The females of this tick species measure 3 to 4 millimetres, swelling to 10 millimetres when fully engorged with blood after feeding. When engorged, their colour lightens from black to pale grey. The males are smaller, growing to around 2.5 millimetres. The body of the male tick is covered by a hard scutum, while in females the scutum covers about one-third of the body.
Taiga ticks are common throughout forested areas of Eurasia. They are particularly numerous in damp habitats, preferring moderately shaded deciduous and mixed forests with tall grass and thick undergrowth. They are often found in ravines, forest clearings, willow thickets and along the banks of forest streams.
Taiga ticks can transmit various diseases to human beings, including Lyme disease and tick-borne encephalitis.