Deer Tick

Stop Ticks On People
A Coalition in Partnership with
Families First New York, Inc.

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American Dog Tick

Dermacentor variabilis 

One of the most frequently encountered ticks is the American Dog Tick. The larvae and nymphs feed on small warm-blooded animals such as mice and birds. The adult American dog tick will feed on humans and medium to large mammals such as raccoons and dogs. Unfed males and females are reddish-brown and about 3/16-inch long. Females have a large silver-colored spot behind the head and will become �-inch long after feeding or about the size of a small grape.
 

American Dog Tick

Males have fine silver lines on the back and do not get much larger after feeding. Males are sometimes mistaken for other species of ticks because they appear so different from the female.
 
The American dog tick can transmit Rocky Mountain spotted fever, tularemia and ehrlichiosis to humans.
 

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