TICKS OF THE PACIFIC SOUTHWEST

There are 48 tick species in the Pacific Southwest with a number of tick species that commonly carry and spread pathogens through biting. Ticks are divided into two main families: hard ticks (Ixodidae) and soft ticks (Argasidae). The tick species identified below pose health risks for both humans and animals in the Pacific Southwest.

WESTERN BLACKLEGGED TICK
Ixodes pacificus

AMERICAN DOG TICK
Dermacentor variabilis

ROCKY MOUNTAIN WOOD TICK
Dermacentor andersoni

BROWN DOG TICK
Rhipicephalus sanguineus

PACIFIC COAST TICK
Dermacentor occidentalis

SOFT TICK
Ornithodoros spp.

PAJAHUELLO TICK
Ornithodoros coriaceus

Lyme Disease Awareness Month: Lunch & Learn Series from PacVec

Learn more about ticks in the Pacific Southwest and tick-borne disease activities at PacVec in our Lunch and Learn presentation. The resources provided in this video are available in “Tick Resources” .