Subject: unknown bug
Location: marsh creek ca
August 23, 2015 12:17 pm
A friend found this bug/ catapilar in marsh creek california.
Signature: with a signature
We believe your Hornworm is an early instar Achemon Sphinx that has not yet shed its caudal horn, which is a typical part of the maturing of the species. As they grow and age, Achemon Sphinx Caterpillars lose the horn, leaving a caudal bump as the only evidence a horn once existed. See this BugGuide image for comparison.