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Ixodidae
The Ixodidae are the family of hard ticks or scale ticks, one of the three families of ticks, consisting of over 700 species. They are known as 'hard ticks' because they have a scutum or hard shield, which the other major family of ticks, the 'soft ticks' (Argasidae), lack. They are ectoparasites of a wide range of host species, and some are vectors of pathogens that can cause human disease. Description They are distinguished from the Argasidae by the presence of a scutum. In both the nymph and the adult, a prominent gnathosoma (or capitulum, mouth and feeding parts) projects forward from the animal's body; in the Argasidae, conversely, the gnathosoma is concealed beneath the body. They differ, too, in their lifecycle; Ixodidae that attach to a host bite painlessly and are generally unnoticed, and they remain in place until they engorge and are ready to change their skin; this process may take days or weeks. Some species drop off the host to moult in a safe place, whereas others r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tick
Ticks (order Ixodida) are parasitic arachnids that are part of the mite superorder Parasitiformes. Adult ticks are approximately 3 to 5 mm in length depending on age, sex, species, and "fullness". Ticks are external parasites, living by feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. The timing of the origin of ticks is uncertain, though the oldest known tick fossils are from the Cretaceous period, around 100 million years old. Ticks are widely distributed around the world, especially in warm, humid climates. Ticks belong to two major families, the Ixodidae or hard ticks, and the Argasidae, or soft ticks. ''Nuttalliella,'' a genus of tick from southern Africa is the only member of the family Nuttalliellidae, and represents the most primitive living lineage of ticks. Adults have ovoid/pear-shaped bodies (idiosomas) which become engorged with blood when they feed, and eight legs. Their cephalothorax and abdomen are completely fused. In addit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ixodes
''Ixodes'' is a genus of hard-bodied ticks (family Ixodidae). It includes important disease vectors of animals and humans (tick-borne disease), and some species (notably ''Ixodes holocyclus'') inject toxins that can cause paralysis. Some ticks in this genus may transmit the pathogenic bacterium ''Borrelia burgdorferi'' responsible for causing Lyme disease. Additional organisms that may be transmitted by ''Ixodes'' are parasites from the genus ''Babesia'', which cause babesiosis, and bacteria from the related genus ''Anaplasma'', which cause anaplasmosis. Species These species are recognised within the genus ''Ixodes'': *''Ixodes abrocomae'' Lahille, 1917 *''Ixodes acer'' Apanaskevich & Schenk, 2020 *''Ixodes acuminatus'' Neumann, 1901 *''Ixodes acutitarsus'' (Karsch, 1880) *''Ixodes affinis'' Neumann, 1899 *''Ixodes albignaci'' Uilenberg & Hoogstraal, 1969 *''Ixodes alluaudi'' Neumann, 1913 *'' Ixodes amarali'' Fonseca, 1935 *'' Ixodes amersoni'' Kohls, 1966 *'' Ixodes anat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dermacentor
''Dermacentor'' is a genus of ticks in the family Ixodidae, the hard ticks. The genus has a cosmopolitan distribution, with native species on all continents except Australia. Most occur in the Nearctic realm. Hosts of ''Dermacentor'' ticks include many large and small mammals, including horses, deer, cattle, lagomorphs, peccaries, porcupines, tapirs, desert bighorn sheep, and humans. The American dog tick (''D. variabilis'') is a member of the genus. ''Dermacentor'' species are vectors of many pathogens, including ''Rickettsia rickettsii'', which causes the disease Rocky Mountain spotted fever, ''Coxiella burnetii'', which causes Q fever, ''Anaplasma marginale'', which causes anaplasmosis in cattle, ''Francisella tularensis'', which causes tularemia, '' Babesia caballi'', which causes equine piroplasmosis, and the ''Flavivirus'' that causes Powassan encephalitis. ''Dermacentor'' ticks inject a neurotoxin that causes tick paralysis. Species As of 2019, about 41 species are pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amblyomma
''Amblyomma'' is a genus of hard ticks. Some are disease vectors, for example the Rocky Mountain spotted fever in Brazil or ehrlichiosis in the United States. This genus is the third largest in the family Ixodidae, with its species primarily occupying the torrid zones of all the continents. The centre of species diversity is on the American continent, where half of all the species occur. On this continent, ''Amblyomma'' species reach far beyond the torrid zone, up to the 40th parallel in the Northern Hemisphere, to the 50th parallel in the Southern Hemisphere, and even reaches the alpine zone of the Andes. They also occur in Eurasia, Africa and Australia. G. V. Kolonin, Fauna of Ixodid Ticks of the World (Acari, Ixodidae), Moscow 2009 Species * '' Am ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ixodid Wynaad
The Ixodidae are the family of hard ticks or scale ticks, one of the three families of ticks, consisting of over 700 species. They are known as 'hard ticks' because they have a scutum or hard shield, which the other major family of ticks, the 'soft ticks' (Argasidae), lack. They are ectoparasites of a wide range of host species, and some are vectors of pathogens that can cause human disease. Description They are distinguished from the Argasidae by the presence of a scutum. In both the nymph and the adult, a prominent gnathosoma (or capitulum, mouth and feeding parts) projects forward from the animal's body; in the Argasidae, conversely, the gnathosoma is concealed beneath the body. They differ, too, in their lifecycle; Ixodidae that attach to a host bite painlessly and are generally unnoticed, and they remain in place until they engorge and are ready to change their skin; this process may take days or weeks. Some species drop off the host to moult in a safe place, whereas others r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haemaphysalis
''Haemaphysalis'' is a genus of ticks, containing these species: *'' Haemaphysalis aborensis'' Warburton, 1913 *'' Haemaphysalis aciculifer'' Warburton, 1913 *'' Haemaphysalis aculeata'' Lavarra, 1904 *'' Haemaphysalis adleri'' Feldman-Muhsam, 1951 *'' Haemaphysalis anomala'' Warburton, 1913 *'' Haemaphysalis anomaloceraea'' Teng & Cui, 1984 *'' Haemaphysalis anoplos'' Hoogstraal, Uilenberg & Klein, 1967 *'' Haemaphysalis aponommoides'' Warburton, 1913 *'' Haemaphysalis asiatica'' (Supino, 1897) *'' Haemaphysalis atheruri'' Hoogstraal, Trapido & Kohls, 1965 *'' Haemaphysalis bancrofti'' Nuttall & Warburton, 1915 *'' Haemaphysalis bandicota'' Hoogstraal & Kohls, 1965 *'' Haemaphysalis bartelsi'' Schulze, 1938 *'' Haemaphysalis bequaerti'' Hoogstraal, 1956 *'' Haemaphysalis birmaniae'' Supino, 1897 *'' Haemaphysalis bispinosa'' Neumann, 1897 *'' Haemaphysalis bochkovi'' Apanaskevich & Tomlinson, 2019Dmitry Apanaskevich and Jackson A. Tomlinson. 2019. Description of four new species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmiomma
''Cosmiomma'' is a genus of ticks first discovered by Paul Schulze in 1919.Paul Schulze. 1919. Bestimmungstabelle für das Zeckengenus ''Hyalomma'', Koch. ''Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin'', 5:189–196, http://biostor.org/reference/127288, last accessed 24 Jun 2019. It is monospecific, being represented by the single species ''Cosmiomma hippopotamensis''. It was first described in 1843 by Henry Denny from specimens collected from a hippopotamus in Southern Africa, and has been called "one of the most unusual, beautiful, and rare tick species known to the world." Taxonomy and systematics The taxonomic position of the genus ''Cosmiomma'' has been unstable since the male and female of the type species were first described as two separate species. As late as 1997, two published studies based on the type species' morphology concluded separately that ''Cosmiomma'' was most closely related to ''Rhipicephalus'' species ticks and that ''Cosmiomma'' w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argasidae
The Argasidae are the family of soft ticks, one of the three families of ticks. The family contains 193 species, although the composition of the genera is less certain, and more study is needed before the genera can become stable. The currently accepted genera are '' Antricola'', '' Argas'', '' Nothoaspis'', ''Ornithodoros'', and '' Otobius''. The Argasidae are very common in South Asia, along with 96 other species of ticks, making South Asia the region with the highest biodiversity of ticks worldwide. Soft ticks are resistant to desiccation and can live for several years in arid conditions. Physical characteristics Soft ticks lack the hard scutum present in the hard ticks (Ixodidae). The gnathosoma (or capitulum, the mouthparts-bearing structure) is located on the underside of the animal's body and is not readily visible, while in the Ixodidae, the gnathosoma projects forward from the body. The lateral edges of the body are rounded. See also *Ticks of domestic animals Ticks of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margaropus
''Margaropus'' is a genus of ticks, characterized as inornate, having eyes, lacking festoons, and with the legs of the male increasing in size from pair I to IV with the segments enlarged, giving them a beaded appearance, from which the genus name was taken, ''margaritopus'' signifying beady-legged;Don R. Arthur. 1960. ''Ticks, Part V, The Genera Dermacentor, Anocentor, Cosmiomma, Boophilus, Margaropus'', Cambridge University Press, pp. 226-247; https://books.google.com/books?id=k688AAAAIAAJ&pg=PA226&lpg=PA226&dq=margaropus+ticks&source=bl&ots=c4TelGTqdi&sig=hsjNlfIVkrRXpofXqpXruH8USuM&hl=en&sa=X&ved=0ahUKEwiA17SCh_zbAhXjp1kKHS24B_k4ChDoAQhDMAE#v=onepage&q=margaropus%20ticks&f=false, accessed June 30, 2018. the species name memorialized naturalist and entomologist Wilhelm von Winthem. The genus currently includes three species:Animal Diversity Web: ''Margaropus'', https://animaldiversity.org/accounts/Margaropus/classification/#Margaropus, accessed June 30, 2018. *''Margaropus rei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scute
A scute or scutum (Latin: ''scutum''; plural: ''scuta'' "shield") is a bony external plate or scale overlaid with horn, as on the shell of a turtle, the skin of crocodilians, and the feet of birds. The term is also used to describe the anterior portion of the mesonotum in insects as well as some arachnids (e.g., the family Ixodidae, the scale ticks). Properties Scutes are similar to scales and serve the same function. Unlike the scales of lizards and snakes, which are formed from the epidermis, scutes are formed in the lower vascular layer of the skin and the epidermal element is only the top surface . Forming in the living dermis, the scutes produce a horny outer layer that is superficially similar to that of scales. Scutes will usually not overlap as snake scales (but see the pangolin). The outer keratin layer is shed piecemeal, and not in one continuous layer of skin as seen in snakes or lizards. The dermal base may contain bone and produce dermal armour. Scutes with a bony ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyalomma
''Hyalomma'' is a genus of hard-bodied ticks common in Asia, Europe, and North Africa. They are also found in Southern Africa. The name is derived from Greek: hyalos (ὕαλος) crystal, glass; and omma (oμμα) eye. The genus is believed to originate from the area of the present-day Iran or the southern part of the former Soviet Union, having then had spread further into Asia, including the Middle East, and to southern Europe and Africa. ''Hyalomma'' are larger in size and do not have protective shields (indistinct festoons), but have eyes and banded legs. ''Hyalomma'' species are difficult to identify due to their hybridization and genetic and morphological variations, caused by harsh environmental conditions and lack of food sources. ''Hyalomma'' species are the only ticks to live in such harsh desert conditions. With few hosts available, they are required to be active as soon as a potential host is sensed. Adult ''Hyalomma'' can bite humans and transmit serious pathogens. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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