Genus
Dermacentor (Dog ticks)
Dermacentor variabilis. Photo: (c) Karl Kroeker, some rights reserved (CC BY-NC)
Dermacentor, also known as the American Levi tick, is a genus of ticks in the family Ixodidae, the hard ticks. The genus has a cosmopolitan distribution, with native species on all continents except Australia. Most occur in the Nearctic ecozone.