Subject: Bright green caterpillar
Location: Central Ohio
August 20, 2013 5:00 pm
This Caterpillar was on my parsley plant in mid August in central Ohio.
Signature: Mark D.
Hi Mark,
This is the caterpillar of a Black Swallowtail, and it is sometimes called a Parsley Worm or Carrot Worm. The adult Black Swallowtails are lovely butterflies.
What's That Bug? does not endorse extermination