What's That Bug? does not endorse extermination

Subject:  Giant Sphinx Pupa
Geographic location of the bug:  Bernardo Heights Country Club, Rancho Bernardo, CA
Date: 08/26/2018
Time: 01:20 AM EDT
Your letter to the bugman:  I spotted this caterpillar at our golf course this afternoon, Sunday, August 26, 2018.  I think it is a Giant Sphinx pupa.  Is this correct?
How you want your letter signed:  CADSAN

Pre-Pupal Great Ash Sphinx

Dear CADSAN,
This is a Caterpillar, not a Pupa, but based on the orange color, in our opinion it is a pre-pupal Caterpillar, and though it is not a Giant Sphinx, it is in the Sphinx Moth family Sphingidae.  The blue caudal horn is unusual, and we believe we have correctly identified it as a pre-pupal Great Ash Sphinx Caterpillar,
Sphinx chersis, thanks to this BugGuide image.  According to BugGuide:  “Larva – greenish or pinkish with seven long diagonal lines sometimes edged with pink. Spiracles elongate, black ringed with white. Horn blue or pink. ”  According to Sphingidae of the Americas:  “Larval hosts are ash, lilac, privet, cherry, and quaking aspen.”

Thank you for you prompt reply.  I had never seen one of those before.  Had a tough time trying to find a picture of him on the internet. He was crawling across a fairway, so I put him in what I am hoping is a safe area so he can  hopefully become a moth someday.  Your website is great!
Appreciate all the info.
Carolyn Dullea

What's That Bug? does not endorse extermination
Location: Rancho Barnardo, California

Leave a Reply

Your email address will not be published. Required fields are marked *