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Haemaphysalis leporispalustris
''Haemaphysalis leporispalustris'', the rabbit tick (occasionally known as the grouse tick), is a species of tick that is widely distributed in the Americas, stretching from Alaska to Argentina. ''H. leporispalustris'' is known to have one of the largest distributions for a tick originating in the New World. It is a three-host tick and a member of the family Ixodidae, commonly called the "hard ticks," and the genus ''Haemaphysalis''.〔(【引用サイトリンク】url=http://animaldiversity.ummz.umich.edu/accounts/Haemaphysalis_leporispalustris/classification/ )〕 Its common hosts are rabbits (such as ''Sylvilagus'' spp.), hares (''Lepus'' spp.), and sometimes ground-feeding birds. ''H. leporispalustris'' has a rigid scutum and a prominent capitulum projecting forward from its body and is often said to look like the "wood tick".〔(【引用サイトリンク】url=http://srd.alberta.ca/fishwildlife/WildlifeDiseases/documents/Rabbit_tick.pdf )〕 It has a hemimetabolic life cycle. ''H. leporispalustris'' does not play a prominent role in disease transmission in humans but is a vector for disease in other animals.
==Morphology==
''Haemaphysalis leporispalustris'' is extremely similar to the 155 other members of its genus. It lacks eyes and has palpi that are wider than they are long. The scutum lacks ornamentation on both males and females. The basis of its capitulum is of rectangular shape, rather than a hexagonal shape. The adult rabbit tick is approximately 1 millimeter in length and contains festoons or wrinkles at the base of its body.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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