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Arrowhead Blue
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.
From the article Glaucopsyche piasus on Wikipedia (CC BY-SA), quoted section by section
Description
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 and 1+3⁄8 inches (2.9 and 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 March to July. Larvae feed on lupine (Lupinus) and milkvetch (Astragalus) species. The adults feed on flower nectar.
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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Every page naming Glaucopsyche piasus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 117346.