EN
During a survey conducted in Russia on the Kola Peninsula; 11 eriophyoid species were collected from grasses. Five are new to science: Aceria kolae sp. nov. from Phalaris arundinacea, Aculodes stoloniferae sp. nov. from Agrostis stolonifera, Aculodes neglectivagrans sp. nov. from Calamagrostis neglecta, Aculus hibinicus sp. nov. from Anthoxanthum odoratum and Tegolophus moliniae sp. nov. from Molinia coerulea. Herein, adults of both sexes and some juvenile stages are illustrated and described. A supplementary description of Aculodes capillarisi Skoracka is given. New host plants are Melica nutans and Phalaris arundinacea for Abacarus spodiopogoni Sukhareva, Festuca rubra arenaria for Abacarus hystrix (Nalepa), Agrostis stolonifera stolonifera for A. capillarisi, Agrostis stolonifera straminea for Aculodes dubius (Nalepa), Calamagrostis purpurea phragmitoides for Aculodes mckenziei (Keifer).