What Do Ticks Look Like?
Ticks are like insects but with eight legs not six. They are small and can be brown, black, or reddish, ranging from the size of a poppy seed to an apple seed. They have a flat, oval-shaped body before feeding and can swell to the size of a coffee bean or marble when engorged.
Different Types of Ticks in Hamilton
American Dog Ticks
The most common tick found in our area, they cannot transmit Lyme disease. American dog ticks are larger than a blacklegged deer tick, with light-colored markings on their backs.
Blacklegged Deer Ticks
The only known ticks that can transmit Lyme disease in Ontario. Blacklegged ticks have been found in Hamilton. However, the risk of Lyme disease is considered low. Female blacklegged deer ticks that can carry Lyme disease are smaller than the American dog tick, with a reddish body and dark brown or black legs.
If you think you have been exposed to a blacklegged tick, contact your doctor for advice.
(Photo credit: URI Tick Encounter Resource Centre)
Lone Star Ticks
The risk of contact with a lone star tick in Hamilton is very low. While they have been found in the areas of Southern Ontario, they are not currently considered established in the province. Lone star ticks are mostly found in the eastern, southeastern, and midwestern United States, especially in southern states. As a result of milder winters, these ticks are spreading northward into the northeast. These ticks are mostly found on humans/pets who have traveled, though non-travel-related cases do occur.
Adult female lone star ticks have a distinct white spot (or "star") on their backs; males have scattered streaks.
Photo credits: Public Health Ontario & Niagara Region
How to Submit a Tick for Identification
There are two ways to submit a tick to Hamilton Public Health for identification:Send a photo through email
- Email a clear photo of the tick to [email protected] and provide the location where tick was found.
- Submit in-person to:
To submit the tick to Hamilton Public Health for identification:
- Save the tick in a clear jar, screw-top bottle, or zip-lock bag.
- The tick must be loose in the jar, bottle, or bag.
- Do not put the tick in any liquid or attach it to paper or tape.
- Fill out all the information on the tick label
Note for tick testing:
- Public Health staff will look at and identify all ticks submitted.
- Hamilton Public Health no longer tests blacklegged deer ticks for Lyme disease if they were found on a person. Persons exposed to blacklegged ticks should contact their doctor for advice.
- Hamilton Public Health does not test ticks found on dogs or animals for Lyme disease.
- Public Health staff will call you within two to five business days to let you know the results of the identification.
Learn more about Tick Identification at etick.ca