- BND: Shasta Blue; Icaricia shasta (W. H. Edwards, 1862)
- BNA: Shasta Blue; Plebeius shasta
- NDC: ICSH
- Habitat: Sagelands and rolling prairie, quite rare in ND
- Larval food: Legumes incl. Astragalus, Oxytropis, Lupinus, Trifolium
- Adult flight: One brood, June
- References: Royer 109, Ferris & Brown 208, Scott 410
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