@article {1798, title = {A provisional list of the Balkan ants (Hym. Formicidae) and a key to the worker caste. II. Key to the worker caste, including the European species without the Iberian.}, journal = {Mitteilungen der Schweizerischen Entomologischen Gesellschaft}, volume = {60}, year = {1987}, pages = {261{\textendash}293}, author = {Agosti, Donat and Collingwood, Cedric A.} }