Species of Dermacentor are generally medium sized ticks ranging from 4-5mm in length when unfed. Article ii of the palps are generally broad and the basis capituli has straight lateral margins.
Other features present in Dermacentor include:
There are two possible species covered by this site:
Article iii of palps with prominent rear-facing spur; coxa I with large, equal, paired internal and external spur
Palp without spur; spurs on coxa I relatively short and divergent