Green-veined White (Pieris napi)
Green-veined Whites are widespread and quite frequent visitors to garden flowers but much favour damp areas where the larval foodplants Cuckooflower and Watercress grow. Eggs are also laid on Garlic Mustard and Hedge Mustard.
In flight they are easily confused with Small Whites, especially in the spring brood where the wing markings are less pronounced. There are two adult broods, the first on the wing from April to June and the second from July to September
Images L-R: male; female, underside
Fight period: April to September in two broods