Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Flat-backed Millipede



Polydesmida--flat-backed millipedes. A very common millipede and one of the largest of the 10 families found in North America. The only millipede that produces cyanide as a defense. Very common in leaf litter, where they burrow by levering with the anterior end of the body. Has 18 to 22 body rings. Colors can be red, yellow, orange and black.


On a bike path in the woods of Durbin, West Virginia

Species ID Suggestions

Sign in to suggest organism ID


Latimeria 6 years ago

Pseudopolydesmus sp., probably P. canadensis. 7 years ago

Thank you AshleyT for your expertise in correctly identifying this flat-backed millipede., I also could not tell the difference before......and it looks like I still can not tell the difference!!?? : o

AshleyT 7 years ago

Millipede in the order Polydesmida, known as flat-backed millipedes. 7 years ago

Could not find a clear website link for this spotting. thanks everyone for your help.

KarenPuracan, I can not see the ID post or website link, I would like to take a look at it. : )

MrsPbio 7 years ago

I'm making an educated guess about the genus... please refer to the website link I gave in my ID post.

If I'm wrong, feel free to disagree! :)

MrsPbio 7 years ago

Millipede., I also could not tell the difference before, yours is a centipede.
Spotted by

West Virginia, USA

Spotted on Sep 25, 2014
Submitted on Sep 25, 2014

Noah Guardians
Noah Sponsors
join Project Noah Team

Join the Project Noah Team