Carios kelleyi is widely distributed in the United States and Canada and has also been reported from Costa Rica (Schwan et al. 2009 and references therein).
- Schwan, T. G., S.J. Raffel , M.E. Schrumpf, J.S. Gill, and J. Piesman. 2009. Characterization of a Novel Relapsing Fever Spirochete in the Midgut, Coxal Fluid, and Salivary Glands of the Bat Tick Carios kelleyi. Vector-Borne and Zoonotic Diseases 9(6): 643-647.
