Isabella tiger moth (Pyrrharctia isabella) caterpillar with cute yellow fur is crawling on the ground.

Isabella Tiger Moth

A couple of weeks ago we posted photos of a woolly bear caterpillar and cocoon. Did you know that it would become an Isabella Tiger Moth? For our Wildlife Wednesday, check out this video from one of our "naturalists-in-training" as she explains the life cycle of this interesting insect! For more activities, check out our new "At Home Education Resources" webpage https://lowelllandtrust.org/…/e…/climate-change-resources-2/ | Lowell Parks & Conservation Trust

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Do Woolly Bear Caterpillars Forecast Winter? Folklore & Facts

The Isabella tiger moth (Pyrrharctia Isabella) aka “woollybear” is native to North America and can be found throughout the US into Southern Canada. They have two generations per year and spend the winter frozen solid as caterpillars. They produce a substance called cryoprotectant that prevents the inside of their cells from freezing, allowing them to survive the winter and thaw out in the spring. They have a very generalist diet and feed on a wide variety of herbaceous plants and tree foliage bu

Seven minutes of a woollybear caterpillar hatching from its egg! Who watched the whole thing? Do it! I watched this egg for a loooooong time to capture the moment. The Banded Woolly Bear or Isabella Tiger Moth, Pyrrharctia isabella, overwinters as a final instar caterpillar, feeds for a time in the spring and then builds a cocoon and pupates. At The Caterpillar Lab, we accelerated a few woolly bears that we found nearby and the resulting moths already eclosed, mated and laid eggs. Now, here we a