Genus
Pieris (Garden whites)
Pieris marginalis sequoia. Photo: (c) Bill Rodstrom, some rights reserved (CC BY-NC)
Pieris, the whites or garden whites, is a widespread now almost cosmopolitan genus of butterflies of the family Pieridae. The highest species diversity is in the Palearctic. Many species of this genus have caterpillars which feed on cabbage and other members of the Brassicaceae. The chemical basis of this association with a certain plant group has been studied for over 100 years, and is now known to occur via a number of biochemical adaptations to chemicals…
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