Location: Off of Hwy78 between Sauk City and Mazomanie
Red Admiral caterpillars have tied up Stinging Nettles leaves with silk strands to make a leaf nest to protect them. Quite a few leaves are closed up but not as completely over-run as they did in the invasion year 2012! Photo shows a Red Admiral caterpillar sewing a Nettles leaf shut.
Red Admiral caterpillar
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