Bug Identifier
American Dog Tick
Community identification

American Dog Tick

Dermacentor variabilis

Order & Family
Ixodida, Ixodidae
Size
3 to 5 mm (unfed adult), up to 15 mm (engorged female)
See this bug in the Encyclopedia

Natural Habitat

Grassy areas, wooded paths, and low vegetation where hosts are likely to pass

Diet & Feeding

Blood from mammals, including dogs, deer, raccoons, and humans

Behavior Patterns

They exhibit questing behavior by climbing to the tips of grass or leaves and extending their legs to grab onto passing hosts. They have a four-stage life cycle: egg, larva, nymph, and adult.

Risks & Benefits

As vectors, they can transmit Rocky Mountain Spotted Fever and Tularemia to humans. They are also known to cause tick paralysis in both pets and humans if not removed.