Field Guide
American giant millipede
Narceus americanus
American giant millipede
Narceus americanus
Narceus americanus is a large millipede of eastern North America. Common names include American giant millipede. It has a nearly cylindrical gray body, reaching a length of 4 inches (100 mm). They can be commonly found in or under decaying logs.

When threatened, they sometimes curl up or release a noxious liquid that contains large amounts of benzoquinones which can cause dermatological burns. This fluid may irritate eyes or skin.


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