Chonaphe armata[1] is a species of Xystodesmid millipede found in the Pacific Northwest of North America.

[3] Similar to many other Xystodesmid millipedes, C. armata is typically black to brown in base color with yellow tipped paranota.

The species shows more color variation than other Pacific Northwest Xystodesmids, however, and can also be found with paranota color ranging from light cream, to orangish-red and with the paranota color forming bands across the tergites of the latter segments.

[4] As with many other species of Xystodesmid, C. armata can produce hydrogen cyanide from ozopores located on the edge of the paranota of each body segment.

C. armata inhabits five disjunct populations and is found in the Rocky Mountains of northern Idaho and western Montana, The Okanagan Highlands of Washington, the eastern Cascade Range of Washington and Oregon, and the Blue Mountaints of Oregon.