Bug Identifier
Dog Tick (specifically an engorged nymph or adult female)
Community identification

Dog Tick (specifically an engorged nymph or adult female)

Dermacentor variabilis (American Dog Tick)

Order & Family
Order Ixodida, Family Ixodidae
Size
3mm to 5mm unfed; up to 15mm or larger when fully engorged with blood.
See this bug in the Encyclopedia

Natural Habitat

Found in wooded areas, tall grass, and shrubs where they wait for hosts like dogs, deer, and humans.

Diet & Feeding

Blood (obligate hematophagy); they feed on the blood of mammals including dogs, cats, and humans.

Behavior Patterns

They exhibit a behavior called 'questing' where they hold onto grass with their back legs and reach out with front legs to latch onto passing hosts. They undergo four life stages: egg, larva, nymph, and adult.

Risks & Benefits

Risk: Known to transmit Rocky Mountain spotted fever (RMSF) and tularemia. They can also cause tick paralysis in hosts. Benefits: No direct benefits to humans, but they serve as a food source for birds and some reptiles in the ecosystem.