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Milkweed Tussock Moth

Euchaetes egle


Euchaetes egle, the milkweed tussock caterpillar or milkweed tiger moth, is a moth in the family Arctiidae. It is a common mid- through late-summer feeder on milkweeds and dogbane. Like most species in this family, it has chemical defenses it acquires from its host plants, in this case, cardiac glycosides. These are retained in adults and deter bats, and presumably other predators, from feeding on them. Only very high cardiac glycoside concentrations deter bats. Adults indicate their unpalatability with clicks from their tymbal organs

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Spotted by

Wisconsin, USA

Spotted on Aug 28, 2015
Submitted on Oct 16, 2016

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