What's That Bug? does not endorse extermination

Fat, Green Worm
January 23, 2010
We came across this while camping near Lehman Caves at the Great Basin National Park in eastern Nevada in the Summer of 2006.
Tyson Cramer
Great Basin National Park in Nevada

Glover's Silkmoth Caterpillar

Hi again Tyson,
This is a Giant Silkmoth Caterpillar in the genus Hyalophora.  The likeliest candidate in our opinion is Glover’s Silkmoth, Hyalophora columbia gloveri.  We are unable to link to BugGuide this morning, but we did locate an image on the Butterflies and Moths of Arizona website.

What's That Bug? does not endorse extermination

4 Responses to Glover's Silkmoth Caterpillar

  1. April says:

    Found one of these huge caterpillars in the backyard today, in Salisbury, NC

    I have NEVER seen one around here before. Are they native to NC?

  2. April says:

    I took a picture of the caterpillar I saw, it doesn’t match what you say it should be. Sorry, but it looks like the Glover’s Silkmoth Caterpillar. Wish it was still around, but I’m afaid something got it. I couldn’t find it anywhere today.

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