Diptera: Cecidomyiidae - gall midge Dasineura helianthemi Photographs on Helianthemum nummularium, Common Rock-rose Hosts: Helianthemum nummularium, oelandicum Leaves at shoot tip become concave, thickened, and often excessively hairy. Each gall contains 2-5 pale-orange larvae. Aceria rosalia also causes galling of shoot tips but gall contains mites. Requires verification and/or rearing

Dasineura helianthemi
Ulwell Gap, Swanage, Dorset. September 2015