Diptera: Cecidomyiidae - gall midge Dasineura odoratae Photographs on Viola odorata, Sweet Violet Host: Viola odorata On one or both sides of leaf the margin is tightly rolled upwards and more hairy than normal. Gall contains gregarious whitish to orange (when mature) larvae. Pupation in white cocoons within gall Similar: D. affinis, widespread on V. canina, reichenbachiana, riviniana. Dasineura violahirtae rare on V. hirta

Dasineura odoratae
Corfe Mullen and Wimborne, Dorset. October 2014, November 2017, February 2018