In recent years, awareness has risen surrounding the crucial role of insects in providing ecosystem services and on the acute decline of many of them. However, significant gaps in knowledge still remain. In this context, the European Commission has undertaken to fund the European Red List of Grasshoppers, Crickets and Bush- Crickets, which provides the first ever comprehensive assessment of the extinction risk of all Orthoptera species native to Europe. On the basis of the evaluation of 1,082 species, this assessment highlights that 25.7% of Orthoptera species are threatened with extinction in Europe.