* Rhopalomyia millefolii (Löw, 1850)

Material: VE, Larvik: Stavern, Doktorodden, 58.98835°N 10.03401°E ± 50m, 14 October 2019, on Achillea millefolium, 5L, leg. AF, BOLD: NHMO-ENT-548154, coll. NHMO .

Biology: The yellow larvae develop singly in small, bud-like galls on the stems, leaves and capitula of Achillea spp. ( Asteraceae). Multivoltine. Pupation and hibernation in the gall.

Distribution: Widespread in Europe including Norway, Sweden, Denmark and Finland. Georgia, Egypt and India.