Rabdophaga rosariella (Kieffer, 1897)

Material: AK, Raelingen: Purkeryggen, 59.908902°N 11.046131°E ± 20m, 5 April 2021, 1L2I, leg. HE, coll. NHMO; Lillestrøm: Leirsund, Kopperud, 59.978501°N 11.152514°E ± 5m, 15 April 2021, 2L2P7F, leg. HE & TS, coll. NHMO.

Biology: The orange larva develops in lateral buds on Salix aurita and S. cinerea ( Salicaceae). Our records are from S. aurita . The infected bud develops into a miniature rosette gall. Univoltine. The larva hibernates in the gall and pupates there in the spring. The larva lacks the sternal spatula, which is unusual among Rabdophaga .

Distribution: Widespread in Europe. In Fennoscandia only known from Norway.