The relations between six hundred people interested in dragonflies and scattered over more than fifty countries throughout the Globe, are like a wide mazed network of thin blood vessels That some of these have grown to become powerful veins through which flows a rich stream of scientific information, has inspired a small group of workers to try to create a structure of wider scope – to the benefit of all involved. On October 22-23, 1971, the First European Symposium on Odonatology, held in Ghent, Belgium, has given birth to the SOCIETAS INTERNA TIONALIS ODONATOLOGICA, with the aim of perpetuating contacts among workers all over the World and promoting research by rapid diffusion of information.