Cook, O. F.; Collins, G. N. (1895). The Craspedosomatidae of North America. Annals of the New York Academy of Sciences, 9: 1-100. New York, available online athttp://biodiversitylibrary.org/page/35260543 page(s): 85, pl. 12, figs. 209-219 [details]
original descriptionCook, O. F.; Collins, G. N. (1895). The Craspedosomatidae of North America. Annals of the New York Academy of Sciences, 9: 1-100. New York, available online athttp://biodiversitylibrary.org/page/35260543 page(s): 85, pl. 12, figs. 209-219 [details]
additional sourceGardner, M. R.; Shelley, R. M. (1989). New records, species and genera of Caseyid Millipeds from the Pacific Coast of North America (Diplopoda: Chordeumatida: Caseyidae). Pan-Pacific Entomologist, 65(2): 177-268. SanFrancisco[details]
additional sourceShear, W. A.; Leonard, W. P. (2007). Additions to the milliped family Caseyidae. I. Caseya richarti, n. sp., and new records of previously described species in the genus Caseya Cook and Collins 1895 (Diplopoda, Chordeumatida, Caseyidae). Zootaxa, 1524: 23-34 page(s): 33; note: Includes discussion on the validity of C. heteropa subspecies [details]