* Parallelodiplosis galliperda (F Löw, 1889)

(Figure 24)

Material: VE, Faerder: Saltbukta, Mågerø, 59.15258°N 10.43235°E ± 50m, 7 September 2019, 8L, leg. AF, BOLD: NHMO-ENT-548149, coll. NHMO; Moutmarka, 59.06872°N 10.39833°E ± 50m, 8 September 2019, 6L, leg. AF, BOLD: NHMO-ENT-548150,548151, coll. NHMO .

Biology: The yellow to orange larvae are inquilines in the leaf galls of the wasps Neuroterus albipes (Schenck, 1863) and N. quercusbaccarum (Linnaeus, 1758) ( Hymenoptera: Cynipidae) on Quercus petraea and Q. robur ( Fagaceae). Our records are from galls of N. quercusbaccarum on Quercus sp. The larvae live in the narrow space between the disc-shaped gall of the host and the lower surface of the leaf. Univoltine; pupation and hibernation in the soil.

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