Rust mite Aceria anthocoptes
Adult deer tick

The Acarina, or Acari, are the mites and ticks. They are an order of Arachnids.

Their fossil history goes back to the Devonian era. Most acarines are tiny: less than a millimetre. It is estimated that over 50,000 species have been described, but a million or more species may be currently living. The study of mites and ticks is called acarology.[1]

Acarines live in practically every habitat, and include aquatic (freshwater and sea water) and terrestrial species. They outnumber other arthropods in the soil and detritus. Many are parasitic, and they affect both vertebrates and invertebrates. Most parasitic forms are external parasites, while the free living forms are generally predators and may even be used to control undesirable arthropods. Others help to break down forest litter and dead organic matter such as skin cells. Others still are herbivorous and may damage crops. Damage to crops is perhaps the most costly economic effect of mites, especially by the spider mites and their relatives, earth mites, thread-footed mites and the gall and rust mites.

Some parasitic forms affect humans and other mammals, causing damage by their feeding, and can even be vectors of diseases such as scrub typhus and rickettsia. A well-known effect of mites on humans is as an allergen which stimulates asthma. Predatory mites may be used in pest control and herbivorous mites used to attack weeds. A positive contribution of the Acari is their normal functioning in ecosystems, especially their roles in the decomposer subsystem.[1]


Mites parasitising a harvestman

A hugely successful group with a large number of species. Mites are among the most diverse and successful of all the invertebrate groups, but because of their small size (most are microscopic) go largely unnoticed. They have exploited many habitats. Many live freely in the soil or water, but there are also a large number of species that live as parasites on plants, animals, and some that feed on mould (fungi).

Other Languages
العربية: قراديات
asturianu: Acari
azərbaycanca: Gənələr
башҡортса: Талпандар
беларуская: Кляшчы
български: Акари
brezhoneg: Akarian
català: Àcar
čeština: Roztoči
Cymraeg: Acari
dansk: Mider
Deutsch: Milben
eesti: Lestalised
Ελληνικά: Άκαρι
English: Acari
español: Acari
Esperanto: Akaro
euskara: Akaro
français: Acari
galego: Ácaros
한국어: 진드기아강
hrvatski: Acarina
Ido: Akaro
বিষ্ণুপ্রিয়া মণিপুরী: আকারি
Bahasa Indonesia: Tungau
Ирон: Гæбы
íslenska: Mítlar
italiano: Acarina
עברית: אקריות
Basa Jawa: Tungau
ქართული: ტკიპები
қазақша: Кенелер
Кыргызча: Кенелер
кырык мары: Пыйи
Latina: Acari
latviešu: Ērces
Lëtzebuergesch: Milben
Lingua Franca Nova: Acaro
magyar: Atkák
македонски: Крлежи
മലയാളം: അകാരിന
Nederlands: Acarina
日本語: ダニ
norsk: Midder
norsk nynorsk: Midd
occitan: Acari
oʻzbekcha/ўзбекча: Kanalar
Plattdüütsch: Mieten
português: Acarina
română: Acarieni
rumantsch: Chariels
Runa Simi: Khiki
Scots: Acari
slovenčina: Roztoče
slovenščina: Pršice
srpskohrvatski / српскохрватски: Acarina
suomi: Punkit
svenska: Kvalster
ትግርኛ: ሚተ
удмурт: Лемтэй
українська: Кліщі
اردو: علم حلم
vepsän kel’: Kägentäid
Tiếng Việt: Ve bét
粵語: 蜱蟎亞綱
中文: 蜱蟎亞綱