Species account

Grønåret Kålsommerfugl (Pieris napi)    
   Hvidvinger (Pieridae)    GVWH    24841
Green-veined White (gb)   Blanca Verdinervada (es)   Rapsfjäril (se)      Synonyms: Grønåret Kålsværmer (dk)
Measurements:
WS: 41-53mm
Generations:
2-3
Flight period:
JFMAMJJASOND 
SE
Identification:
In Scandinavian region much like Lille Kålsommerfugl (Pieris rapae)[Small White ~ Blanquita de la Col ~ Rovfjäril] but the clearly green-gray powdered underwing veins/ribbons of Green-veined are very obvious and the best way to separate them. However, in second generation the powder look is weaker, though never absent.

Males have a single weak black spot on the upper forewing where the females shows two strong spots. The same goes for rapae.
The black wing tip on the forewing is normally weaker marked than on both rapae and Stor Kålsommerfugl (Pieris brassicae) [Large White ~ Blanca de la Col ~ Kålfjäril]

Similar species:
Life stages:
Distribution:
NW Africa, Europe to Asia. (N America).
Habitat:
Accepts a great variety of habitats, forest clearings, meadows, agricultural fields, mountain meadows, gardens, parks etc.
Behavior:
In flight it shows the same size and flight as rapae, but it is my perception that it gives a more 'sharp' impression, maybe caused by the well-marked ribbons.
Status:
Very common in Denmark and rest of the Nordic countries.
Host plants:
Løgkarse (Alliaria petiolata) [Garlic Mustard ~ Hierba de Ajo ~ Löktrav]
Engkarse (Cardamine pratensis) [Mayflower ~ Agrión de Prado ~ Ängsbräsma]
and other Korsblomster (Brassicaceae) [Crucifers ~ Brasicáceas ~ Korsblommiga växter]
Feeding plants:
Løgkarse (Alliaria petiolata) [Garlic Mustard ~ Hierba de Ajo ~ Löktrav]
Tidsler [Thistles ~ Cardos ~ Tistlar]
and many others, including numerous garden flowers.

Comment:
GVWH
Flies in a third generation in warm summers.

In the Scandinavian mountain region flies a subspecies, bicolorata, which has darker gray scales/powder along the underwing ribbions. And further north along the coast flies another dark subspecies, adalwinda.
Green-veined White 595    (1 photos)
2022-04-23    Kongelundsområdet, Denmark

Imago
Nordskoven.
Tricky photo but the broad veins on the left underwing are obvious.




Green-veined White 607    (2 photos)
2022-05-03    Kongelundsområdet, Denmark

Imago
The most common white in the beginning of May.



Green-veined White 2395    (1 photos)
2023-09-05    Travbaneparken, Denmark

Imago
Det lille Regnvandsbassin.
Unusual perch, but perhaps the dark surface made it look solid, though I don't often see whites sitting on the ground here in Denmark.




Green-veined White 608    (3 photos)
2022-05-03    Kongelundsområdet, Denmark

Imago Han




Green-veined White 1140    (1 photos)
2022-08-17    Kalvebod Fælled, Denmark

Imago Han
Second generation.



Green-veined White 1387    (2 photos)
2023-05-14    Kongelundsområdet, Denmark

Imago Han
Kofoeds Enge.
On Tusindfryd (Bellis perennis) [Common Daisy ~Margarita ~ Tusensköna] and




Green-veined White 2219    (1 photos)
2023-08-17    Krebseklo-vandhullet/kirkegård (Hørsholm), Denmark

Imago Han




Green-veined White 923    (2 photos)
2022-07-11    Tårnby Kommune (Amager), Denmark

Imago Hun
My mother's vegetable and flower garden.



Green-veined White 1139    (1 photos)
2022-08-17    Kalvebod Fælled, Denmark

Imago Hun
It looks like it has two black spots on the upper side of the forewing, which makes it a female. Second generation.



Green-veined White 1388    (3 photos)
2023-05-14    Kongelundsområdet, Denmark

Imago Hun
Kofoeds Enge.
Engelskgræs (Armeria maritima) [Thrift ~ Clavelina de Mar ~ Trift]




Green-veined White 1957    (1 photos)
2023-05-21    Kongelundsområdet, Denmark

Imago Hun




Green-veined White 1812    (3 photos)
2023-07-18    Kongelundsområdet, Denmark

Imago Hun
Skovfogedmarken.
The wing tip markings are diagnostic here, though this animal showed a very limited amount of ribbon powder on the underside.

On Blackberry [Brombær (Armensk)]