A genus of hard ticks (family Ixodidae), many species of which are parasitic on humans and animals; they are characterized by an anal groove surrounding the anus anteriorly, absence of eyes and festoons, and marked sexual dimorphism; about 40 species have been described from North America. [G. i., sticky, like bird-lime, fr. ixos, mistletoe, + eidos, form]
- I. cookei a species that is a vector of Powassan virus in Canada.
- I. dammini a species that is a vector of Lyme disease (Borrelia burgdorferi) and human babesiosis (Babesia microti) in the U.S. Bites causing Lyme disease in humans are from nymphal ticks about the size of a pencil point, infected with B. burgdorferi from white-footed field mice. Adult ticks complete their two-year life cycle feeding on deer.
- I. pacificus the California black-legged tick, a species that is the vector of Lyme disease in the western U.S.
- I. persulcatus the taiga tick, a Eurasian species that is a vector for Russian spring-summer encephalitis and Lyme disease.
- I. redikorzevi a Eurasian species that has caused human toxicosis in Israel.
- I. ricinus the castor bean tick, a Eurasian species that infests cattle, sheep, and wild animals, and transmits the piroplasm Babesia divergens, the tick-borne encephalitis virus, and the Lyme disease bacterium.
- I. scapularis the black-legged or shoulder tick, a species found on animals in the southern and eastern U.S.; is the primary vector of Lyme disease in the U.S.
- I. spinipalpis a species parasitic on wild rodents in British Columbia and the vector of Powassan virus in mice of the genus Peromyscus.

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Ix·o·des .ik-'sō-(.)dēz n a widespread genus of ixodid ticks (as the deer tick) many of which are bloodsucking parasites of humans and animals, and sometimes cause paralysis or other severe reactions

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a genus of widely distributed parasitic ticks. Several species are responsible for transmitting Lyme disease, tularaemia, Queensland tick typhus, and Russian spring-summer encephalitis. The bite of a few species can give rise to a serious paralysis, caused by a toxin in the tick's saliva.

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Ix·o·des (ik-soґdēz) [Gr. ixōdes like bird-lime] a genus of parasitic ticks of the family Ixodidae.

Medical dictionary. 2011.

Look at other dictionaries:

  • Ixodes — ricinus …   Wikipédia en Français

  • Ixodes — ? Ixodes С …   Википедия

  • ixodes — género de arácnidos que comprende las garrapatas y otros ácaros parásitos de los animales y del hombre. Algunas especies como el I. ricinus y el I. scapularis son transmisoras de enfermedades como la babesiosis fotografía [véase… …   Diccionario médico

  • Ixodes — Ix*o des, n. [NL., fr. Gr. ? like birdlime; ? birdlime + e i^dos form.] (Zo[ o]l.) A genus of parasitic Acarina, which includes various species of ticks. See {Tick}, the insect. [1913 Webster] …   The Collaborative International Dictionary of English

  • Ixōdes — (Holzbock), so v.w. Zecke, s.d …   Pierer's Universal-Lexikon

  • Ixōdes — Ixōdes, die Zecke; Ixodidae (Zecken), Familie aus der Ordnung der Milben; s. Zecken …   Meyers Großes Konversations-Lexikon

  • Ixodes —   Ixodes …   Wikipedia Español

  • Ixodes — Ixodes …   Wikipédia en Français

  • Ixodes — Zecken erwachsene Zecke (Ixodes hexagonus) Systematik Stamm: Gliederfüßer (Arthropoda) …   Deutsch Wikipedia

  • Ixodes — noun type genus of the family Ixodidae • Syn: ↑genus Ixodes • Hypernyms: ↑arthropod genus • Member Holonyms: ↑Ixodidae, ↑family Ixodidae • Member Meronyms: ↑ …   Useful english dictionary

  • Ixodes — Taxobox name = Ixodes image caption = Australian Paralysis Tick Ixodes holocyclus image width = 250px regnum = Animalia phylum = Arthropoda classis = Arachnida ordo = Acari familia = Ixodidae genus = Ixodes genus authority = subdivision ranks =… …   Wikipedia

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