Subject: Unknown creature
Location: New Jersey
September 9, 2013 8:30 am
Can you identify this creature? It has a lot of people wondering.
This is a prepupal Spicebush Swallowtail Caterpillar. Just prior to pupation, the normally green caterpillars often change color. If you look closely, you should be able to see a silken girdle that keeps the chrysalis upright. Within a day, this caterpillar should metamorphose into a chrysalis. We would love a followup photo of the chrysalis if you are able to take it.