Glaucopsyche piasus
Glaucopsyche piasus, the arrowhead blue, is a western North American butterfly of the family Lycaenidae. It is a locally common butterfly that favors prairie, open woodland, and woodland edges and trails.

In Felder, 1864
| Arrowhead blue | |
|---|---|
![]()  | |
| Imago in Wayne Co, central Utah | |
| Scientific classification  | |
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Lepidoptera | 
| Family: | Lycaenidae | 
| Genus: | Glaucopsyche | 
| Subgenus: | Glaucopsyche (Glaucopsyche) | 
| Species: | G. piasus  | 
| Binomial name | |
| Glaucopsyche piasus Boisduval, 1852  | |
| Synonyms[1] | |
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Larvae feed on lupine (Lupinus) and milkvetch (Astragalus) species.[2]
References
    
- "Glaucopsyche piasus". Global Biodiversity Information Facility. Retrieved 5 July 2021.
 - "Glaucopsyche piasus". explorer.natureserve.org.
 
External links
    
- Arrowhead Blue, Canadian Biodiversity Information Facility
 
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