Shasta blue

Icaricia shasta, the Shasta blue, is a butterfly of the family Lycaenidae. It is found from the northwestern United States to southern Saskatchewan and Alberta.

The wingspan is 20–22 mm. Adults are on wing from June to August.

The larvae feed on Lupinus lyalli, Astragalus spatulatus, Astragalus calycosus, and Trifolium dasphyllum.

Subspecies

There are seven subspecies of Icaricia shasta.

• I. s. charlestonensis <small>Austin, 1980</small>
• I. s. calchas <small>(Behr, 1867)</small>
• I. s. minnehaha <small>(Scudder, 1874)</small>
• I. s. pallidissima <small>(Austin in T. Emmel, 1998)</small>
• I. s. pitkinensis <small>Ferris, 1976</small>
• I. s. platazul <small>Scott, 2006</small>
• I. s. shasta <small>(W. H. Edwards, 1862)</small>

References

External links

• Butterflies and Moths of North America: Shasta blue