The tick can be found in Venezuela, Argentina, Brasil, Colombia, Peru and Uruguay.

[1][2] Though not thought to be endemic to North America, a 2010 study found 27 specimens in 18 separate collections that had previously been misidentified in the United States.

[3] The species has been found to carry the human-infectious Rickettsia parkeri which produces symptoms similar to Rocky Mountain spotted fever.

[4] The tick is the only tick responsible for tick-borne disease in humans in Uruguay,[4] and has been identified as a significant vector of disease in Argentina and Brazil.

both of which are also carriers of Rickettsia parkeri.