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.
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In summary, our reader sent us in a photo of a creature that we believe to be an Underwing caterpillar.
All About Worms is always free, always reader-supported, we don't subject you to ads or annoying video pop-ups. But it does cost us money out of our pocket to keep the site going (nearly 20 years so far!) So your tips via CashApp, Venmo, or Paypal are appreciated! Receipts will come from ISIPP Publishing.
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Venmo us
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