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''Rhipicephalus'' is a genus of ticks in the family Ixodidae, the hard ticks. Most are native to tropical Africa.〔Olwoch, J. M., et al. (2007). (Climate change and the genus ''Rhipicephalus'' (Acari: Ixodidae) in Africa. ) ''Onderstepoort J Vet Res'' 74(1), 45-72.〕 Species are difficult to distinguish from one another because most are quite similar, but at the same time, individuals of one particular species can be quite variable.〔Beati, L. and J. E. Keirans. (2001). (Analysis of the systematic relationships among ticks of the genera ''Rhipicephalus'' and ''Boophilus'' (Acari: Ixodidae) based on mitochondrial 12S ribosomal DNA gene sequences and morphological characters. ) ''The Journal of Parasitology'' 87(1), 32.〕 Most of the characters used to identify species pertain to male and immature specimens, and "females are sometimes simply impossible to identify".〔 Many ''Rhipicephalus'' are of economic, medical, and veterinary importance because they are vectors of pathogens. They transmit the pathogens that cause the animal and human diseases East Coast fever, anaplasmosis, babesiosis, rickettsiosis,〔 Boutonneuse fever, Lyme disease, Q fever, Rocky Mountain spotted fever, and Crimean–Congo hemorrhagic fever,〔(''Rhipicephalus''. ) Tick Identification Key. University of Lincoln.〕 and they inject a neurotoxin in their bite which causes tick paralysis.〔 Familiar species of the genus include the brown dog tick (''R. sanguineus''). There are about 74 to 75 species in this genus.〔〔 ==Species== * ''Rhipicephalus annulatus'' Say, 1821 * ''Rhipicephalus appendiculatus'' Neumann 1901 – brown ear tick * ''Rhipicephalus aquatilis'' Walker, Keirans & Pegram, 1993 * ''Rhipicephalus armatus'' Pocock, 1900 * ''Rhipicephalus arnoldi'' Theiler & Zumpt, 1949 * ''Rhipicephalus bequaerti'' Zumpt, 1949 * ''Rhipicephalus bergeoni'' Morel & Balis, 1976 * ''Rhipicephalus boueti'' Morel, 1957 * ''Rhipicephalus bursa'' Canestrini & Fanzago, 1878 * ''Rhipicephalus camicasi'' Morel, Mouchet & Rodhain, 1976 * ''Rhipicephalus capensis'' Koch, 1844 * ''Rhipicephalus carnivoralis'' Walker, 1966 * ''Rhipicephalus complanatus'' Neumann, 1911 * ''Rhipicephalus compositus'' Neumann, 1897 * ''Rhipicephalus congolensis'' Apanaskevich, Horak & Mulumba-Mfumu, 2013〔Apanaskevich, D. A., et al. 2013. (A new species of ''Rhipicephalus'' (Acari: Ixodidae), a parasite of red river hogs and domestic pigs in the Democratic Republic of Congo. ) ''Journal of Medical Entomology'' 50(3), 479-84.〕 * ''Rhipicephalus cuspidatus'' Neumann, 1906 * ''Rhipicephalus decoloratus'' Koch, 1844 * ''Rhipicephalus deltoideus'' Neumann, 1910 * ''Rhipicephalus distinctus'' Bedford 1932 * ''Rhipicephalus duttoni'' Neumann, 1907 * ''Rhipicephalus dux'' Dönitz, 1910 *''Rhipicephalus evertsi'' Neumann, 1897 * ''Rhipicephalus exophthalmos'' Keirans & Walker 1993 * ''Rhipicephalus follis'' Dönitz, 1910 * ''Rhipicephalus fulvus'' Neumann, 1913 * ''Rhipicephalus geigyi'' Aeschlimann & Morel, 1965 * ''Rhipicephalus gertrudae'' Feldman-Muhsam, 1960 * ''Rhipicephalus glabroscutatum'' Du Toit, 1941 * ''Rhipicephalus guilhoni'' Morel & Vassiliades, 1963 * ''Rhipicephalus haemaphysaloides'' Supino, 1897 * ''Rhipicephalus hoogstraali'' Kolonin, 2009 * ''Rhipicephalus humeralis'' Rondelli, 1926 * ''Rhipicephalus hurti'' Wilson, 1954 * ''Rhipicephalus interventus'' Walker, Pegram & Keirans, 1995 * ''Rhipicephalus jeanneli'' Neumann 1913 * ''Rhipicephalus kochi'' Dönitz, 1905 * ''Rhipicephalus kohlsi'' Hoogstraal & Kaiser, 1960 * ''Rhipicephalus leporis'' Pomerantsev, 1946 * ''Rhipicephalus longiceps'' Warburton 1912 * ''Rhipicephalus longicoxatus'' Neumann, 1905 * ''Rhipicephalus longus'' Neumann, 1907 * ''Rhipicephalus lounsburyi'' Walker, 1990 * ''Rhipicephalus lunulatus'' Neumann 1907 * ''Rhipicephalus maculatus'' Neumann, 1901 * ''Rhipicephalus masseyi'' Nuttall & Warburton 1908 * ''Rhipicephalus microplus'' Canestrini, 1888 – southern cattle tick * ''Rhipicephalus moucheti'' Morel, 1965 * ''Rhipicephalus muehlensi'' Zumpt, 1943 * ''Rhipicephalus muhsamae'' Morel & Vassiliades, 1965 * ''Rhipicephalus neumanni'' Walker, 1990 * ''Rhipicephalus nitens'' Neumann, 1904 * ''Rhipicephalus oculatus'' Neumann 1901 * ''Rhipicephalus oreotragi'' Walker & Horak, 2000 * ''Rhipicephalus pilans'' Schulze, 1935 * ''Rhipicephalus planus'' Neumann, 1907 * ''Rhipicephalus praetextatus'' Gerstäcker, 1873 * ''Rhipicephalus pravus'' Dönitz, 1910 * ''Rhipicephalus pseudolongus'' Santos Dias, 1953 * ''Rhipicephalus pulchellus'' Gerstäcker, 1873 * ''Rhipicephalus pumilio'' Schulze, 1935 * ''Rhipicephalus punctatus'' Warburton 1912 * ''Rhipicephalus pusillus'' Gil Collado, 1936 * ''Rhipicephalus ramachandrai'' Dhanda, 1966 * ''Rhipicephalus rossicus'' Yakimov & Kol-Yakimova, 1911 * ''Rhipicephalus sanguineus'' Latreille, 1806 – brown dog tick * ''Rhipicephalus scalpturatus'' Santos Dias, 1959 * ''Rhipicephalus schulzei'' Olenev 1929 * ''Rhipicephalus sculptus'' Warburton 1912 * ''Rhipicephalus senegalensis'' Koch, 1844 * ''Rhipicephalus serranoi'' Santos Dias 1950 * ''Rhipicephalus simpsoni'' Nuttall 1910 * ''Rhipicephalus simus'' Koch, 1844 * ''Rhipicephalus sulcatus'' Neumann, 1908 * ''Rhipicephalus supertritus'' Neumann, 1907 * ''Rhipicephalus theileri'' Bedford & Hewitt, 1925 * ''Rhipicephalus tricuspis'' Dönitz, 1906 * ''Rhipicephalus turanicus'' Pomerantsev 1936 * ''Rhipicephalus warburtoni'' Walker & Horak, 2000 * ''Rhipicephalus zambeziensis'' Walker, Norval & Corwin, 1981 * ''Rhipicephalus zumpti'' Santos Dias, 1950 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rhipicephalus」の詳細全文を読む スポンサード リンク
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