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Northern Prairie Wildlife Research Center

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Atlas of North Dakota Butterflies

Dainty Sulphur (Nathalis iole)

  • BND: Dainty Sulphur; Nathalis iole Boisduval, 1836
  • BNA: Dainty Sulphur; Nathalis iole
  • Habitat: Rare late summer stray; roadways, railroad rights of way with bare, often gravelly soil
  • Larval food: Asteracea, including Bidens, Dissodia, Helenium, also including cultivated varieties
  • Adult flight: Occasional stray in late summer; cannot survive freezing; rarely encountered in ND
  • References: Royer 82, Opler & Krizek 79, Scott 210
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