Xanthorhoe fluctuata (Linnaeus, 1758)

Host plants:
The caterpillars live on Brassicaceae, particularly Alliaria petiolata. On my balcony in Schwäbisch Gmünd, I found several caterpillars on capuchin cress (Tropaeoleum) in June 2011, which is therefore used as in the Cabbage Whites due to their similar ingredients.

Habitat:
Xanthorhoe fluctuata inhabits forests, shrubs, gardens and other places with the presence of suitable larval host plant.

Life cycle:
The pupa hibernates and the moths fly in two or three generations from late March to early October (peak in May and July/August). The caterpillars are found from May to October (peak in June and September).

Remarks:
The quite widespread and less demanding species is widespread Holarctic (Europe, temperate Asia, North America).