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Harvest Mite
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 host and by embedding their mouthparts into the skin cause "intense irritation", or "a wheal response, wheal, usually with severe itching and dermatitis". Humans are possible hosts. 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. ... [...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 no more than in length, some species can grow larger and the largest, including the African ''Dinothrombium tinctorum'' and Indian ''Trombidium grandissimum'', may exceed . This also makes them the largest mites, if disregarding ticks engorged after feeding; unlike those, ''D. tinctorum'' and ''T. grandissimum'' are harmless to humans. 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 larvae they are often parasites of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrombicula
''Neotrombicula'' is a genus of mites in the family Trombiculidae. Species of this genus are found throughout Europe and North America. Species ''BioLib'' includes: # '' Neotrombicula absoluta'' Schluger, 1966 # '' Neotrombicula acomys'' (Radford, 1957) # '' Neotrombicula aeretes'' Hsu & Yang, 1985 # '' Neotrombicula agriotricha'' Stekolnikov, 1994 # '' Neotrombicula alexandrae'' Stekolnikov, 1993 # '' Neotrombicula anthiana'' Kolebinova, 1969 # '' Neotrombicula arcuata'' Wen & Jiang, 1984 # '' Neotrombicula austriaca'' Kepka, 1964 # '' Neotrombicula autumnalis'' (Shaw, 1790) # '' Neotrombicula balcanica'' Kolebinova, 1973 # '' Neotrombicula baschkirica'' Kudryashova, 1998 # '' Neotrombicula bisignata'' (Ewing, 1929) # '' Neotrombicula bondari'' Kudryashova, 1994 # '' Neotrombicula boroveza'' Vercammen-Grandjean, Kolebinova, Göksu & Kepka, 1971 # '' Neotrombicula carpathica'' Schluger & Vysotzkaja, 1970 # '' Neotrombicula centrafricana'' Goff, 1995 # '' Neotrombicula comata'' Do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptotrombidium
''Leptotrombidium'' () is a genus of mites in the family Trombiculidae, that are able to infect humans with scrub typhus (''Orientia tsutsugamushi'' infection) through their bite. The larval form (called chiggers) feeds on rodents, but also occasionally humans and other large mammals. They are related to the Trombicula, harvest mites of the North America and Europe. Originally, rodents were thought to be the main reservoir for ''O. tsutsugamushi'' and the mites were merely Vector (epidemiology), vectors of infection: that is, the mites only transferred the contagion from the rodents to humans. However, the mites are now known to only feed once in their lifetimes, which means that transmission from rodent to human via the mites is impossible (for it to have been possible, the mite would have to feed at least twice, once on the infected rodent and again on the human who would then be infected). Instead, the bacterium persists in the mites through transovarial transmission, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
