Bedstraw Hawkmoth Caterpillar from Canada

Subject: Stinging Catepillar
Location: 70 km north of Fort McMurray, Alberta
July 30, 2012 11:38 am
I saw this guy in late July in a shrubby area in the boreal forest while working. He was about 2.5-3 inches long with a distinct red stinger. I have no idea what species this is…
Signature: Chebb

Bedstraw Hawkmoth Caterpillar

Dear Chebb,
Your speculation that because this caterpillar has a horn, it is capable of stinging is incorrect.  This is the perfectly harmless caterpillar of the Bedstraw Hawkmoth, a member of the family Sphingidae that has caterpillars commonly called Hornworms.  There are several different color variations to the Bedstraw Hawkmoth Caterpillar including black with spots and green with spots as well as your olive drab example.  The Bedstraw Hawkmoth Caterpillar feeds on the leaves of Bedstraw in the genus
Gallium and Fireweed in the genus Epilobium.  You can read more about the Bedstraw Hawkmoth on the Sphingidae of the Americas website.

38 thoughts on “Bedstraw Hawkmoth Caterpillar from Canada”

  1. I found one at the Wuskwatim generating station.
    Wuskwatim lake, Manitoba Canada
    I work for Manitoba Hydro and I took the caterpillar to the Entomology lab at the University of Manitoba.

    Reply
  2. I found one at the Wuskwatim generating station.
    Wuskwatim lake, Manitoba Canada
    I work for Manitoba Hydro and I took the caterpillar to the Entomology lab at the University of Manitoba.

    Reply
  3. Found this one in backyard, but with dark magenta colouring on his body. Genetic mutation or cross-breeding between a different species of caterpillar such as the Pandorus Sphinx?

    Reply
  4. Steve and Charlene found one in Tay Creek,New Brunswick,Canada…never saw one before…Bedstraw just arrived in the late 70’s here in central NB…did they arrive at that time or have they been all along

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  5. Just found one of these beauts in my yard by the propane tank. First time I’ve seen one of these. Hopefully he’ll be okay through the winter. I’m just outside of Renfrew, Ontario in Canada.

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  6. Found another one in Wasilla. Seems when they Cocoon the material they make to do so, seems to be carbon like and quite crystaly & almost metallic. Kind of interesting.

    Reply

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