Butterflies of Rocky Mountain National Park

All butterflies known to occur in Rocky Mountain National Park, according to Oppler, Bray, and Simpson (2012) on the NPS website.

All 142

Silvery Blue ¹
Glaucopsyche lygdamus

Arrowhead Blue ²
Glaucopsyche piasus

Ancilla Blue ³
Euphilotes ancilla

Edited by Nathan Grosse, some rights reserved (CC BY-SA)

Photo Credits

1. (c) Brad Smith, some rights reserved (CC BY-NC)
2. (c) Bill Bouton, some rights reserved (CC BY-NC-ND)
3. (c) Pacific Southwest Region U.S. Fish and Wildlife Service, some rights reserved (CC BY)

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