The species of the genus Eriosoma Leach found in Sweden are described and figured, including two new species. Eriosoma (Schizoneura) anncharlotteae n.sp. causes curling of the leaves of Ulmus carpinifolia and U. procera and the secondary host is Ribes alpinum. E.(S.) sorbiradicis n.sp. has only been found on the roots of the secondary host, Sorbus aucuparia. Keys are given to emigrants, apterous exules and sexuparae.