Iteomyia capreae (Winnertz, 1853)

(Figure 39 A–B)

Material: AK, Oslo: Ellingsrud, Kjerringmyr, 59.925967°N 10.913982°E ± 20m, 4 September 2022, on Salix aurita, L, leg. HE, coll. NHMO; Nittedal: Hakadal, Burås, 60.114236°N 10.817595°E ± 7m, 9 July 2020, on Salix caprea, L, leg. HE, coll. NHMO; NTI, Levanger: Faetta, 63.564802°N 10.939929°E ± 5m, 14 July 2020, on Salix caprea, L, leg. HE, coll. NHMO; NSI, Vefsn: Mosjøen, Kippermoen, 65.834005°N 13.213303°E ± 10m, 27 July 2020, on Salix caprea, L, leg. HE, coll. NHMO .

Biology: The white, later orange or red larvae develop in leaf galls on a wide range of Salix spp. ( Salicaceae). Each larva develops in a globular, up to 2 mm wide gall which protrudes equally on both sides of the leaf and has a circular exit on the underside. The galls are usually spread out over the surface of the leaf and for the most part do not coalesce. Univoltine; pupation and hibernation in the soil.

Distribution: Widespread Palearctic, including Norway, Sweden, Denmark and Finland.