TL: USA, California, Rocky Mountains
Similar species
38-53 mm
Regional distr. - legend
- Local names
-
Language Vernacular name 
EnglishWestern White 
FrançaisPiéride de l'Ouest
- Primary hostplants
-
Family Latin name Vernacular name Brassicaceae Anelsonia eurycarpa Daggerpod Brassicaceae Arabis Rockcress Brassicaceae Athysanus Brassicaceae Barbarea Winter cress Brassicaceae Boechera Rockcress Brassicaceae Brassica Cabbage Brassicaceae Caulanthus Jewelflowers Brassicaceae Chorispora Purple mustard Brassicaceae Descurainia Tansymustards Brassicaceae Draba Whitlow-grasses Brassicaceae Lepidium Pepperwort Brassicaceae Noccaea caerulescens Alpine penny-cress Brassicaceae Phoenicaulis Wallflower phoenicaulis
- Synonyms and other combinations
-
Latin name Author Pieris occidentalis Reakirt, 1866
- Links
-
Language Website Authors Butterflies and Moths of North America Butterflies of America A.Warren, K.Davis, M.Stangeland 
Lepiforum e. V. North American Moth Photographers Group
Scanning the QR code below automatically opens the description page for this species. Placing this code on a specimen label, poster, or museum display board provides visitors with quick and easy access to full species details directly on their smartphones.
