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Trombidiidae
Trombidiidae, also known as red velvet mites, true velvet mites, or rain bugs, are small arachnids (eight-legged arthropods) found in plant litter and are known for their bright red color. While adults are typically in length, some, such as the genus ''Dinothrombium'', may reach up to . Their life pattern is in stages similar to other members of the Prostigmata: egg, pre-larva, larva, protonymph, deutonymph, tritonymph and adult (male or female). They usually have only one breeding cycle per year.Zhang, Zhi-Qiang (1998) Biology and ecology of trombidiid mites (Acari: Trombidioidea) Experimental & Applied Acarology 22:139–15PDF/ref> They are active predators as grown adults. As early instars they are often parasites of insects and other arachnids. One well known species from Europe, Asia, and North Africa is ''Trombidium holosericeum''. The systematics of this group has been in flux and many former subfamilies of this are now raised to families within the Trombidioidea. L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trombidiidae
Trombidiidae, also known as red velvet mites, true velvet mites, or rain bugs, are small arachnids (eight-legged arthropods) found in plant litter and are known for their bright red color. While adults are typically in length, some, such as the genus ''Dinothrombium'', may reach up to . Their life pattern is in stages similar to other members of the Prostigmata: egg, pre-larva, larva, protonymph, deutonymph, tritonymph and adult (male or female). They usually have only one breeding cycle per year.Zhang, Zhi-Qiang (1998) Biology and ecology of trombidiid mites (Acari: Trombidioidea) Experimental & Applied Acarology 22:139–15PDF/ref> They are active predators as grown adults. As early instars they are often parasites of insects and other arachnids. One well known species from Europe, Asia, and North Africa is ''Trombidium holosericeum''. The systematics of this group has been in flux and many former subfamilies of this are now raised to families within the Trombidioidea. L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trombidium Grandissimum
''Trombidium grandissimum'', commonly known as the giant red velvet mite, is a species of mite in the genus ''Trombidium'' in the family Trombidiidae. The mite is endemic to northern and central India, where it is called 'Badal kida', 'Bhir-buti', 'Birbhoti' or 'Bir Bahoit'. ''T. grandissimum'' is normally seen during the rainy season or after recent rain events, and therefore has the nickname of "rain bug". Description ''Trombidium grandissimum'' has a soft cushioning skin covered with bright red coloured hairs. These insects are terrestrial and live in soil burrows. They are found in dry, arid, desiccating regions. These mites are predatory in nature and feed on termites and eggs of insects, like ants. They share many similarities with the order Araneae. The insect is used therapeutically in the treatment of paralysis and sexual dysfunction. The mites are a bright red colour attributed to the pigment carotene. A study on the spider mite ''Tetranychus urticae'' shows that car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trombidium
''Trombidium'' is a genus of mite with about 30 described species. Species * '' Trombidium auroraense'' Vercammen-Grandjean, Van Driesche & Gyrisco, 1977 – New York * '' Trombidium breei'' Southcott, 1986 – Europe (host: ''Agapetes galathea'', Lepidoptera) * '' Trombidium brevimanum'' (Berlese, 1910) – Europe * '' Trombidium cancelai'' (Robaux, 1967) – Spain * '' Trombidium carpaticum'' (Feider, 1950) – France, Romania * † '' Trombidium clavipes'' Koch & Berendt, 1854 – Fossil: Oligocene * '' Trombidium dacicum'' (Feider, 1950) – Poland, Romania * '' Trombidium daunium'' (Paoli, 1937) – Italy * '' Trombidium fturum'' Schweizer, 1951 – Spain, Switzerland * '' Trombidium fuornum'' Schweizer, 1951 – Poland, Switzerland, France * '' Trombidium geniculatum'' (Feider, 1955) – Spain, Romania, Poland, Norway * '' Trombidium grandissimum'' (Koch, 1867) - India * '' Trombidium heterotrichum'' (Berlese, 1910) – Europe * ''Trombidium holosericeum'' (Linnaeus, 1758) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allothrombium
''Allothrombium'' is a genus of mites belonging to the family Trombidiidae Trombidiidae, also known as red velvet mites, true velvet mites, or rain bugs, are small arachnids (eight-legged arthropods) found in plant litter and are known for their bright red color. While adults are typically in length, some, such as t .... Species The following species are accepted in the genus ''Allothrombium'': * '' Allothrombium adustum'' * '' Allothrombium amiraeli'' * '' Allothrombium angulatum'' * '' Allothrombium athleticum'' * '' Allothrombium chanaanense'' * '' Allothrombium cincindelae'' * '' Allothrombium clavatum'' * '' Allothrombium crassicomum'' * '' Allothrombium delamarei'' * '' Allothrombium dipterae'' * '' Allothrombium epiphyllus'' * '' Allothrombium franklinimuelleri'' * '' Allothrombium fuligineum'' * '' Allothrombium gracile'' * '' Allothrombium guttatum'' * '' Allothrombium incarnatum'' * '' Allothrombium insigne'' * '' Allothrombium lawrencei'' * '' Allothrombium l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trombidium Holosericeum
''Trombidium holosericeum'' is a species of mite in the genus ''Trombidium''. It occurs in Europe, Asia, and North Africa and is commonly confused with other red mite species. Description This species is one of the largest mites in northern temperate zones, with a body length of about ). The soft, brightly red body is covered with fine hairs, giving it a velvety appearance. The small eyes are located on stalks. They have scissor-like chelicerae and their pedipalps are used as touch organs. Its bright red color results from carotenoids, warning predators about the toxicity of the mite (aposematism). Almost nothing is known about the toxic substances used, but they are probably contained within the integument. The specific name (zoology), specific epithet is derived from Ancient Greek , , "whole" and , , "silken". Biology While adults live freely and are often found wandering about, searching for small animals and insect eggs for food, the larvae try to find a host to attach the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinothrombium
''Dinothrombium'' is a genus of mites belonging to the family Trombidiidae Trombidiidae, also known as red velvet mites, true velvet mites, or rain bugs, are small arachnids (eight-legged arthropods) found in plant litter and are known for their bright red color. While adults are typically in length, some, such as t .... Species The following species are recognised in the genus ''Dinothrombium'': *'' Dinothrombium brevipilum'' *'' Dinothrombium colhuanum'' *'' Dinothrombium corpulentum'' *'' Dinothrombium crassipalpe'' (Trägårdh, 1904) *'' Dinothrombium dammermani'' Vitzhum, 1926 *'' Dinothrombium dugesi'' (Trouessart, 1894) *'' Dinothrombium eupectum'' (Leonardi, 1901) *'' Dinothrombium gigas'' (Trouessart, 1894) *'' Dinothrombium oparbellae'' (André, 1949) *'' Dinothrombium pandorae'' (Newell & Tevis, 1960) *'' Dinothrombium pedioculatum'' (André, 1927) *'' Dinothrombium southcotti'' Fain, 1991 *'' Dinothrombium superbum'' (Banks, 1910) *'' Dinothrombium tarsale' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trombiculidae
Trombiculidae (); commonly referred to in North America as chiggers and in Britain as harvest mites, but also known as berry bugs, bush-mites, red bugs or scrub-itch mites, are a family of mites. Chiggers are often confused with Tunga penetrans, jiggers – a type of flea. Several species of Trombiculidae in their larva stage bite their animal or human host and by embedding their mouthparts into the skin cause "intense irritation" or "a wheal response, wheal, usually with severe itching and dermatitis". Trombiculidae live in forests and grasslands and are also found in the vegetation of low, damp areas such as woodlands, berry bushes, orchards, along lakes and streams, and even in drier places where vegetation is low, such as lawns, golf courses, and parks. They are most numerous in early summer when grass, weeds, and other vegetation are heaviest. In their larval stage, they attach to various animals, including humans, and feed on skin, often causing itching. These relatives of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prostigmata
The Prostigmata is a suborder of mites belonging to the order Trombidiformes, which contains the "sucking" members of the "true mites" (Acariformes). Many species are notorious pests on plants. Well-known examples of prostigmatan plant parasites are species of the gall mites (Eriophyidae, e.g. the redberry mite '' Acalitus essigi''), Tarsonemidae (e.g. the cyclamen mite, '' Steneotarsonemus pallidus''), and the spider mites of the Tetranychidae (e.g. the two-spotted spider mite, ''Tetranychus urticae''). Other Prostigmata live as parasites on vertebrates (e.g. ''Demodex'' mites of the Demodecidae) or invertebrates (e.g. ''Polydiscia deuterosminthurus'' of the Tanaupodidae or the honeybee tracheal mite, ''Acarapis woodi'', of the Tarsonemidae). There are also some forms (e.g. Smarididae) that are predators of small invertebrates – including smaller Prostigmata – yet others have a more varied lifestyle (e.g. Tydeidae) or switch their food sources as they mature (e.g. Erythrae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instar
An instar (, from the Latin '' īnstar'', "form", "likeness") is a developmental stage of arthropods, such as insects, between each moult (''ecdysis''), until sexual maturity is reached. Arthropods must shed the exoskeleton in order to grow or assume a new form. Differences between instars can often be seen in altered body proportions, colors, patterns, changes in the number of body segments or head width. After shedding their exoskeleton (moulting), the juvenile arthropods continue in their life cycle until they either pupate or moult again. The instar period of growth is fixed; however, in some insects, like the salvinia stem-borer moth, the number of instars depends on early larval nutrition. Some arthropods can continue to moult after sexual maturity, but the stages between these subsequent moults are generally not called instars. For most insect species, an ''instar'' is the developmental stage of the larval forms of holometabolous (complete metamorphism) or nymphal forms o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Elford Leach
William Elford Leach Royal Society, FRS (2 February 1791 – 25 August 1836) was an English zoologist and marine biologist. Life and work Elford Leach was born at Hoe Gate, Plymouth, the son of an attorney. At the age of twelve he began a medical apprenticeship at the Royal Devon and Exeter Hospital, Devonshire and Exeter Hospital, studying anatomy and chemistry. By this time he was already collecting marine animals from Plymouth Sound and along the Devon coast. At seventeen he began studying medicine at St Bartholomew's Hospital in London, finishing his training at the University of Edinburgh before graduating Doctor of Medicine, MD from the University of St Andrews (where he had never studied). From 1813 Leach concentrated on his zoological interests and was employed as an 'Assistant Librarian' (what would later be called Assistant Keeper) in the Natural History Museum, London, Natural History Department of the British Museum, where he had responsibility for the zoological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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