Nymphalis antiopa (Linnaeus, 1758)
Adults
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Rock Canyon, April 29, 2006
Butterfield Canyon - from larvae located 26 July 2009
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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
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