* Drisina glutinosa Giard, 1893 (Figure 19)

Material: AK, Oslo: Gressholmen, 59.883930°N 10.720102°E ± 50m, 1 July 2020, L, leg. HE, coll. NHMO; Bleikøya, 59.888567°N 10.735658°E ± 5m, 3 July 2020, L, leg. HE & TS, coll. NHMO; Lørenskog: Røykås, Mølla, 59.917868°N 10.917558°E ± 20m, 29 July 2021, L, leg. HE, coll. NHMO; 12 September 2021, L, leg. HE, coll. NHMO.

Biology and notes: The white to yellow larvae produce yellow blotch galls on the leaves of Acer spp. ( Sapindaceae). Our records are from A. platanoides . Each larva hangs suspended in a drop of liquid in a shallow depression on the underside of the leaf. Univoltine; pupation and hibernation in the soil. The species is redescribed in Skuhravá & Skuhravý (1986).

Distribution: Widespread in Europe including Norway and Denmark.