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Rhipicephalus sanguineus

Common name: Brown dog tick

Brown dog tick. Photo: James Gathany, Centers for Disease Control and Prevention.

Geographic distribution

Present in all Indiana counties and widely distributed throughout the United States. Click here to see the geographic distribution of ticks that bite humans in the United States.

Life cycle

The brown dog tick life cycle consists of four stages (egg, larva, nymph, and adult). This tick is unique in that all its life stages can feed on the same host species (dogs), but the tick may also bite humans or other animals. The brown dog tick can survive very well indoors as well as outdoors.

Graphic: Centers for Disease Control and Prevention.

Associated diseases

  • Rocky Mountain Spotted Fever is transmitted by brown dog ticks in the southwestern U.S. and along the U.S.-Mexico border, but not in Indiana.


The best way to prevent diseases associated with brown dog ticks is to avoid tick bites. Please see our tick prevention page for more information.

Page Last Updated: October 16, 2018

Page Last Reviewed: September 7, 2018