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a common species attacking sheep, oxen, goats, and deer, and sometimes troublesome to humans; it is found in Europe, Asia, and the Americas.
a genus of ticks parasitic on various animals, and vectors of disease-producing microorganisms; member of the family Ixodidae.
a one-host tick that transmits anaplasmosis and possibly Rocky Mountain spotted fever. Parasitizes moose mostly but also other wild ruminants and pastured livestock. Called also moose tick, winter tick.
a species of tick common in the western USA, parasitic on numerous wild mammals, most domestic animals, and humans. It is a vector of Rocky Mountain spotted fever, tularemia, Colorado tick fever, and Q fever in the USA, and is one of the causes of tick paralysis in USA.
Dermacentor halli, Dermacentor marginatus, Dermacentor nuttalli, Dermacentor silvarum
miscellaneous ticks of little importance to animals.
a one-host tick occurring mostly on white-tailed deer, but also on pastured livestock. Called also brown winter tick.
a one-host tick that parasitizes horses mostly and is the vector of equine piroplasmosis; predisposes animals to screw-worm attack. Called also tropical horse tick, Anocentor nitens.
a three-host tick found on many animals. Immature forms are on rodents. Transmits anaplasmosis, Colorado tick fever, Q fever, tularemia, causes tick paralysis. Called also Pacific Coast tick.
a vector of Rocky Mountain spotted fever.
a three-host tick that transmits equine piroplasmosis.
a three-host tick that transmits Anaplasma marginale in cattle, tularemia in humans, is the chief vector of Rocky Mountain spotted fever in the central and eastern USA and causes tick paralysis in the dog. The dog is the principal host of the adult forms, but also parasitic on cattle, horses, rabbits and humans. Called also American dog tick.
see Dermacentor andersoni (above).