title: A hitherto unknown ethological factor in the ant Tetramorium impurum (Myrmicinae).
abstract: In Tetramorium impurum, an ethological factor can be found on workers' last visible abdominal sternite. For a short time, it attracts ants, increases their linear speed and enhances the efficiency of the trail pheromone. This factor is not colony-specific but may play a role in the foraging and recruiting systems of the species.
authors.affiliation: Laboratoire de Biologie Animale et Cellulaire, Faculté des Sciences, Université Libre de Bruxelles, 50 Avenue F. Roosevelt, 1050 Bruxelles, Belgium.
authors.forename: M C
authors.initials: MC
authors.lastname: Cammaerts
authors.affiliation: Laboratoire de Biologie Animale et Cellulaire, Faculté des Sciences, Université Libre de Bruxelles, 50 Avenue F. Roosevelt, 1050 Bruxelles, Belgium.
authors.forename: J C
authors.initials: JC
authors.lastname: Verhaeghe
authors.affiliation: Laboratoire de Biologie Animale et Cellulaire, Faculté des Sciences, Université Libre de Bruxelles, 50 Avenue F. Roosevelt, 1050 Bruxelles, Belgium.
authors.forename: R
authors.initials: R
authors.lastname: Cammaerts
authors.affiliation: Laboratoire de Biologie Animale et Cellulaire, Faculté des Sciences, Université Libre de Bruxelles, 50 Avenue F. Roosevelt, 1050 Bruxelles, Belgium.
authors.forename: R
authors.initials: R
authors.lastname: Lesseux