Brown Dog Tick

Rhipicephalus sanguineus

''Rhipicephalus sanguineus'', commonly called the brown dog tick, kennel tick, or pantropical dog tick, is a species of tick found worldwide, but more commonly in warmer climates. This species is unusual among ticks in that its entire lifecycle can be completed indoors.
Brown Dog Tick (Nymph) - Rhipicephalus sanguineus I was surprised that we didn't have any photos of this species on JD because it is found worldwide...So, here it is.

Brown dog ticks are easy to recognize because they are brown, lack ornamentation, and have a hexagonal basis capituli.   Adults grow to just over 3 mm in length.

It is medically significant in that it can transmit many pathogens to dogs that induce diseases, such as tick typhus, Rocky Mountain spotted fever, babesiosis, and ehrlichiosis. 

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The brown dog tick is easily recognized by its reddish-brown color, elongated body shape, and hexagonal basis capituli. Adults are 2.28 to 3.18 mm in length and 1.11 to 1.68 mm in width. They do not have ornamentation on their backs.


A cosmopolitan species, it can be found in worldwide.


''Rhipicephalus sanguineus'' is one of the most important vectors of diseases in dogs worldwide. In the United States, ''R. sanguineus'' is a vector of many disease-causing pathogens in dogs, including ''Ehrlichia canis'', which causes canine ehrlichiosis, and ''Babesia canis,'' which is responsible for canine babesiosis. In dogs, symptoms of canine ehrlichiosis include lameness and fever; those for babesiosis include fever, anorexia, and anemia. ''R. sanguineus'' has not been shown to transmit the bacteria that cause Lyme disease in humans. In parts of Europe, Asia, and Africa, it is a vector of ''Rickettsia conorii'', known locally as Mediterranean spotted fever, boutonneuse fever, or tick typhus.

It can also transmit ''Rickettsia rickettsii,'' the bacteria responsible for causing Rocky Mountain spotted fever in humans in the Southwestern United States.


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SpeciesR. sanguineus