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a genus of ticks parasitic on various animals, and vectors of disease-producing microorganisms.
Dermacentor anderso´ni a species of tick common in the western United States, 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 United States, and is the cause of tick paralysis.
Dermacentor varia´bilis the chief vector of Rocky Mountain spotted fever in the central and eastern United States, the dog being the principal host of the adult forms, but also parasitic on cattle, horses, rabbits, and humans.
the wood tick; the vector of Rocky Mountain spotted fever; also transmits tularemia and causes tick paralysis; there are characteristic black and white markings on the large scutum of the male.
tickMedical entomology A hematophagous ectoparasitic arthropod of the superfamily Ixodoidea, which is either a hard tick–family Ixodidae or a soft tick–family Argasidae; ticks may be vectors of bacterial and viral infections. See Colorado tick fever, Deer tick, Lone Star tick, Lyme disease, Rocky Mountain spotted fever.
Ticks of interest
Dermacentor andersoni, the North America vector, Rocky Mountain spotted fever–RMSF, Colorado tick fever–CTF, tularemia and tick paralysis
D marginatus Asian vector–Russian spring-summer fever virus, tick-borne encephalitis virus, possibly also Congo-Crimean hemorrhagic fever virus and Babesia reservoir for Omsk hemorrhagic fever virus
D occidentalis West coast North America–presumed vector for RMSF, CTF
D parumapertus Southwestern US–vector for RMSF, CTF
D variabilis Eastern US–vector for RMSF, tularemia, CTF, and tick paralysis; Asian and African ticks, vectors of Rickettsialpox
Ixodes dammini Northern deer tick–vector, Babesia microti, Lyme disease agent
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).