Bidentogon expansus, new species Bidentogon californicus: Shear, 1972:490–492, figs. 4–5. Hoffman, 1999:438. Shelley, 2002: 108. Type specimens. Male holotype and one male and two female paratypes (MCZ) collected by M. G. Childs in January 1914 in Sacramento, Sacramento County, California. Diagnosis Tibiotarsus expanding distad, apically broad and spatulate (Shear 1972, figs. 4­5). Ecology. The types were collected from debris in a hollow apple tree. Distribution. Known only from the type locality.

Published as part of Shelley, Rowland M., 2003, A new polydesmid milliped genus and two new species from Oregon and Washington, U. S. A., with a review of Bidentogon Buckett and Gardner, 1968, and a summary of the family in Western North America (Polydesmida: Polydesmidae), pp. 1-12 in Zootaxa 296 (1) on page 11, DOI: 10.11646/zootaxa.296.1.1, http://zenodo.org/record/5014425