Invertebrate specialists from across Europe met in Cardiff 5-9 September 2003 to discuss conservation action for marine, freshwater and terrestrial invertebrates under the title of Red Lists for Invertebrates.  Three consecutive meetings looked at different aspects of this vast topic.  The Bern Group of Experts on Conservation of Invertebrates, the European Invertebrate Survey and the IUCN European Invertebrate Specialists Group each held business meetings.  Most delegates also attended a one day colloquium on the topic of Red Data Listing at different spatial scales, which provided interesting examples of different approaches that have been proposed for a variety of taxa.