Black-legged Tick (Deer Tick)

Scientific Name: Ixodes scapularis

Order & Family: Ixodida, Ixodidae

Size: 1mm (larva) to 5mm (unfed female), up to 10mm when engorged

Black-legged Tick (Deer Tick)

Natural Habitat

Wooded areas, tall grasses, and leaf litter where host animals are frequent

Diet & Feeding

Obligate blood-feeders on mammals, birds, and sometimes reptiles

Behavior Patterns

Four-stage life cycle (egg, larva, nymph, adult); they practice questing by clinging to vegetation with hind legs and stretching front legs to grab passing hosts

Risks & Benefits

Major vector for Lyme disease, anaplasmosis, and babesiosis; they serve as a food source for some reptiles and birds but are primarily considered a public health risk

Identified on: 6/25/2026