spp. ticks are vectors of R. slovaca and R. raoultii. D. marginatus and D. reticulatus tick bites are preferentially located in the scalp region, the majority of tick bites occur during the colder months. R. slovaca and R. raoultii are maintained within Dermacentor spp. by transovarial and transstadial transmission (courtesy of Heinz Mehlhorn, Duesseldorf University, Germany).