This is an advance notice for the third European Congress on Orthoptera Conservation (ECOCIII) which will be held in Leiden, the Netherlands from 19-22 march 2020. It will be combined with the 16th biannual meeting of the German Society for Orthopterology (DGfO). The venue will be the completely renovated Naturalis Biodiversity Center which by chance in 2020 celebrates its 200-year anniversary. Besides attending an exciting program, extending one's network and meeting old acquaintances, the meeting also offers a unique opportunity to consult and work in the Orthoptera collection of Naturalis for those interested. Please save the date already in your 2020 agenda! Starting in October more information about ECOCIII regarding the program, registration etc. will be posted here. In case of questions please contact the coordination team at ecocIII@naturalis.nl .