Dermacentor reticulatus

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Dermacentor reticulatus (click on image to enlarge it)
Author(s): Rainer Altenkamp
Source: Wikimedia Commons

Dermacentor reticulatus Fabricius, 1794 - (ornate cow tick)

The tick is found in Europe and western Asia, where it transmits various diseases to domestic animals and humans. These include several species of Babesia (like canine and equine babesiosis), Theileria equi, Rickettsia spp., Francisella tularensis, Coxiella burnetii (Q-fever) and tick-borne encephalitis virus.

Apart from cattle, goats, sheep and dogs, wildlife is also a common host. This includes deer, foxes or wild boars, as well as rodents for the larval stage. The adult male has to take a blood meal before it is ready to mate. Host feeding is usually complete after 6-10 days. The tick then drops off for moulting or the adult female for egg laying. The complete life cycle from egg to adult, involving 3 hosts and 3 moults can last 1-1½ years.

Vernacular names
• Deutsch: Kuhzecke
• English: ornate cow tick
ornate dog tick

The adult female has a length of 5 mm (unfed) up to 16 mm (fully engorged). It has a marmorated back with an orange-red margin.

For a review see Földvári et al., 2016

Synonyms:
Dermacentor pictus