| Family | Pieridae |
|---|---|
| Subfamily | Coliadinae |
| Genus | Colias |
| Species | crocea |
| Authority | (Geoffroy, 1785) |
| English Name | Clouded Yellow |
| European Red List 2010 | Least Concern (LC) |
|---|---|
| EU 27 Red List 2010 | Least Concern (LC) |
| European Red List 2025 | Least Concern (LC) |
| EU 27 Red List 2025 | Least Concern (LC) |
| Habitats Directive | |
| Bern Convention | |
| CITES |
In good summers, the Clouded Yellow is a very fast flyer and can be seen practically over the whole of Europe, often on fields of clover or lucerne, or other flower-rich vegetations. It lays its eggs one by one, on the leaves of such leguminous plants as Lucerne (Medicago sativa), clovers (Trifolium spp.), and vetches (Vicia spp.). It pupates, suspended in a silken girdle on the foodplant. In the south, it usually passes the winter as a caterpillar. In the north, because it cannot tolerate the cold, it only appears as a summer migrant, recolonizing from the south. This species has four to six broods a year.
Albania / Andorra / Austria (Regular Migrant) / Belarus (Irregular Vagrant) / Belgium (Regular Migrant) / Belgium: Flanders (Regular Migrant) / Belgium: Wallonia (Regular Migrant) / Bosnia and Herzegovina (Regular Migrant) / Bulgaria / Croatia / Cyprus / Czechia (Regular Migrant) / Denmark (Regular Migrant) / Estonia (Irregular Vagrant) / Finland (Irregular Vagrant) / France / France: Mainland / France: Corsica / Germany (Regular Migrant) / Greece / Greece: Mainland / Greece: East Aegean Islands / Greece: Kirti (Crete) / Holy See (Vatican City State) / Hungary (Regular Migrant) / Ireland (Regular Migrant) / Italy / Italy: Mainland / Italy: Sardinia / Italy: Sicily / Latvia (Regular Migrant) / Liechtenstein (Regular Migrant) / Lithuania (Irregular Vagrant) / Luxembourg (Regular Migrant) / Monaco / North Macedonia / Malta / Moldova / Montenegro / Netherlands (Regular Migrant) / Norway (Irregular Vagrant) / Poland (Regular Migrant) / Portugal / Portugal: Mainland / Portugal: Azores / Portugal: Madeira Islands / Romania / European Russia / San Marino / Serbia / Serbia: Serbia / Serbia: Kosovo / Slovakia (Regular Migrant) / Slovenia / Spain / Spain: Mainland / Spain: Canary Islands / Spain: Balearic Islands / Spain: Sp. North African Territories / Sweden (Irregular Vagrant) / Switzerland (Regular Migrant) / European Türkiye / Ukraine / United Kingdom (Regular Migrant) / United Kingdom: Great Britain (Regular Migrant) / United Kingdom: Northern Ireland (Regular Migrant) / United Kingdom: Isle of Man (Regular Migrant) / United Kingdom: Guernsey (Regular Migrant) / United Kingdom: Jersey (Regular Migrant) / United Kingdom: Gibraltar /