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Atlas of North Dakota Butterflies

Acmon Blue (Icaricia acmon)


  • BND: Acmon Blue; Icaricia acmon (Westwood, [1851])
  • BNA: Lupine Blue; Plebejus lupini
  • NDC: ICAC
  • Habitat: Exposed flats along upper slopes in badlands, where it patrols and takes nectar at its larval host, Eriogonum flavum
  • Larval food: Eriogonum spp., also reportedly Astragalus, Lupinus
  • Adult flight: Two broods, June and August, the second being synchronous and sympatric with flight of Apodemia mormo
  • References: Royer 110, Ferris & Brown 206, Scott 411
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