additional sourceShelley, R. M. (1986). A reconsideration of the milliped genus Sigmoria, with a revision of Deltotaria and an analysis of the genera in the tribe Apheloriini (Polydesmida: Xystodesmidae). Memoirs of the American Entomological Society, 35: 1-223. Philadelphia page(s): 130 [details]
source of synonymyHoffman, R. L. (1999). Checklist of the millipedes of North and Middle America. <em>Virginia Museum of Natural History, special publication.</em> 8: 1-584. page(s): 324 [details]