Diptera: Cecidomyiidae - gall midge Dasineura rosae Photographs on Rosa canina agg, Dog-rose Hosts: Rosa arvensis, canina, corymbifera, gallica, rubiginosa, tomentosa, villosa Leaflet thickened and folded upwards along main vein. Two or more generations of gregarious larvae, white becoming yellowish-orange. Pupation occurs in the ground. Larvae remaining white at maturity may belong to Macrolabis luceti (an iniquiline). Parasitoids and predators include Lestodiplosis rosarum and Torymus microstigma

Dasineura rosae
Corfe Mullen, Dorset. August 2017. Mature larvae Badbury Rings July 2016