The Genus Rhipicephalus (Acari, Ixodidae): A Guide to the Brown Ticks of the WorldTicks in the genus Rhipicephalus include many important vectors of animal and human pathogens, but many species are notoriously difficult to identify, particularly at immature stages. This reference provides identification keys for adult ticks from the Afrotropical regions and elsewhere. For the nymphs and larvae, unique plates have been compiled in which line drawings of the capitula of similar species are grouped together to facilitate