Green-veined White Pieris napi sabellicae

Male. (Males have only one spot, or no spot, on upper surface of forewing).
Male. (Males have only one spot, or no spot, on upper surface of forewing).
Female. (Females have two spots on upper surface of forewing)
Female. (Females have two spots on upper surface of forewing)
Green-veined White underside.
Green-veined White underside. "Veins" clearly visible.
Female rejecting the advances of a male.
Female rejecting the advances of a male.
Males taking up minerals from damp earth.
Males taking up minerals from damp earth.
A close-up of the green veins shows they are made from black and white scales, and are therefore really grey.
A close-up of the green veins shows they are made from black and white scales, and are therefore really grey.
Egg
Egg
Larva has single yellow spot around each spiracle, and no yellow doral stripe (c.f. Small White)
Larva has single yellow spot around each spiracle, and no yellow doral stripe (c.f. Small White)
Larva preparing to pupate
Larva preparing to pupate
Close up of the larval solo yellow side spots, and no dorsal yellow stripe (c.f. Small White)
Close up of the larval solo yellow side spots, and no dorsal yellow stripe (c.f. Small White)
Pupa
Pupa
Pupa - adult about to emerge 31 days after the egg was laid
Pupa - adult about to emerge 31 days after the egg was laid
 
Information

Red List status: Least Concern
NERC Act S41: Not listed
Local status: Common, but possibly in decline.
Distributed over whole county.
Size: Medium.
Larval foodplant: Wild crucifers, including Garlic Mustard, Cuckoo-flower and Hedge Mustard.
No. of broods: Two.
Flight time(s): First brood flies late March to late June.
Second brood flies early July to early October.
The second brood is usually more numerous.

Average first date: 31st March
Average last date: 12th October
Winter: Pupa
Habits: Easily confused with Small White in flight, but undersides are clearly different when settled. (See above).
Habitats: May occur anywhere, but prefers damper conditions than Small White.
Distribution: