Id help - Terellia tussilaginis?

Nick - picture hasn't come through.

Hi - I think this is Terellia tussilaginis - but would be grateful if someone could confirm (I am not sure it there are any very similar species).

Insect was on Burdock near the River Stour in Merley, Dorset yesterday.

many thanks

Nick

I think that looks OK for tussilaginis; at least the other species that are found on burdock look a bit different