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Santa Barbara Field Guides - Butterflies

     Nymphalis milberti
     Milbert's Tortoiseshell


Size: Wingspread 1.75-1.5 in.
Recognition: A distinctive dark Tortoiseshell, with brown wing bases and edges separated by wide golden orange band; underside a cryptic two-tone mottled brown.
Flight period: Adults are active mid-spring to fall, passing through two generations during this time.
Hostplants: The larva of Milbert's Tortoiseshell feeds on a variety of nettles (Urtica species - Urticaceae).
Habitat: Typically seen in moist upland areas, especially riparian areas and montane meadows.
Distribution: Occurs throughout the western U.S. and southern Canada; this species has not been definitely recorded in Santa Barbara County, though there are records in all surrounding counties. If here it will likely be found in our mountainous backcountry.

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