Rabdophaga marginemtorquens (Bremi, 1847)

Material: STI, Røros: Killingdalen, Sjursvollen, 62.750150°N 11.431276°E ± 3m, 29 July 2020, on Salix lapponum, LMF, leg. HE , coll. NHMO.

Biology: The yellowish to orange larvae develop gregariously in downward leaf rolls on a range of Salix spp. ( Salicaceae). The leaf rolls are often miscolored red. Bi- or multivoltine. Pupation in the gall.

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