“I just wanted to share pictures of a pink hornworm”, writes Usman in his submission, which includes fantastic pictures of the described caterpillar. He does not include a question, but simply wanted to share these photos with everyone else, which we greatly appreciate! So with that in mind, we thought it pertinent to just give a basic overview of these strange, pink creatures. Hornworms do not refer to one specific species of caterpillars, but instead make up a subset of the Sphingidae family of moths, otherwise known as Sphinx moths. Hornworms are sphinx moth caterpillars which possess the distinctive horn visible in Usman’s photo.