What's That Bug? does not endorse extermination

Subject: What kind of bug is this
Location: Arizona
November 28, 2015 1:12 pm
We found this caterpillar on our porch. We are wondering what kind species it is. Thanks.
Signature: Tavin

Great Ash Sphinx

Great Ash Sphinx

Dear Tavin,
Do you have a nearby ash tree?  This looks like the Hornworm of a Great Ash Sphinx,
Sphinx chersis, and we are basing our ID on the curved blue horn.  You can compare your image to this BugGuide image, though we believe the difference in coloration may be due to the proximity of pupation time for your individual.

What's That Bug? does not endorse extermination
Location: Arizona

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