The millipede family Striariidae Bollman, 1893. IX. The identity of Striaria californica Cook, 1899, and the new genus Bayaria for Striaria nana Loomis, 1936, with a key to genera and an annotated checklist of the Striariidae (Diplopoda, Chordeumatida, Striarioidea) Author Shear, William A. Professor Emeritus, Department of Biology, Hampden-Sydney College, Hampden-Sydney VA 23943 USA, current address: 1950 Price Drive, Farmville VA 23901 USA. Author Marek, Paul E. Department of Entomology, Virginia Tech, Blacksburg VA 24061 USA. text Zootaxa 2024 2024-06-07 5463 4 524 544 http://dx.doi.org/10.11646/zootaxa.5463.4.4 journal article 298490 10.11646/zootaxa.5463.4.4 4e6a43e4-e0a4-4882-8c70-e39b11398108 1175-5326 11612167 E3D0302E-AF02-43EA-9ABF-46E754DC655D Genus Amplaria Chamberlin, 1941 Amplaria Chamberlin, 1941 , Bull. Univ. Utah 31: 9. Type species Amplaria eutypa Chamberlin , by original designation. Hoffman, 1980 , Classification of the Diplopoda , p. 127 (synonymized with Striaria Bollman, 1888 ); Hoffman, 1999 , Virginia Mus . Nat. Hist. Special Publ. 8: 208. Shear & Krejca, 2007 , Zootaxa 1532: 25 (revalidation of Amplaria ). Shear, 2021a , Zootaxa 4908: 206. Distributed from southern British Columbia (unpublished records) south to San Diego Co, California , and also in the Sierra Nevada Mountains of California . A single species is known from Idaho . Nineteen species. Speostriaria Causey, 1960 , Proc. Biol. Soc. Washington 71: 25 (synonymized by Shear & Krejca 2007 ). Type species, Striaria shastae Causey, 1958 . Vaferaria Causey, 1958 , Proc. Biol. Soc. Washington 71: 182. Shear, 2020 , Zootaxa 4758: 282 (synonymized by Shear 2020 ). Type species, Striaria imberbis Loomis, 1936 . “ Vaferia ” lapsus for Vaferaria, Hoffman, 1999 , Virginia Mus . Nat. Hist. Special Publ. 8: 210. Shear & Krejca, 2007 , Zootaxa 1532: 26.