Large white  (Pieris brassicae)

Learn about the scientific name of this species and how it fits into the tree of life at Nature Navigator.

Biology

Typically, two generations are produced each year (3). The first brood of adults emerges in spring and flies until April. A second, larger brood of adults appears in July (2), and in particularly warm years, a third brood may occasionally occur (2). The eggs are laid in batches, on leaves of the foodplants (2), hatching after around a week (3). In their early stages, the caterpillars live in groups (2), and can be extremely damaging, reducing the foodplant to a mere skeleton (3). They become solitary later on in life (2), and are very distasteful to birds because they consume mustard oils from their diet (2); their bright colouring advertises this fact, protecting the caterpillars from attack (3). Members of the broods produced later in the year hibernate through the winter as a white pupa(2) attached to walls, fences, tree trunks and occasionally the foodplant (3).

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