Milbert's Tortoiseshell (Butterflies of Fundy National Park of Canada / Les papillons du parc national du Canada Fundy)

Milbert's Tortoiseshell

Aglais milberti

Summary ⁶

Milbert's Tortoiseshell (Aglais milberti), also known as the Fire-rim Tortoiseshell, is the only species of Aglais that occurs in North America.

General description ⁷

The solid black wing bases edged with bright yellow and orange are unmistakable. Our populations are the nominate subspecies. Recent work by Nylin et al. (2001) shows that Milbert's Tortoiseshell is more appropriately placed in the genus Aglais.

Distribution ⁸

Alaska south to California and New Mexico, east to New England and Newfoundland (Layberry et al. 1998, Opler 1999).

Habitat ⁹

Found in many habitats, from prairie coulees to boreal forests and mountain tops.

Migration ¹⁰

Non-Migrant: No. All populations of this species make significant seasonal migrations.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

Flowering plants visited by nymphalis milberti in illinois ¹¹

Nymphalis milberti Godart: Nymphalidae, Lepidoptera
(observations are from Reed and Graenicher; this butterfly is Milbert's Tortoiseshell)

Asteraceae: Aster ontarionis sn (Re); Salicaceae: Salix discolor unsp sn
Insect activities:
sn = sucks nectar

Scientific observers:
(Gr) = S. Graenicher
(Re) = Catherine Reed

Behaviour ¹²

Adults feed on flower nectar and sometimes sap. Males perch for females (Scott, 1986).

Conservation status ¹³

Not of concern.

Threats ¹⁴

Degree of Threat: D : Unthreatened throughout its range, communities may be threatened in minor portions of the range or degree of variation falls within natural variation

Taxonomy ¹⁵

Comments: Opler and Warren's arrangement of Nymphalis, Roddia and Aglais follows Nylin et al. (2001).

Sources and Credits

(c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA), http://www.flickr.com/photos/7457894@N04/651606258
(c) JerryFriedman, some rights reserved (CC BY-SA), https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/Aglais_milberti1.jpg/460px-Aglais_milberti1.jpg
(c) Museum of Comparative Zoology, Harvard University, some rights reserved (CC BY-NC-SA), https://mczbase.mcz.harvard.edu/specimen_images/ent-lepidoptera/images/2010_02_16/IMG_032046.JPG
(c) Museum of Comparative Zoology, Harvard University, some rights reserved (CC BY-NC-SA), https://mczbase.mcz.harvard.edu/specimen_images/ent-lepidoptera/images/2010_02_16/IMG_032051.JPG
(c) Museum of Comparative Zoology, Harvard University, some rights reserved (CC BY-NC-SA), https://mczbase.mcz.harvard.edu/specimen_images/ent-lepidoptera/images/2010_02_16/IMG_032058.JPG
(c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Aglais_milberti
(c) University of Alberta Museums, some rights reserved (CC BY-NC), http://eol.org/data_objects/31887629
(c) University of Alberta Museums, some rights reserved (CC BY-NC), http://eol.org/data_objects/31887628
(c) University of Alberta Museums, some rights reserved (CC BY-NC), http://eol.org/data_objects/31887630
(c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/28807215
(c) John Hilty, some rights reserved (CC BY-NC), http://eol.org/data_objects/32697737
(c) Leslie Ries, some rights reserved (CC BY), http://eol.org/data_objects/20604892
(c) University of Alberta Museums, some rights reserved (CC BY-NC), http://eol.org/data_objects/31887626
(c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/28807209
(c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/28807204

More Info

Range Map

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