Mourning Cloak
Nymphalis antiopa (Linnaeus, 1758)

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Rock Canyon, April 29, 2006

Butterfield Canyon - from larvae located 26 July 2009

Photo Details - ©Nicky Davis
Rock Canyon, Utah County, Utah,  April 29, 2006
1. ventral view of a worn adult that has over-wintered as an adult butterfly


2.  On 26 July 2009 I located some 5th instar antiopa on willows up Butterfield Canyon, Salt Lake County, Utah
GPS 40°29' 73" N 111°57'26" W.
Elevation 4470 feet

Nymphalis antiopa larvae are gregarious in that they like to stay near each other to feed and rest. They were in a sort of loose ball on the willow when they were located.   These larvae  used  a defensive "head-bobbing" movement when they were disturbed, presumably to keep flies and other insects from parasitizing them.  It seemed as if they were at a concert just nodding their heads  to the music.

#1 pupa formed 31 July 2009.

Pupa emerged after 9 days

Host Plant
Narrowleaf Willow  Salix exigua
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