In recent years, there has been much progress in our understanding of the cataloguing and classification, and the phylogeny and evolution of ticks. Alternations at the generic level in soft ticks (Argasidae) were introduced. One s

ubfamily, the Hyalomminae, had been combined with Rhipicephalinae, and the Bothriocrotoninae n. subfamily had been created recently in hard ticks (Ixodidae). The Bothriocroton n. genus was created to house an earlydiverging lineage ofendemic Australian ticks that used to be in the genus Aponomma (ticks of reptiles), and the Cornupalpatum n. genus was created for a fossil species, Cornupalpatum burmanicum Poinar & Brown, 2003.The genus Boophilus became a subgenus of the genus Rhipicephalus, and the genus Anocentor was sunk into the genus Dermacentor. The genus Aponommain part became a synonym of Bothriocroton and in part a synonym of Amblyomma. Thus, the name of Anocentor and Aponomma is no longer a valid genus name, respectively. The numbers of tick species are recalculated according to the nomenclature revised. In total, there are 3 families 18 genera and 897 species of ticks in the world, while the Chinese tick fauna consists of 119 speciesin 2 families 10 genera. We also introduced the main hypotheses about the phylogeny of ticks and discussed some questions in it. The effective understanding of the tick phylogeny relies on the totalevidence approach combining the morphological characters and molecular data, and the references that concern the relationships between ticks and different hosts, zoogeography, palaeontology and comparative parasitology.