English: Dermacentor female dorsal. 1- Medium sized ticks, body and mouthparts approximately 4mm long. 2- Mouthparts are same length as the basis capituli; their width is as wide as or wider than the basis capituli; the basis capituli has straight lateral margins. 3- Scutum and conscutum of most species has a conspicuous pattern of white enamel on a dark brown background. 4- Legs are without pale rings. 5- Eyes are present (distinct in most species) 6- Posterior body margin has a series of grooves forming a pattern of festoons (not clear in engorged females).