* Contarinia quercina (Rübsaamen, 1890)

Material: VE, Larvik: Aske, 58.994287°N 9.946649°E ± 450m, 25 July 2021, on Quercus robur, 5L, leg. SH, coll. NHMO.

Biology: The white to yellowish larvae develop gregariously in shoots of Quercus spp. ( Fagaceae), causing an irregular rosette of malformed leaves. Bilvoltine; pupation and hibernation in the soil.

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