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13 votes
Accepted

What will this bright green caterpillar with small turquoise spots turn into?

It's the Great Peacock Moth Caterpillar. See Wikipedia for other images, including a painting of the moth by Van Gogh. Saturnia pyri, the giant peacock moth, also called the great peacock moth, ...
ab2's user avatar
  • 24k
10 votes
Accepted

What is this black and yellow-striped caterpillar with four toothbrush-looking tufts of hair along the top?

That is a White Marked Tussock Moth. The long, spiky tufts of hairs give fair warning to anyone or anything that tries to touch this species' larva. The caterpillar is covered with them and the ...
Charlie Brumbaugh's user avatar
8 votes
Accepted

What is growing in these cocoon-looking structures found on a mountain in Massachusetts, USA?

We went back today and spoke with the naturalist, Cindy, who's part of a team that cares for that property which includes hundreds of acres. These are webbed nests filled with hundreds of ...
Sue Saddest Farewell TGO GL's user avatar
3 votes

What is this black and yellow-striped caterpillar with four toothbrush-looking tufts of hair along the top?

This is a tussock moth caterpillar in the Lymantriidae family. The image is not clear enough for a definitive ID, but it appears you have some species in the genus Orgyia. Likely, this is a white-...
theforestecologist's user avatar
3 votes

What is this brown catipillar with white stripes and two black spots near the head in Loveland, Colorado?

I'm not 100%, but I am going to call that a yellow striped armyworm, Spodoptera ornithogalli. These things seem to be widely distributed and very common; I've seen them frequently in my travels but ...
cobaltduck's user avatar
  • 5,178
1 vote

How can I tell the difference between a Tentworm caterpillar and a Fall Webworm caterpillar by observing the web?

There are a few clearly observable differences between the nests of the Eastern tent caterpillar (Malacosoma americanum), often called tentworm and treeworm, and the fall webworm, Hyphantria cunea. ...
Sue Saddest Farewell TGO GL's user avatar

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