Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Spring 2021 gathering in Louisiana, April 28-May 2. Here's how to add your images.

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Huge caterpillar - Antheraea polyphemus

Huge caterpillar - Antheraea polyphemus
Fort Atkinson, Jefferson County, Wisconsin, USA
August 10, 2007
Size: 2.5 inches
Found in the lawn. Other vegetative species adjacent: common milkweed, birch, hackberry, spruce, oak. The area is near a high qualilty wetland/prairie.

If these are all the comments
If these are all the comments up to date, I'm sure I won't get an answer to my question, but here goes anyway...... Is there anyone out there that knows what to feed this amazing little creature? I have recently found one and have it in an open jar. It is currently spinning silk around the rim of the jar and has not tried to escape yet. I have had the caterpillar for two days. It may be getting ready to cocoon but I would like to have food available just in case.

what do i do to keep it alive?
hi I found that same caterpillar in my backyard, I'm trying to breed them but what do to take care of it?

Polyphemus Moth Caterpillar
Looks like a Polyphemus Moth caterpillar.
(Antheraea polyphemus)

Polyphemus Moth
Yes, that's a Polyphemus Moth caterpillar

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.