Subject: What caterpillar and moth or butterfly will this be
Geographic location of the bug: Chapala, mexico
Time: 03:40 PM EDT
Your letter to the bugman: My friend sent me a pic of this caterpillar from Chapala Mexico. After looking online I found hornworm caterpillars. Which one is this and what moth or butterfly does it turn into. Also what is the purpose of the horn?
How you want your letter signed: Sarah
We are very confident that this is a Hornworm in the family Sphingidae, and that it will eventually transform into a Sphinx Moth or Hawkmoth, but alas, we have not been successful identifying its species despite the excellent database on Sphingidae of the Americas. We will write to Bill Oehlke to see if he can provide a species identification.
Bill Oehlke Responds.
Hi Daniel, I think I have seen that one before, but a quick check did not let me come up with an id. Later this afternoon I will send it to Jean Haxaire to see if he knows what it is.
Jean Haxaire has indicated Isognathus rimosus inclitus.
I wish permission to post it to website. Please check with photographer and forward his or her name.
Ed. Note: The subspecies Isognathus rimosus inclitus is pictured on Sphingidae of the Americas, but there is no larval image. We are writing back to Sarah with the identification and a request from Bill Oehlke to include the image on his comprehensive site.