Dasineura engstfeldi (Rübsaamen, 1889)

Material: NSY, Gildeskål: Inndyr, Svartdalen, 67.044190°N 14.060473°E ± 6m, 24 July 2022, on Filipendula ulmaria, 5L, leg. HE, coll. NHMO .

Biology and notes: The white, later pink, larvae develop on galled leaves of Filipendula spp. ( Rosaceae). Infected leaves are locally wrinkled and sometimes discolored red. The leaf veins are swollen in the infected parts, and the larvae live on the underside of the leaf, often several together, in the nooks and spaces created by the wrinkles and swollen veins. Univoltine; pupation and hibernation in the soil. The galls that we have found match the description of the galls, but the larvae do not seem to turn pink at maturity, instead remaining white. The species appears to be rather common on Filipendula ulmaria in the northern part of the country. Only one sample has been processed so far, but we have observed the species in several other places.

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