Dave has sent us this super photo with the following comments:
First walk of the year in the sunshine at Duncliffe Wood on 16/03/2020 and amazed to see a Green-veined White. My girlfriend Agnes saw it first so I can’t take all the credit if it’s a first for the year.
The dark veins on the yellow underside of the hindwings are actually a mottling of black scales that appear green against the yellow background. The first Green-veined White reported to the Dorset BC website last year was on 24/03/2019 so this is 8 days earlier.