books.google.com.au - Ticks 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...http://books.google.com.au/books/about/The_Genus_Rhipicephalus_Acari_Ixodidae.html?id=-tfXTrL9-skC&utm_source=gb-gplus-shareThe Genus Rhipicephalus (Acari, Ixodidae)
