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Northern Prairie Wildlife Research Center

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Atlas of North Dakota Butterflies

Afranius Dusky Wing (Erynnis afranius)

  • BND: Afranius Dusky Wing; Erynnis afranius (Lintner, 1878)
  • BNA: Afranius Duskywing; Erynnis afranius
  • Habitat: Aspen woodlands; widespread in western counties
  • Larval food: Thermopsis rhombifolia, probably other legumes
  • Adult flight: Two broods, in May and July
  • References: Royer 19, Ferris & Brown 79, Scott 493
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