Green-veined White (Pieris napi)

Family: Pieridae Checklist: 58.008

 
Description
Wing span: 40-52 mm. The Green-veined White is a common butterfly of damp grassland and woodland rides that is often mistaken for the Small White. First-brood males usually have no spots on their upper forewings, whereas second-brood males can have one or two spots. Females have two spots in both broods. This species can be found throughout the British Isles. It prefers damper habitats such as stream and ditch edges, marshes and woodland rides. It can also be seen in gardens.
 
Images (click to enlarge)
Green-veined White ♂ © David Hastings
Green-veined White ♂ underside © David Hastings
Green-veined White ♀ © David Hastings
Green-veined White ♀ underside © David Hastings
Male Male underside Female Female underside
 
Life Cycle
There are usually two broods per year. First-brood adults usually emerge in late April, peaking around the middle of May and tailing off through June. The second brood starts to emerge in early July. However, in good years, the second brood may emerge in late June and give rise to a third brood. It species over-winters as a pupa.
 
Larval Foodplants
The primary larval food plants are Charlock (Sinapis arvensis), Cuckooflower (Cardamine pratensis), Garlic Mustard (Alliaria petiolata), Hedge Mustard (Sisymbrium officinale), Large Bitter-cress (Cardamine hirsuta), Watercress (Nasturtium officinale), Wild Cabbage (Brassica oleracea) and Wild Radish (Raphanus raphanistrum).
 
Nectar Sources
Adults feed primarily on Betony, Bluebell, Bugle, Buttercups, Cuckooflower, Fleabane, Greater Stitchwort, Ragged Robin, Ragwort, Red Campion, Thistles and Vetches.
 
UK Conservation Status
Least Concern
 
Earliest UTB first sighting (since 2004) : 15th March
Mean UTB first sighting (since 2004) : 2nd April
 
 
Distribution and Sites
 

Key
1 sighting 2-9 max seen 10+ max seen
This species is a habitat generalist, so can be found almost anywhere in the UTB region.

 
Related Species
All Species