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.[citation needed]

Glaucopsyche piasus
Imago in Wayne Co, central Utah

Apparently Secure  (NatureServe)[1]
Scientific classification Edit this classification
Domain: Eukaryota
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[2]
  • Lycaena catalina Reakirt, 1866
In Felder, 1864

Description

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This species has checkered fringes. The upper-side of males are violet blue with a wide border, females are duller. The underside is gray with many small black spots. The hindwing has a post-median band of white arrowheads pointing inwards. The wingspan is between 1 1/8 inches to 1 3/8 inches wide (2.9 - 3.5 cm). The males patrol during the day near host plants, while females lay eggs on flower buds of the host plant. There is one brood from between March to July. Larvae feed on lupine (Lupinus) and milkvetch (Astragalus) species. The adults feed on flower nectar.[3][4]

References

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  1. ^ "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 2023-12-14.
  2. ^ "Glaucopsyche piasus". Global Biodiversity Information Facility. Retrieved 5 July 2021.
  3. ^ "Glaucopsyche piasus". explorer.natureserve.org.
  4. ^ "Arrowhead Blue Glaucopsyche piasus (Boisduval, 1852) | Butterflies and Moths of North America". www.butterfliesandmoths.org. Retrieved 2023-12-14.
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