University of Wisconsin–Madison

Tick Identification

These are adult wood ticks (American dog ticks; bottom row) compared with adult deer ticks (top row). Wood ticks have the whitish markings on the body while the deer ticks (blacklegged ticks) are reddish to dark brown in appearance without white markings and are usually smaller.  The single deer tick is circled in the group photo-the rest are all male and female wood ticks that show how much size can vary.

These are all deer or blacklegged ticks. Top row: nymph and larva. Bottom row: Adult female and adult male.

These are lone star ticks. They are not common in Wisconsin but are abundant in Southern Illinois. The female has the white spot on the back. The other tick is a male.