The geographic distribution for this little-known species includes at least AK, CA, CO, MT, and TX but, like I. baergi, it may be more widespread. Its presence in Colorado is based on a single nymph collected in Weld County in 1943 from a prairie falcon and identified by Kohls and Ryckman (1962).
Hosts are primarily cliff swallows; but also other birds that may nest nearby, including the gray-crowned rosy finch, the prairie falcon; and the gyrfalcon.
This tick currently has no known medical or veterinary importance.
H Joel Hutcheson, James W Mertins, Boris C Kondratieff, Monica M White, Ticks and Tick-Borne Diseases of Colorado, Including New State Records for Argas radiatus (Ixodida: Argasidae) and Ixodes brunneus (Ixodida: Ixodidae), Journal of Medical Entomology, tjaa232, https://doi.org/10.1093/jme/tjaa232