Aglais (Nymphalis) milberti

Milbert’s Tortoiseshell
Aglais (Nymphalis) milberti

Milbert's Tortoiseshell Aglais (Nymphalis) milberti. September 26, 2013 at Stratford, Ontario, unknown shrub.
Milbert’s Tortoiseshell Aglais (Nymphalis) milberti. September 26, 2013 at Stratford, Ontario, unknown shrub.

Very rare in south-western Ontario, with a few recorded at Point Pelee, intermittently throughout the years, but it is a permanent resident in central and northern Ontario. They prefer wet areas and marshes. Caterpillars feed on nettles Urtica.

 

 

 

Milbert's Tortoiseshell Aglais (Nymphalis) milberti. September 26, 2013 at Stratford, Ontario, unknown shrub.
Milbert’s Tortoiseshell Aglais (Nymphalis) milberti. September 26, 2013 at Stratford, Ontario, unknown shrub.

While in Stratford waiting to see a play, this one was found in the Shakespeare Garden on an exotic unknown shrub, too high to get a photo of the top side.

Adults prefer sap and rotting fruit, and occasionally nectar from flowers. Females lay a massive number of eggs on the underside of nettle leaves, and like the Mourning Cloak, the caterpillars all stay together when young. They can have up to 3 generations a year. Adults hibernate during the winter.