The millipede genus Striaria Bollman, 1888 heretofore had been thought to be confined to the Appalachian region of eastern North America, is replaced in western North America by species of the genus Amplaria Chamberlin, 1941. Collections from northern Idaho show that this is not the case, and that at least four species of Striaria occur in the west. These species are described herein as Striaria aculeata n. sp., S. bombillus n. sp., S. vagabundus n. sp. and S. orator n. sp.
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Shear, W.A. (2020) The millipede family Striariidae Bollman, 1893: I. Introduction to the family, synonymy of Vaferaria Causey with Amplaria Chamberlin, the new subfamily Trisariinae, the new genus Trisaria, and three new species (Diplopoda, Chordeumatida, Striarioidea). Zootaxa, 4758 (2), 278−295.
Shear, W.A. (2021) The millipede family Striariidae Bollman, 1893: II. New records and species of the genus Amplaria Chamberlin, 1941 (Diplopoda, Chordeumatida, Striarioidea). Zootaxa. 4908 (2), 205–224.
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