* Contarinia viburnorum Kieffer, 1913

Material: TEY, Porsgrunn: Åsstranda, 59.0946592°N 9.647405°E ± 250m, 16 June 2019, L, leg. SH, BOLD: NHMO-ENT-548099, coll. NHMO; NSY, Gildeskål: Sund, 67.073029°N 14.059955°E ± 5m, 20 July 2019, L, leg. HE, BOLD: NHMO-ENT-547977, coll. NHMO; 7 July 2021, L, leg. HE, coll. NHMO; 15 July 2022, L, leg. HE, coll. NHMO.

Biology: The white to sulphur yellow larvae develop gregariously in flowers of Viburnum spp. ( Viburnaceae). Our records are all from Viburnum opulus . Infected flowers become swollen and do not open. Univoltine; pupation and hibernation in the soil.

Distribution: Widespread in Europe including Norway, Sweden and Denmark.