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Northern Prairie Wildlife Research Center

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Atlas of North Dakota Butterflies

Western White (Pontia occidentalis)


  • BND: Western White; Pontia occidentalis (Reakirt, 1866)
  • BNA: Western White; Pontia occidentalis
  • NDC: POOC
  • Habitat: Open prairie, especially on hilltops
  • Larval food: Cruciferae, incl. Lepidium, Arabis, Sisymbrium
  • Adult flight: Two broods, May, July
  • References: Royer 71, Ferris & Brown 150, Scott 222
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