Rubiaphis altaicus gen. nov., sp. nov. from Rubus idaeus, collected in the Altai Republic, is described. The species is illustrated and biometric data are provided. This aphid genus is closely related to Myzaphis van der Goot, 1913. The taxonomic position of the genus is discussed.
Keywords: Hemiptera, Aphididae, raspberries, The Altai Mountains, new taxa, taxonomy.