Eriophyidae
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Eriophyidae
Eriophyidae is a family of more than 200 genera of mites, which live as plant parasites, commonly causing galls or other damage to the plant tissues and hence known as gall mites. About 3,600 species have been described, but this is probably less than 10% of the actual number existing in this poorly researched family. They are microscopic mites and are yellow to pinkish white to purplish in color. The mites are worm like, and have only two pairs of legs. Their primary method of population spread is by wind. They affect a wide range of plants, and several are major pest species causing substantial economic damage to crops. Some species, however, are used as biological agents to control weeds and invasive plant species. Notable species Notable species in this family include: *''Abacarus hystrix'', the cereal rust mite *'' Abacarus sacchari'', the sugarcane rust mite *'' Acalitus essigi'', the redberry mite, which affects blackberries *''Aceria chondrillae'', the chondrilla gall ...
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Acalitus
''Acalitus'' is a genus of mites in the family Eriophyidae. These cosmopolitan, microscopic arthropods form galls on various plants, and some species such as ''Acalitus essigi'' and ''Acalitus vaccinii'' are pests of agricultural significance associated with berry crops. This genus includes the following species: *''Acalitus acanthus'' Smith-Meyer, 1990 *''Acalitus accolus'' Flechtmann, Amrine & Stasny, 1995 *''Acalitus acnistii'' (Keifer, 1953) *''Acalitus aethiopicus'' Smith-Meyer, 1990 *''Acalitus amicorum'' Flechtmann ''in'' Flechtmann, Kreiter, Etienne & Moraes, 2000 *''Acalitus amydros'' Flechtmann & Etienne, 2001 *''Acalitus ancyrivalis'' Smith-Meyer, 1990 *''Acalitus anthonii'' Keifer, 1972 *''Acalitus australis'' (Lamb, 1952) *''Acalitus avicenniae'' (Lamb, 1952) *''Acalitus batissimus'' Wilson, 1970 *''Acalitus bosquieae'' (Farkas, 1961) *''Acalitus brevitarsus'' (Fockeu, 1890) *''Acalitus calycophthirus'' (Nalepa, 1891) *''Acalitus capparidis'' Flechtmann ''in'' Flechtm ...
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Abacarus Hystrix
''Abacarus hystrix'', the cereal rust mite or grain rust mite, belongs to the family Eriophyidae. They are extremely small with adults measuring up to in length and only have four legs at the front of the body. Viewing by the human eye requires a 10 – 20X lens.Whalen, J. and Cissel, B. 2012. Cereal Rust Mite in Timothy. Available at: The adult mites are usually yellow but also have been seen to be white or orange. The cereal rust mite was first found on ''Elymus repens'' (couch grass), a very common perennial grass species. It has now been found on more than 60 grass species including oats, barley, wheat and ryegrass, found in Europe, North America, South Africa and Australia.Gibson, R. 1974. Studies on the feeding behaviour of the eriophyid mite ''Abacarus hystrix'', a vector of grass viruses. Annals of Applied Biology, 78 (3), pp. 213-217. ccessed: 28 Oct 2013 Mites migrate primarily through wind movement and are usually found on the highest basal sections of the top two l ...
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Alfred Nalepa
Alfred Nalepa (19 December 1856, in Werschetz – 11 December 1929, in Baden bei Wien) was an Austrian zoologist specializing in the field of acarology. He studied natural sciences at the University of Vienna, and from 1886 was associated with the ''Lehrerbildungsanstalt'' in Linz. In 1892 he returned to Vienna, where he was appointed professor of natural history at the ''Elisabethgymnasium''. He described many species in the field of acarology, and was the taxonomic authority of the gall mite family, Eriophyidae. Principal works * ''Beiträge zur Systematik der Phytopten'', 1889 - Contribution to the systematics Biological systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time. Relationships are visualized as evolutionary trees (synonyms: cladograms, phylogenetic tre ... of Phytoptidae. * ''Beiträge zur Kenntniss der Phyllocoptiden'', 1894 - Contribution to the knowledge of '' Phyll ...
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Aceria Guerreronis
''Aceria guerreronis'', the coconut mite, is an eriophyid mite which infests coconut plantations. It is economically devastating, and can destroy up to 60% of coconut production. The immature nuts are infested and injured by mites feeding in the portion covered by the perianth of the immature nut. Description The coconut mite is small, with a length of about and a width of ; this is too small to see with the naked eye. The mite is white and translucent, long and slender, with two pairs of legs. Populations build up rapidly, and the presence of this mite is generally indicated by the damage it does, and confirmed microscopically. Distribution ''Aceria guerreronis'' was first described by Hartford H Keifer in 1965 from Mexico, but it is unclear whether it originated from the Old or New World. The coconut palm originated in the South Pacific region and spread along the coasts of Asia, and later Africa. It was introduced into the Americas by traders in the sixteenth century, but ...
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Aceria Chondrillae
''Aceria chondrillae'' (chondrilla gall mite, skeletonweed gall mite) is a gall forming deuterogynous, eriophyid (mite) often used as a biological control of the noxious weed, ''Chondrilla juncea'' (Rush skeletonweed), a highly competitive herbaceous perennial composite found in Europe, Asia, Australia and North America.Krantz, G.W. and Ehrensing, D.T. (1990). ‘Deuterogyny in the Skeleton Weed Mite, Aceria Chondrillae (G. Can.) (Acari: Eriophyidae)’, International Journal of Acarology, Vol. 16, No 3, pp 129-133. Biological description At maturity, mites are yellowish orange in colour, with females ranging from 0.19-0.26 mm in length with the males slightly smaller at, 0.165-0.180 mm.Powell G.W., Sturko A., Wikeem B.M., Harris P. (1994). ‘Field Guide to the Biological Control of Weeds in British Columbia’, British Columbia Ministry Forest Research Program Land Management, pp. 55-56. Except for genitalia male and female mites are externally similar. Larvae are sma ...
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Aberoptus
''Aberoptus'' is a genus of mite 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 e ...s belonging to the family Eriophyidae. These tiny mites, flattened in shape, live beneath the waxy layer on the underside of the leaves of certain plants. Species Species include: *'' Aberoptus cerostructor'' Flechtmann, 2001 *'' Aberoptus championus'' Huang, 2005 *'' Aberoptus platessoides'' Smith-Meyer, 1989 *'' Aberoptus samoae'' Keifer, 1951 References * Eriophyidae Trombidiformes genera {{Trombidiformes-stub ...
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Cecidophyopsis Ribis
''Cecidophyopsis ribis'' is an eriophyid mite which is best known for being a plant parasite, a pest of ''Ribes'' species, the genus that includes gooseberries and blackcurrants. It is commonly known as the blackcurrant gall mite or big bud mite. It feeds on the plants' buds, forming galls, and transmits a virus which causes blackcurrant reversion disease. The mite is a serious pest of blackcurrant crops in Europe, but rarely on other continents. Biology Buds affected by ''Cecidophyopsis ribis'' become swollen and globular and fail to develop normally. They are first noticeable in the autumn when they are unpointed and twice as large as normal buds. Inside the bud, between the closely folded leaves, are thousands of small, spherical eggs which later hatch into sausage-shaped mites with short legs near their anterior end. The mites suck sap from the buds and while they are doing so, can transmit the virus that causes blackcurrant reversion disease. The mites are long. When mature ...
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Aceria Malherbae
''Aceria malherbae'' is a species of gall mite known as the bindweed gall mite. It is used as an agent of biological pest control on invasive species of bindweed, particularly field bindweed (''Convolvulus arvensis''). This mite is native to central and southern Europe and northern Africa. It was imported from Greece and released in the US state of Texas in 1989. It is now established in Texas and surrounding states, where it has been known to reduce the density of invasive field bindweed. The adult mite is nearly microscopic and looks like a minute yellow maggot with two pairs of legs. The nymph A nymph ( grc, νύμφη, nýmphē, el, script=Latn, nímfi, label= Modern Greek; , ) in ancient Greek folklore is a minor female nature deity. Different from Greek goddesses, nymphs are generally regarded as personifications of nature, are ... is similar in appearance to the adult. The adult and the nymph both damage the plant, feeding on the leaves during the warmer seasons ...
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Abacarus
''Abacarus'' is a genus of acari, including the following species: * '' Abacarus acutatus'' Sukhareva, 1985 * '' Abacarus doctus'' Navia ''et al.'', 2011Navia, D., Flechtmann, C.H.W., Lindquist, E.E., & Aguilar, H. (2011). "A new species of ''Abacarus'' (Acari: Prostigmata: Eriophyidae) damaging sugarcane, ''Sacharum officinarum'' L., from Costa Rica—the first eriophyid mite described with a tibial seta on leg II." ''Zootaxa'' 3025: 51-58. * ''Abacarus hystrix ''Abacarus hystrix'', the cereal rust mite or grain rust mite, belongs to the family Eriophyidae. They are extremely small with adults measuring up to in length and only have four legs at the front of the body. Viewing by the human eye require ...'' (Nalepa, 1896) * '' Abacarus lolii'' Skoracka, 2009 * '' Abacarus sacchari'' Channabasavanna, 1966 References Eriophyidae Trombidiformes genera {{Trombidiformes-stub ...
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Aceria Fraxini Leaf Galls
''Aceria'' is a genus of mites belonging to the family Eriophyidae, the gall mites. These tiny animals are parasites of plants. Several species can cause blistering and galls, including erineum galls. A few are economically significant pests, while others are useful as agents of biological pest control of invasive plants such as rush skeletonweed (''Chondrilla juncea''), creeping thistle (''Cirsium arvense''), and field bindweed (''Convolvulus arvensis''). There are over 900 species in the genus.) Selected species * ''Aceria aloinis'' – aloe mite * ''Aceria anthocoptes'' – rust mite, russet mite * ''Aceria banatica'' Vidovic, B. (2011)A new ''Aceria'' species (Acari: Eriophyoidea) on ''Echinops ritro'' L. subsp. ''ruthenicus'' (M.Bieb.) Nyman (Asteraceae) from Serbia and a supplement to the original description of ''Aceria brevicincta'' (Nalepa 1898).''Zootaxa'' 2796, 56–66. * ''Aceria bipedis'' * ''Aceria calaceris'' – western maple erineum m ...
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Mite
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 Predation, predators or Parasitism, 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 disti ...
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Acaphylla
''Acaphylla'' is a genus of mites belonging to the family Eriophyidae Eriophyidae is a family of more than 200 genera of mites, which live as plant parasites, commonly causing galls or other damage to the plant tissues and hence known as gall mites. About 3,600 species have been described, but this is probably l .... The species of this genus are found in Northern America. Species: *'' Acaphylla acromia'' *'' Acaphylla steinwedeni'' *'' Acaphylla theae'' *'' Acaphylla theavagrans'' References {{Taxonbar, from=Q10398724 Eriophyidae ...
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