Mite
Guides
Acari
Mites and Ticks, mites, ticks
Acari is a subclass of arachnids containing mites and ticks. The group exhibits extraordinary diversity with fossil records dating to the early Devonian period. Recent phylogenetic analyses have challenged the monophyly of Acari, suggesting that the two main lineages—Parasitiformes (ticks and allies) and Acariformes (dust mites, spider mites, chiggers, and allies)—may not share a single common ancestor exclusive of other arachnids. This would render Acari a paraphyletic or polyphyletic grouping rather than a natural taxon. The traditional unifying character, the gnathosoma (a modified mouthpart region), has been shown to be absent or differently constructed in many species across both lineages.
Aceria caryae
Pecan Leafroll Mite
Aceria caryae, commonly known as the Pecan Leafroll Mite, is an eriophyid mite in the family Eriophyidae. These microscopic, worm-like mites are plant parasites that infest pecan (Carya illinoinensis) and related hickory species (Carya spp.). Eriophyid mites are characterized by their elongated, annulated bodies and reduced number of legs (four legs in adults, compared to eight in most mites). The species causes distinctive leaf rolling symptoms on pecan foliage. As with other eriophyid mites, A. caryae has a short development period of approximately 7–10 days, allowing rapid population buildup under favorable conditions.
Aceria cephalanthi
Buttonbush Mite
Aceria cephalanthi, commonly known as the Buttonbush Mite, is an eriophyid mite in the genus Aceria. Eriophyid mites are minute, worm-like arachnids with four legs that are specialized plant parasites. Members of this genus typically infest specific host plants, with this species associated with buttonbush (Cephalanthus). Like other eriophyids, it likely has a short development period and lives in protected areas of the plant.
Aceria dina
Tupelo leaf edge gall mite
Aceria dina is a gall-forming mite in the family Eriophyidae, commonly known as the tupelo leaf edge gall mite. This species induces distinctive gall structures on the leaf edges of its host plant, Nyssa sylvatica (black tupelo or sour gum). Like other eriophyid mites, it has a worm-like, elongated body with four legs and measures approximately 0.2 mm in length. The mite is an obligate plant parasite with a highly specialized relationship to its host.
Aceria nyssae
Black Tupelo Gall Mite
Aceria nyssae is an eriophyid gall mite that induces distinctive leaf curl galls on Nyssa sylvatica (black tupelo, sour gum). The mite's feeding activity causes leaf margins to curl inward, forming hollow pockets that shelter the mites and their eggs. This species exemplifies the highly specialized host relationships typical of Eriophyoidea, where individual species are often restricted to a single plant host genus. The galls are most evident on young leaves at branch tips during the growing season. Like other eriophyid mites, A. nyssae is extremely small and difficult to observe directly, with populations typically assessed through gall symptoms rather than mite counts.
Aceria triplacis
Aceria triplacis is a species of eriophyid mite in the genus Aceria, family Eriophyidae. Like other members of the superfamily Eriophyoidea, it is a minute, worm-like, four-legged mite. Eriophyid mites represent one of the largest lineages of plant-parasitic arthropods, with conservative estimates of 100,000 living species. Most species in this group are highly specialized parasites of vascular plants, typically associated with specific host species or genera. The specific host associations and biology of A. triplacis have not been documented in published literature.
Aceria vaga
Aceria vaga is a species of eriophyid mite in the family Eriophyidae. Eriophyid mites are minute, worm-like arachnids with four legs that are specialized plant parasites. Many species in this group cause distinctive growth abnormalities on their host plants, including galls, witches' brooms, and leaf distortions. Aceria vaga is among the numerous eriophyid species that remain poorly studied despite the group's significant agricultural and ecological importance.
Aculops euphorbicolus
Aculops euphorbicolus is a species of eriophyid mite in the genus Aculops. Like other members of this genus, it is likely a plant-feeding specialist, though specific host associations and pest status have not been documented in the provided sources. The genus Aculops contains several economically significant pest species, including the tomato russet mite (Aculops lycopersici) and the hemp russet mite (Aculops cannabicola), but A. euphorbicolus itself has received limited research attention.
Adoristes
Adoristes is a genus of oribatid mites in the family Liacaridae, established by Hull in 1916. The genus contains species associated with decomposing coniferous litter in northern temperate forests. The best-studied species, Adoristes ovatus, exhibits pronounced sexual size dimorphism and develops through a characteristic morphological ontogeny with distinct juvenile stages adapted for xylophagy.
Bdella
Bdella is a genus of predatory mites in the family Bdellidae. Species in this genus are active predators of small arthropods and function as biological control agents of pest species such as spider mites and springtails. The genus has a wide geographic distribution, with records from Europe, Northern America, and China. Life cycle stages include larva, protonymph, deutonymph, tritonymph, and adult.
Boletoglyphus ornatus
Boletoglyphus ornatus is a species of mite in the family Acaridae, first described by Fain and Ide in 1976. It belongs to the order Sarcoptiformes, a group that includes many stored product and fungal-feeding mites. The genus Boletoglyphus is associated with fungi, particularly mushrooms (boletes), as indicated by its name. Very little published information exists about the specific biology or ecology of this particular species.
Brachypylina
Brachypylina is a diverse infraorder of oribatid mites (beetle mites) comprising the majority of oribatid species. These mites are characterized by heavily armored, beetle-like bodies with a distinct separation between the notogastral shield and other body regions. They occupy a wide range of terrestrial habitats and play significant roles in decomposition and nutrient cycling.
Callidosoma
Callidosoma is a genus of mites in the family Erythraeidae, subfamily Callidosomatinae. Members are classified within the superfamily Erythraeoidea, a group of predatory mites commonly known as velvet mites or rain mites. The genus was established by Womersley in 1936 and is distributed across multiple continents. Erythraeid mites are generally characterized by their soft, often brightly colored bodies and active predatory habits.
Chaetodactylus krombeini
Krombein's hairy-footed pollen mite
Chaetodactylus krombeini is a cleptoparasitic mite in the family Chaetodactylidae that infests nests of solitary megachilid bees, primarily Osmia lignaria (blue orchard bee) and Osmia cornifrons (hornfaced bee). Described by Baker in 1962, this 0.5 mm mite consumes pollen and nectar provisions intended for developing bee larvae, causing mortality through starvation and direct egg damage. The mite disperses between nests primarily by hitchhiking on adult bees during emergence, though walking dispersal through nest entrances and parasitic wasp holes has been documented. Females are larger than males. Despite the common name "pollen mite," the species consumes more nectar than pollen.
Chelicerata
Chelicerates
Chelicerata is a major subphylum of arthropods characterized by the presence of chelicerae—pincer-like or fang-like appendages that are the first pair of structures before the mouth. The group includes horseshoe crabs, sea spiders, and arachnids (spiders, scorpions, mites, ticks, harvestmen, and allies). Chelicerates diverged from other arthropods by the mid-Cambrian period, approximately 508 million years ago. With over 77,000 described living species and estimates suggesting hundreds of thousands more undescribed species, chelicerates represent one of the most diverse animal groups after insects. Most living species are terrestrial air-breathers, though marine lineages persist.
Clypeosoma
Clypeosoma is a genus of mites in the family Smarididae, order Trombidiformes. Smarididae are predatory mites commonly known as velvet mites due to their dense setae. The genus is poorly documented with minimal published research and only one observation recorded on iNaturalist. Its members are likely active predators in soil and leaf litter habitats.
Cosmochthonius
Cosmochthonius is a genus of oribatid mites (Oribatida: Cosmochthoniidae) established by Berlese in 1910. The genus comprises at least eleven species distributed across the Mediterranean basin and parts of the former Soviet Union. Species exhibit a split distribution pattern, with five species occurring in both western and eastern Mediterranean regions while six species are endemic to the eastern Mediterranean.
Demodex canis
dog follicle mite
Demodex canis is a microscopic follicular mite that inhabits the skin of domestic dogs as a commensal organism, living primarily in hair follicles and sebaceous glands of the facial region. Under normal conditions, it occurs in small numbers and feeds on cellular debris and sebum without causing symptoms. However, when host immune function is compromised or mite populations proliferate excessively, the mite becomes pathogenic, causing demodicosis—a non-contagious inflammatory skin disease characterized by alopecia, erythema, and secondary infections. The mite exhibits increased activity during evening hours and has been observed to regulate host cholinergic immunosuppressive pathways, potentially facilitating its own proliferation. Three Demodex species (D. canis, D. injai, and D. cornei) can cause canine demodicosis, with D. canis being the most common.
Dinychus
Dinychus is a genus of mites in the family Dinychidae, order Mesostigmata. The genus was established by Kramer in 1886. Species have been recorded from northern regions including Canada, Alaska, and Scandinavia. A 1989 description of Dinychus ruseki from Canada noted close morphological similarity to D. micropunctatus from Alaska, suggesting possible ecospecies relationships.
Epidermoptidae
Epidermoptidae is a family of acariform mites in the order Sarcoptiformes. Members are permanent ectoparasites of birds and mammals, inhabiting skin surfaces and subcutaneous tissues. Several species are nostril specialists. Some genera have evolved phoretic associations with louse flies (Hippoboscidae), and certain species hyperparasitise these carriers, using them for oviposition and feeding. The family shows broad geographic distribution with records from Europe, North America, Australia, and the Galápagos Islands.
Ereynetes
Ereynetes is a genus of mites in the family Ereynetidae, order Trombidiformes. These prostigmatic mites are part of the diverse soil-dwelling microarthropod fauna. The genus was established by Berlese in 1883. Records indicate presence in Norway and Sweden, though detailed ecological studies remain limited.
Ereynetinae
Ereynetinae is a subfamily of mites within the family Ereynetidae, order Trombidiformes. These are small arachnids belonging to the diverse group of prostigmatic mites. The subfamily is distinguished by particular morphological features of the gnathosoma and idiosoma. Relatively few observations exist in public databases, suggesting either cryptic habits or limited survey effort.
Eriophyes leiosoma
Lime Felt Gall Mite
Eriophyes leiosoma is an eriophyid mite species in the family Eriophyidae. The genus Eriophyes contains species associated with plant galls and deformities, including economically significant pests of fruit crops. Some Eriophyes species, such as E. dimocarpi, are known to cause witches' broom disease in longan (Dimocarpus longan) through toxic saliva that induces curled, malformed shoot growth. E. leiosoma itself has been recorded in Scandinavia (Denmark, Norway, Sweden).
Eriophyes lepidosparti
Scalebroom Bud Mite
Eriophyes lepidosparti is an eriophyid mite commonly known as the Scalebroom Bud Mite. As a member of the family Eriophyidae, it is a microscopic, worm-like mite that inhabits plant tissues. Eriophyid mites are known for inducing various plant deformities including galls, erinea, and bud proliferation through their feeding activities. The specific host associations and geographic distribution of this species require further documentation beyond the available records.
Eurytetranychus buxi
Boxwood Mite
Eurytetranychus buxi, commonly known as the boxwood mite, is a spider mite in the family Tetranychidae that specializes on boxwood (Buxus species). It is a significant pest of cultivated boxwood in North America and Europe. Climate change may allow this mite to complete additional generations in warmer conditions, potentially increasing damage in regions where it was previously unproblematic.
Eutrombidium
Eutrombidium is a genus of parasitic mites in the family Microtrombidiidae. Larval stages are ectoparasites primarily of grasshoppers and related orthopterans, with some records from beetles and crickets. The genus has been documented across Australia, Asia (Laos, Indonesia, Sri Lanka, Iran, Pakistan), and Europe. Attachment sites on hosts include leg insertions and the prosternum.
Exochocepheus
Exochocepheus is a genus of oribatid mites in the family Scutoverticidae, established by Woolley & Higgins in 1968. The genus comprises seven described species distributed across the Northern Hemisphere, with records from North America, Europe, and northern Asia. Oribatid mites in this group are primarily soil-dwelling decomposers.
Eylais
Eylais is a genus of water mites in the family Eylaidae. The genus has cosmopolitan distribution. Larvae are ectoparasites of diving beetles (family Dytiscidae), attaching primarily to the ventral surface of the hindwings beneath the elytra.
Glycyphagus
Grocer's Itch Mites
Glycyphagus is a genus of astigmatid mites in the family Glycyphagidae, commonly known as grocer's itch mites. Species in this genus inhabit diverse environments including animal nests, stored products, house dust, and hay. They feed on organic debris and can disperse via phoresy on insects or air currents. Some species are significant pests of stored grain and household materials.
Glyphanoetus
Glyphanoetus is a genus of mites in the family Histiostomatidae, established by Oudemans in 1929. These mites belong to the order Sarcoptiformes and the suborder Astigmata, a group characterized by the absence of respiratory tracheae in adults. The genus is part of the Histiostomatoidea superfamily, which contains mites often associated with decomposing organic matter and invertebrate hosts. Specific biological details about Glyphanoetus remain poorly documented in available literature.
Gozmanyina
Gozmanyina is a genus of oribatid mites in the family Cosmochthoniidae, established by Balogh & Mahunka in 1983. The genus contains at least three described species: G. golosovae, G. majestus, and G. pehuen. These mites belong to the diverse group of soil-dwelling microarthropods commonly known as moss mites or beetle mites.
Halacaridae
halacarid mites, marine mites
Halacaridae is a family of meiobenthic mites comprising over 1,100 described species in 64 genera, representing the largest marine radiation of arachnids. Members occupy marine, brackish, and freshwater habitats worldwide, from intertidal zones to deep-sea hydrothermal vents. The family exhibits diverse feeding strategies including predation, algivory, scavenging, and parasitism.
Hydrodromidae
Hydrodromidae is a family of mites in the order Trombidiformes, classified within the superfamily Hydryphantoidea. The family contains at least one recognized genus, Hydrodroma, including the described species H. despiciens. These mites are part of the diverse prostigmatan assemblage, a large group of often predatory or parasitic arachnids.
Joshuella
Joshuella is a genus of oribatid mites in the family Gymnodamaeidae, first described by Wallwork in 1972. These mites belong to the diverse group of soil-dwelling microarthropods commonly known as moss mites or beetle mites. The genus is part of the superfamily Gymnodamaeoidea, a group characterized by certain morphological reductions in the adult stage. Records of this genus are sparse, with limited observational data available.
Kennethiella trisetosa
A mite species in the family Winterschmidtiidae, Kennethiella trisetosa exhibits male dimorphism and maintains a symbiotic relationship with the potter wasp Ancistrocerus antilope. The species inhabits the nests of its host wasp. Research has focused on its life history and the developmental and behavioral consequences of its two distinct male morphs.
Leptus
Leptus is a genus of large mites in the family Erythraeidae, first described by Pierre André Latreille in 1796. The genus comprises approximately 202 species and is distinguished from the related genus Balaustium by the forward placement of eyes on the body. Leptus species are primarily known as ectoparasites, with larvae feeding on various arthropod hosts including bees, harvestmen, and other insects. The genus has been documented across multiple continents including South America, North America, Africa, and Asia.
Limnochares americana
Red Freshwater Mite
Limnochares americana is a species of freshwater mite in the family Limnocharidae, first described by Lundblad in 1941. It belongs to the order Trombidiformes, a group that includes many aquatic and terrestrial mites. As a member of the infraorder Hydrachnidia (water mites), this species is adapted to life in freshwater habitats. The common name "Red Freshwater Mite" reflects its aquatic ecology and likely coloration.
Linopodes
Linopodes is a cosmopolitan genus of mites in the family Cocceupodidae. These are large mites characterized by oval bodies and extremely elongated first legs. They inhabit diverse terrestrial environments including leaf litter and bark, though their solitary habits and low densities make them infrequently observed despite being common.
Lucoppia
Lucoppia is a genus of oribatid mites in the family Oribatulidae, established by Berlese in 1908. These mites belong to the diverse group of soil-dwelling microarthropods commonly known as moss mites or beetle mites. As oribatids, they are part of the decomposer community in terrestrial ecosystems. The genus is poorly documented in scientific literature, with limited species-level descriptions and ecological studies available.
Macrocheles
Macrocheles is a genus of mites in the family Macrochelidae, containing over 80 described species. Members of this genus are primarily known for their phoretic associations with insects, particularly flies and beetles, though some species exhibit facultative or obligate parasitism. Research on Macrocheles muscaedomesticae has provided important insights into the evolutionary origins of parasitism from free-living ancestors. Species in this genus occupy diverse habitats including carrion, dung, decaying plant matter, and necrotic cacti, often following their insect hosts to these ephemeral resources.
Megisthanus floridanus
Megisthanus floridanus is a mite species in the family Megisthanidae, order Mesostigmata. It is known from limited records, with 22 observations documented on iNaturalist. The species has been subject to taxonomic redescription, though detailed biological information remains sparse in accessible literature.
Mochloribatula texana
Mochloribatula texana is a species of oribatid mite in the family Mochlozetidae. First described by Ewing in 1909, this species belongs to a group of soil-dwelling mites commonly known as beetle mites or box mites. Oribatid mites play important roles in decomposition and nutrient cycling in terrestrial ecosystems. The specific epithet "texana" suggests a connection to Texas, though the full geographic range remains incompletely documented.
Nanorchestes
Nanorchestes is a genus of mites in the family Nanorchestidae, order Sarcoptiformes. These small arachnids are part of the Endeostigmata, a group of primitive mites. The genus was established by Topsent and Trouessart in 1890. Records indicate presence in northern European regions including the British Isles, Denmark, Norway, and Sweden.
Neolobogynium
Neolobogynium is a genus of mesostigmatid mites in the family Diplogyniidae, established by Hicks in 1957. Members of this genus are small arachnids belonging to the order Mesostigmata, a diverse group of mites that includes many free-living and symbiotic species. Diplogyniidae mites are primarily associated with arthropod hosts, particularly beetles. The genus is distinguished from related genera by specific morphological features of the gnathosoma and leg chaetotaxy.
Neomolgus littoralis
intertidal red velvet mite
Neomolgus littoralis is a species of snout mite in the family Bdellidae, commonly known as the intertidal red velvet mite. It inhabits shoreline environments across North America, Europe, and Japan. The species reaches approximately 2 mm in length and is characterized by its red coloration, ridged abdomen, and elongated snout. It is known to prey on small insects including kelp flies.
Opilioacaroidea
mite harvestmen, opilioacarid mites
Opilioacaroidea is a small superfamily of arachnids comprising the single family Opilioacaridae, with approximately 25 described species. These organisms represent a phylogenetically significant group, often considered the most primitive living mites due to their retention of ancestral chelicerate characteristics. They occupy an intermediate position between mites and harvestmen (Opiliones), exhibiting morphological features of both groups. Their restricted distribution and specialized habitat requirements make them among the least studied arachnids.
Oreoneta
A genus of dwarf spiders (family Linyphiidae) established in 1894, comprising approximately 30 species distributed across cold-temperate and Arctic regions of the Northern Hemisphere. Most species inhabit high-latitude or high-altitude environments. The genus was revised extensively by Saaristo & Marusik in 2004, resulting in numerous new species descriptions.
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Oribotritia is a genus of oribatid mites (also known as beetle mites or moss mites) in the family Oribotritiidae. The genus was established by Jacot in 1924 and contains at least three described species. Oribatid mites in this group are soil-dwelling microarthropods that contribute to decomposition processes.
Otodectes
ear mite
Otodectes is a genus of parasitic mites in the family Psoroptidae containing a single species, Otodectes cynotis, commonly known as the ear mite. These ectoparasites infest the external ear canals of domestic and wild carnivores, causing otitis externa. The genus is distributed worldwide and is of significant veterinary importance due to the intense irritation and secondary infections it can cause in host animals.
Otodectes cynotis
Ear Mange Mite, Ear Mite, Common Ear Mite
Otodectes cynotis is a parasitic mite in the family Psoroptidae, the sole species in its genus. It is a non-burrowing ectoparasite that inhabits the external ear canals of mammals, causing otitis externa. The mite completes its entire life cycle on a single host in approximately three weeks. It is distributed worldwide and primarily affects domestic cats, dogs, and ferrets, though it has been recorded on numerous other carnivores and occasionally humans. Infestation causes intense pruritus, head shaking, and ear scratching, and can lead to secondary bacterial infections in severe cases.