Parsley Worm is Black Swallowtail Caterpillar

Subject:  Electric Caterpillars Eating Parsley
Geographic location of the bug:  Mantaloking, NJ
Date: 08/04/2019
Time: 11:47 AM EDT
Your letter to the bugman:  Dear Bugman,
These neon caterpillars were enjoying a parsley buffet in a backyard near the bay in Jersey. Wondering what they will be after they transition…
How you want your letter signed:  Melanie on the Irish Chain

Black Swallowtail Caterpillar

Dear Melanie on the Irish Chain,
This is a Black Swallowtail Caterpillar, often called a Parsley Worm or Carrot Worm by home gardeners because of their host plants.  The adult Black Swallowtail is a beautiful butterfly.

Photo of author


BugMan aka Daniel Marlos has been identifying bugs since 1999. is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

1 thought on “Parsley Worm is Black Swallowtail Caterpillar”

  1. I have many, many yellow jackets and wasps in my property. They seem to be attracted to the caterpillars. How can I rid my place of the caterpillars?


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