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American Dog Tick

Dermacentor variabilis


Adult female dog tick. Female American Dog Ticks are reddish-brown and have a white or yellowish pattern on their scutum.


My cat found this tick crawling across my livingroom floor. I'm guessing it hitchhiked on me or my kids since we had been hiking earlier that day. Thankfully it wasn't smart enough to feed on us while it had the chance.


Dog ticks are frequently found in areas with little or no tree cover, such as in fields and along trails. They feed on a variety of hosts, including mice, raccoons, cats, dogs, deer, and humans. The nymphs and adults can transmit diseases, such as Rocky Mountain Spotted Fever and Tularemia, but they are not competent vectors of Lyme Disease. They can survive for up to 2 years at any given stage if no host is found.

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Christine Y.
Spotted by
Christine Y.

Connecticut, USA

Spotted on Apr 18, 2017
Submitted on Apr 25, 2017

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