Butterfly: Milbert's Tortoiseshell

Milbert's Tortoiseshell Butterfly (Aglais milberti)
Location:  Rocky Mountain National Park, Colorado

On an early Spring day, we walked the trail around the perimeter of Sprague Lake in Rocky Mountain National Park.  At a point where a boardwalk section of the trail crosses over a marshy area, we paused to take in the view.  Fortunately I looked down just in time to see this pretty butterfly land on some vegetation just below the boardwalk.  It is a Milbert's Tortoiseshell (Aglais milberti), a member of the Nymphalidae family.

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