Regional tick guide

Ticks in Wyoming

Explore reviewed tick occurrence records for Wyoming, with links to identification profiles, evidence and practical guidance.

View ticks found in this location Explore the Global Tick Hub

Reviewed sources

3

linked tick species

State

geographic level

US-WY

location code

3 reviewed species records are currently linked to Wyoming.

Introduced, occasional and other records

Magnified dorsal view of a Dermacentor albipictus winter tick larva

Winter tick

Dermacentor albipictus

Present Dermacentor hard_tick Wyoming

Wyoming's 2025 Tick Blitz identified winter ticks in statewide collections.

Quick view

A one-host Dermacentor species widely known as the winter tick. Human encounters are reported, while health claims require association-specific evidence.

Identification:

A hard tick in the genus Dermacentor. Species confirmation requires examination of diagnostic morphology; photographs, host and location alone may be insufficient.

Hosts: Humans, Horses

Photographs and visible features may be insufficient for definitive identification.

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Adult female Dermacentor andersoni on the left and adult male on the right with scutum differences marked

Rocky Mountain wood tick

Also known as: Rocky Mountain tick

Dermacentor andersoni

Present Dermacentor hard_tick Wyoming

Wyoming's 2025 Tick Blitz identified Rocky Mountain wood ticks in statewide collections.

Quick view

A hard tick of the Rocky Mountain states and southwestern Canada. Adults are the principal stage associated with pathogen transmission to humans.

Also known as: Rocky Mountain tick

Identification:

Adults are ornate Dermacentor ticks with short mouthparts, eyes and festoons. Females have a cream-patterned anterior scutum; males show pale mottling across most of the dorsum.

Hosts: Humans, Small mammals, Large mammals, Livestock, Dogs

Habitats: Rocky Mountain rangeland, Grassland and shrubland

Photographs and visible features may be insufficient for definitive identification.

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Adult male and female Dermacentor variabilis American dog ticks on a blade of grass

American dog tick

Also known as: Wood tick

Dermacentor variabilis

Present Dermacentor hard_tick Wyoming

Wyoming's 2025 Tick Blitz identified American dog ticks in statewide collections.

Quick view

A widespread North American hard tick. Adults commonly bite dogs and humans, while larvae and nymphs feed mainly on small mammals.

Also known as: Wood tick

Identification:

Adults have short mouthparts, eyes and festoons, with pale ornamentation on the dorsal shield. Females have a pale patterned scutum at the front; males have ornamentation across most of the dorsum.

Hosts: Humans, Dogs, Small mammals, Large mammals

Habitats: Woodland edges and trails, Grassland and shrubland

Photographs and visible features may be insufficient for definitive identification.

View species

Practical tick guidance

Related guidance

Use these VuxLore® resources alongside the location records and species profiles above.

Identify ticksSpecies, life stages and identification guidance Prevent and checkReduce exposure and perform thorough tick checks Remove ticksRemoval methods, tools and common problems Bites, symptoms and healthSourced guidance about bites, symptoms and disease

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