Apheloriini

Apheloriini is a tribe of flat-backed millipedes in the subfamily Rhysodesminae in the family Xystodesmidae. These millipedes are endemic to the temperate forests of North America. All species in this tribe produce cyanide, which they emit through their ozopores as a defense against predators. Millipedes in this tribe are also known as cherry millipedes, because the production of cyanide also generates benzaldehyde, which smells like cherries or almonds.

These millipedes display bright colors in aposematic patterns to warn predators of toxic secretions. Millipedes in this tribe in the Appalachian Mountains, including species of Apheloria and Brachoria, participate in Müllerian mimicry rings. As a result of this mimicry among species, color patterns are extremely variable within species.