Worm Found by Reader Actually an Underwing Caterpillar

A reader recently asked us “what kind of worm is this?” She was referring to a creature featured in the accompanying photograph. After glancing at the photo we are sure she has discovered a caterpillar, not a worm. Caterpillars are the larval form of moths and butterflies.

This caterpillar is light brown on the topside, and has a pattern that slightly resembles tree bark (probably to help camouflage). Its underside is dark pink. Based on the great photos provided by our reader, we can identify this as an Underwing caterpillar in the genus Catocala. It will eventually become an Underwing moth.

UPDATE! All About Worms has partnered with HealthLabs so that
you can get tested for parasites at a fully-qualified lab near you,
no doctor's visit required
! Check it out at HealthLabs.com!

In summary, our reader sent us in a photo of a creature that we believe to be an Underwing caterpillar.

No Paywall Here!
All About Worms is and always has been a free resource. We don't hide our articles behind a paywall, or make you give us your email address, or restrict the number of articles you can read in a month if you don't give us money. That said, it does cost us money to pay our research authors, and to run and maintain the site, so if something you read here was helpful or useful, won't you consider donating something to help keep All About Worms free?
Click for amount options
Other Amount:
What info did we provide for you today?:
Summary
Worm Found by Reader Actually an Underwing Caterpillar
Article Name
Worm Found by Reader Actually an Underwing Caterpillar
Description
A reader recently asked us “what kind of worm is this?” She was referring to a creature featured in the accompanying photograph. After glancing at the photo we are sure she has discovered a caterpillar, not a worm. Caterpillars are the larval form of moths and butterflies.
Author

Leave a Comment (but to submit a question please use the "Submit a Question" link above; we can't respond to questions posted as a comment)

Menu / Search

All About Worms