Diptera: Cecidomyiidae - gall midge Dasineura crataegi Photographs on Crataegus monogyna, Hawthorn Hosts: Crataegus coccinea, laevigata, monogyna Terminal shoot distorted, the deformed leaves with small red or green projections. Bivoltine, the orange-red larvae pupating in gall or the soil. Old galls remain visible during winter (lowest photograph).

Dasineura crataegi
Badbury Rings, Dorset. August 2017, January 2018