n=162 
American Dog Tick (Dermacentor variabilis) 
N = 181 
Brown Dog Tick (Rhipicephalus sanguineus) 
n=43 
Lone Star Tick (Amblyomma americanum) 
n = 4  * Isolated sightings without evidence of established populations
Counties Submitting Ticks 
*Ticks were collected through passive surveillance from voluntary submissions by veterinary clinics and the public through-out Colorado. * Tick images are credited to CDC at www.cdc.gov/ticks/index.html
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