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Otobius
''Otobius'' is a genus in the soft-bodied tick family, Argasidae. While similar to the genus ''Ornithodoros'' it is characterized by a vestigial hypostome in adults, despite being developed in nymphs, in addition to the absence of both eyes and hood. Species Three species of ''Otobius'' are recognized.''Otobius'' N.Banks, 1912 in GBIF Secretariat (2017). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2019-01-22.Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2019. The Animal Diversity Web (online). Accessed at https://animaldiversity.org/accounts/Otobius/classification/ *'' Otobius lagophilus'' Cooley & Kohls, 1940 *''Otobius megnini ''Otobius megnini'', also known as the spinose ear tick, is a soft-bodied tick that is only parasitic in the larval and nymphal stages. As its common name suggests, the spinose ear tick's parasitic forms are usually found within the ears of the d ...'' Dugès, 1883 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otobius Sparnus
''Otobius'' is a genus in the soft-bodied tick family, Argasidae. While similar to the genus ''Ornithodoros'' it is characterized by a vestigial hypostome in adults, despite being developed in nymphs, in addition to the absence of both eyes and hood. Species Three species of ''Otobius'' are recognized.''Otobius'' N.Banks, 1912 in GBIF Secretariat (2017). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2019-01-22.Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2019. The Animal Diversity Web (online). Accessed at https://animaldiversity.org/accounts/Otobius/classification/ *'' Otobius lagophilus'' Cooley & Kohls, 1940 *''Otobius megnini ''Otobius megnini'', also known as the spinose ear tick, is a soft-bodied tick that is only parasitic in the larval and nymphal stages. As its common name suggests, the spinose ear tick's parasitic forms are usually found within the ears of the d ...'' Dugès, 1883 * ... [...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] |
Otobius Lagophilus
''Otobius lagophilus'' is a soft-bodied tick that is only parasitic in the larval and nymphal stages. The tick's parasitic forms are usually found within the ears of the definitive host particularly rabbits and in rare cases cats. Habitat ''Otobius lagophilus'' ticks are generally associated with semiarid or arid environments such as those found in the Southwestern United States. They have been observed in California, Colorado, Idaho, Montana, Nevada, Oregon, and Wyoming, but have in isolated cases been seen as far north as Alberta, Canada. Life cycle ''Otobius lagophilus'' has a lifecycle similar to ''Otobius megnini ''Otobius megnini'', also known as the spinose ear tick, is a soft-bodied tick that is only parasitic in the larval and nymphal stages. As its common name suggests, the spinose ear tick's parasitic forms are usually found within the ears of the d ...'', only being parasitic in the nymphal stage. The most common hosts are rabbits, with the ticks attaching th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otobius Megnini
''Otobius megnini'', also known as the spinose ear tick, is a soft-bodied tick that is only parasitic in the larval and nymphal stages. As its common name suggests, the spinose ear tick's parasitic forms are usually found within the ears of the definitive host. This tick has a worldwide distribution, with common hosts that include horses, cattle, sheep, goats, and dogs. Importance Spinose ear ticks are a constant source of annoyance and irritation for their definitive hosts. Their tendency to occur in large numbers can cause ulceration of the inner ear, high sensitivity of the ears, large amounts of blood loss, and even deafness. Heavily infested animals often shake and rub their heads, which can cause their outer ears to become excoriated and raw. Several cases of human infestation have been reported, and the tick has been incriminated in some instances of pathogen transmission. Anatomy As with many soft ticks, the mouthparts of ''O. megnini'' are not visible from the dorsa ... [...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] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithodoros
''Ornithodoros'' is a genus in the soft-bodied tick family, Argasidae. Physiology The opening between the midgut and hindgut has been lost, making the ticks unable to pass digestive waste products out of their bodies. Taxonomy The Linnean name derives from ''ornithos'' ( gr, ὄρνιθος) and ''doros'' ( gr, Δωρόν), meaning "bird" and "gift", respectively. It contains these species: *'' Ornithodoros alactagalis'' Issaakjan, 1936 *†''Ornithodoros antiquus'' Poinar, 1995 *''Ornithodoros apertus'' Walton, 1962 *''Ornithodoros arenicolous'' Hoogstraal, 1953 *''Ornithodoros asperus'' Warburton, 1918 *''Ornithodoros atacamensis'' Muñoz-Leal, Venzal & González-Acuña, 2016 *'' Ornithodoros brasiliensis'' Aragão, 1923 *''Ornithodoros cholodkovskyi'' Pavlovsky, 1930 *''Ornithodoros compactus'' Walton, 1962 *''Ornithodoros coniceps'' Canestrini, 1890 *''Ornithodoros costalis'' Diatta, Bouattour, Durand, Renaud & Trape, 2013 *''Ornithodoros coriaceus'' Koch, 1844 *''Ornith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vestigial
Vestigiality is the retention, during the process of evolution, of genetically determined structures or attributes that have lost some or all of the ancestral function in a given species. Assessment of the vestigiality must generally rely on comparison with homologous features in related species. The emergence of vestigiality occurs by normal evolutionary processes, typically by loss of function of a feature that is no longer subject to positive selection pressures when it loses its value in a changing environment. The feature may be selected against more urgently when its function becomes definitively harmful, but if the lack of the feature provides no advantage, and its presence provides no disadvantage, the feature may not be phased out by natural selection and persist across species. Examples of vestigial structures (also called degenerate, atrophied, or rudimentary organs) are the loss of functional wings in island-dwelling birds; the human vomeronasal organ; and the hin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypostome (tick)
The hypostome (also called the maxilla, radula, or Labium (insect), labium) is a Osseous tissue, calcified harpoon-like structure near the mouth area of certain Parasitism, parasitic arthropods including ticks, that allows them to anchor themselves firmly in place on a host (biology), host vertebrate while sucking blood. The hypostome being present in almost all tick families suggests that hematophagy is the ancestral condition, as is the fact that life stages that do not feed on blood lack the organ. Some ticks of the Ixodidae family (hard ticks) secret a cement to strengthen the attachment. See also *Mandible (arthropod) References Arachnid anatomy {{Arthropod-anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glen M
A glen is a valley, typically one that is long and bounded by gently sloped concave sides, unlike a ravine, which is deep and bounded by steep slopes. Whittow defines it as a "Scottish term for a deep valley in the Highlands" that is "narrower than a strath".. The word is Goidelic in origin: ''gleann'' in Irish and Scottish Gaelic, ''glion'' in Manx. The designation "glen" also occurs often in place names. Etymology The word is Goidelic in origin: ''gleann'' in Irish and Scottish Gaelic, ''glion'' in Manx. In Manx, ''glan'' is also to be found meaning glen. It is cognate with Welsh ''glyn''. Examples in Northern England, such as Glenridding, Westmorland, or Glendue, near Haltwhistle, Northumberland, are thought to derive from the aforementioned Cumbric cognate, or another Brythonic equivalent. This likely underlies some examples in Southern Scotland. As the name of a river, it is thought to derive from the Irish word ''glan'' meaning clean, or the Welsh word ''gleindid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfredo Dugès
Alfredo Dugès (birth name- Alfred Auguste Delsescautz Dugès); (16 April 1826 – 7 January 1910) was a French-born, Mexican physician and naturalist born in Montpellier. He was the son of zoologist Antoine Louis Dugès (1797-1838). Alfredo Dugès is largely remembered for his extensive studies of Mexican herpetology. He studied medicine at the University of Paris, and in 1852 emigrated to Mexico. He settled in Guanajuato, where he worked as an Obstetrics, obstetrician, also giving classes in natural history at the ''Escuela de Estudios Superiores de Guanajuato''. With his brother, Entomology, entomologist Eugenio Dugès (1826-1895), he organized frequent field trips in order to collect specimens. Dugès published numerous scientific papers in several fields including herpetology, botany, and entomology. At Guanajuato, he was director of the local museum, later named the ''Museo Alfredo Dugès'' (:es:Museo Alfredo Dugès, es) in his honor. In Mexico, he described 40 new species of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acari Genera
Mites are small arachnids (eight-legged arthropods). Mites span two large orders of arachnids, the Acariformes and the Parasitiformes, which were historically grouped together in the subclass Acari, but genetic analysis does not show clear evidence of a close relationship. Most mites are tiny, less than in length, and have a simple, unsegmented body plan. The small size of most species makes them easily overlooked; some species live in water, many live in soil as decomposers, others live on plants, sometimes creating galls, while others again are predators or parasites. This last type includes the commercially destructive ''Varroa'' parasite of honey bees, as well as scabies mites of humans. Most species are harmless to humans, but a few are associated with allergies or may transmit diseases. The scientific discipline devoted to the study of mites is called acarology. Evolution and taxonomy The mites are not a defined taxon, but is used for two distinct groups of arachnids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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