References

Chamberlin, R. V. (1920a). New spiders from Utah. The Canadian Entomologist 52(9): 193-201. doi: 10.4039/Ent52193-9 -- Show included taxa

Chamberlin, R. V. (1922). The North American spiders of the family Gnaphosidae. Proceedings of the Biological Society of Washington 35: 145-171. -- Show included taxa

Chamberlin, R. V. (1936b). Further records and descriptions of North American Gnaphosidae. American Museum Novitates 853: 1-25. -- Show included taxa

Platnick, N. I. & Shadab, M. U. (1982a). A revision of the American spiders of the genus Drassyllus (Araneae, Gnaphosidae). Bulletin of the American Museum of Natural History 173: 1-97. -- Show included taxa

Platnick, N. I. & Dondale, C. D. (1992). The insects and arachnids of Canada, Part 19. The ground spiders of Canada and Alaska (Araneae: Gnaphosidae). Research Branch Agriculture Canada Publication 1875: 1-297. -- Show included taxa

Ubick, D. & Roth, V. D. (1973a). Nearctic Gnaphosidae including species from adjacent Mexican states. American Arachnology 9(suppl. 2): 1-12. -- Show included taxa

Worley, L. G. (1928). New Nebraska spiders. Annals of the Entomological Society of America 21(4): 619-622. doi: 10.1093/aesa/21.4.619 -- Show included taxa