribution of the spiders in Bulgaria. A special thank goes to Stanislav Abadjiev (lepidopterologist, NMNHS) who arranged the new version of the site. We are very grateful also to Peter van Helsdingen, Wolfgang Nentwig and collaborators and to Norman Platnick for making available to all arachnologists the websites ‘Fauna Europaea’, ‘Spiders of Europe’ and ‘The World Spider Catalog’.