#MilbertsTortoiseshell
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adirondacknature.bsky.social
For Rina’s @rina2012.bsky.social #ButterflyWeek: a Milbert's Tortoiseshell. wildadirondacks.org/adirondack-b...

#MilbertsTortoiseshell #wildlife #eastcoastkin #Adirondacks #ADK #butterflies #AdirondackButterflies #wildlife #AdirondackMountains #ECK #nature #thelittlethings
A medium-sized dark brown and orange butterfly is perched on some low vegetation. This is a Milbert's Tortoiseshell, a member of the Brushfoot (Nymphalidae) family. The upper side of the Milbert's Tortoiseshell is bright orange and deep chocolate brown. From below (the ventral surface), the wings are dark purplish brown, with a wide tan marginal band. The range of Milbert's Tortoiseshells extend from southern Alaska east to Newfoundland and West Virginia and south to California, Nevada, and New Mexico. Their range includes all of the western US and the northeastern US, as well as the Canadian provinces south of the tundra. Milbert's Tortoiseshells fly in the Adirondack region intermittently throughout the summer, from June through late September and very early October.
April 18, 2026 at 8:29 AM