* Monodiplosis liebeli (Kieffer, 1889)

(Figure 30)

Material: TEY, Nome: Ulefoss, Klovdal, 59.236580°N 9.378267°E ± 150m, 17 June 2019, L, leg. SH, BOLD: NHMO-ENT-548102, coll. NHMO; VE, Larvik: Stavern, Rakke, 58.980422°N 10.033271°E ± 5m, 18 June 2021, 2L3F, leg. HE & TS, coll. NHMO .

Biology: The pale orange larvae live as inquilines in the galls of Macrodiplosis pustularis and M. roboris on the leaves of Quercus petraea and Q. robur ( Fagaceae). Our records are from the galls of M. pustularis on Q. robur . Univoltine; pupation and hibernation in the soil.

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