The overall aim of the Taxo-Fly project is to generate Taxonomic Resources for European hoverflies by identifying and capturing most important taxonomic and other information (ecology, distribution) for the hoverflies of Europe, and making these data available on the web in a well-structured, coherent and consistent way. The taxonomic resources generated within this project will constitute an important basis for future digital (web) tools, e.g. available for use in both European and regionally adapted identification keys important for the EU PoMS. High-quality digital images generated within the project will constitute a new resource of standardized hoverfly images, with diagnostic characters clearly portrayed and indicated. The Core team to generate the taxonomic information has 14 members, and is supported by an external expert team with six members. The background and recent developments of the project will be presented.