Subject: Green Crawling insect
Geographic location of the bug: India- Goa
Time: 12:07 AM EDT
Your letter to the bugman: Please find this bug details.
How you want your letter signed: Ta
This is a Hornworm, the caterpillar of a Hawkmoth in the family Sphingidae. We are not entirely sure we have correctly identified your individual, but the caterpillar of the Levant Hawkmoth, Theretra alecto, pictured on Sphingidae of the Eastern Palaearctic looks similar, as does the green variation of the Taro Hornworm, Theretra oldenlandiae, also pictured on Sphingidae of the Eastern Palaearctic. We hope Hornworm expert Bostjan Dvorak can assist in this identification.
Ed. Note: We are thrilled that Bostjan wrote back that “This amazing record documents the spectacular caterpillar of Theretra lycetus, in a rather rare, green morph; it is more common in yellow or brown colour.” The species is not even represented on Sphingidae of the Eastern Palaearctic, which explains why we never even considered it. We do have an image of the adult Theretra lycetus in our archives. We did locate an image of a brown caterpillar on Wikimedia Commons.