Entoma
Green-veined white, Pieris napi, plate

Whites and yellows

Pieris napi

Green-veined white

Its wings look plain white in flight, but on the underside the wing veins are traced in a smudged greenish-grey visible only at rest.

WhereDamp meadows, hedgerows, woodland rides, riversides
Size40 to 52 mm wingspan
WhenApril to September

It resembles other white butterflies but is identified by the dark veining that shows through on the greyish-green underside of the hindwing, a pattern the small white and large white lack.

It favours damp places with lush vegetation, and two broods normally fly each year in much of its range.

Traits

Habitat

Wetland

Colour

White, Green

Active

Day

To people

Harmless

Activity through the year

Often confused with

Small whiteOpen entry ›
Pieris rapae

The small white lacks the green-tinged vein markings on the hindwing underside that the green-veined white always shows.

Questions

Is the Green-veined white dangerous to people?

The Green-veined white is harmless to people.

When can you see the Green-veined white?

The Green-veined white can be seen from April to September, by day.

Plate retouched from a photo by Didier Descouens, CC BY‑SA 4.0, Wikimedia Commons Licence

The plate on this page is shared under the same licence as its source, CC BY-SA.

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Butterflies and moths›Whites and yellows›Pieris

Last updated 2026-09-26. Every entry is checked against published sources.