Answer 1:They can be harmful to vegetation because in this state, they eat voraciously. They aren't harmful to humans, per se. Unless you eat one--probably will make you sick!
Answer 2:If They grow, they become butterfly so they help you from plants, but the caterpillars to people shed sometimes they are harmful
We get echo moth caterpillars all the time. My kids have handled them for years with out a single incident. The do poop alot though.
Yes, it can be. Some are poisonous.The ones with bright colors are warning a predator that they are dangerous.
No
The Vapourer moth caterpillar is hairy and has red spots on their dark gray or black body. They are not a poisonous caterpillar.
the Cecropia moth live in North America
The bright green caterpillar with yellow and black slashes and a blue tail is called a Cecropia Moth. They can measure up to 4 inches long and are considered large compared to other caterpillars.
This particular caterpillar is actuallylarvae of a moth, despite its spikes and large appearance it does not bite or sting. it only live for a few weeks! and it's main purpose is to mate. You can get more information about it at http://counties.cce.cornell.edu/oneida/home%20garden/INSECTS/Cecropia%20Moth.pdf just copy and paste this it will take you directly to the site your looking for.
The accepted scientific name is Hyalophora cecropia.
The life span of a cecropia moth is about 2-3 weeks depending on the area you live in or how much the larvae got in its younger life.
There are many colorful insects that exist throughout the world. Some brightly colored insects include the Cecropia moth caterpillar and the Coreid bug nymphs.
Nope ur fine
A Antheraea Polyphemus caterpillar is completely harmless to humans and animals. It belongs to a family of the Cyclops Polyphemus and has no venom or any other harmful things.
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I'm not sure if what you are looking at is a worm per se. It sounds more like a caterpillar which is the larvae of either a butterfly or moth. Try looking up different types of caterpillars since they tend to be quite colorful and can have hairs that stand out on various areas of their segmented bodies. That sounds kind of like a wooly bear caterpillar to me. wooly bears are often black with redish fuzz and black fuzz. (3 stripes) They become Isabella moths.