Narceus americanus ...

April 9, 2020

Narceus americanus, also known as the American giant millipede or "iron worm," is the biggest millipede you're liable to find on the east coast. These guys can grow up to four inches long! In a previous post, we talked about how many millipedes can release hydrogen cyanide as a chemical defense when they feel threatened. Narceus americanus doesn't release cyanide, but it can release benzoquinones, which are irritating chemicals that smell a bit like chlorine or bleach. You have nothing to fear from the iron worm, however, and it provides a beneficial service. Millipedes eat vast amounts of decaying leaves and help break down leaf litter into nutrient-rich soil. Narceus americanus, being both large and relatively common, breaks down a whole lot of leaf litter. The next time you're strolling through the woods, tip your hat to the helpful iron worm! #BenInNature

About this post: Social distancing can be difficult, but the next few weeks present a great opportunity to become reacquainted with nature. While he is working from home, Administrator of Science Ben Williams is venturing outdoors each day to record a snapshot of the unique sights that can be found in the natural world.

This post brought to you by VMNH Supporters Linda and Roscoe Reynolds.