The six-spotted spider mite, Eotetranychus sexmaculatus (Riley) (Trombidiformes: Tetranychidae) in Australia, New Zealand, Japan and USA: a revised morphological and molecular-based concept, synonyms, and related species.

Based on morphological and molecular evidence, Eotetranychus asiaticus Ehara is confirmed as a junior synonym of E. sexmaculatus (Riley). Eotetranychus queenslandicus Manson differs to E.

Structure and molecular evolution of the barcode fragment of cytochrome oxidase I (COI) in (Acari: Mesostigmata: Macrochelidae).

Consisting of approximately 320 species, is the most widely distributed genus in the family Macrochelidae. Though some studies have focused on the description of Macrochelidae using molecular techniques (e.g.

Cryptic diversity within the Poecilochirus carabi mite species complex phoretic on Nicrophorus burying beetles: Phylogeny, biogeography, and host specificity.

Coevolution is often considered a major driver of speciation, but evidence for this claim is not always found because diversity might be cryptic. When morphological divergence is low, molecular data are needed to uncover diversity. This is often the case in mites, which are known for their extensive and often cryptic diversity.

Phoretic mite communities associated with bark beetles in the maritime and stone pine forests of Setúbal, Portugal.

The phoretic mite communities of prominent bark beetle pests associated with pine stands of southern Portugal were sampled to determine whether they vary across bark beetle species and stand type. Bark beetles were sampled for mites from two primary (aggressive) bark beetle species (Ips sexdentatus and Orthotomicus erosus) and the most common secondary species (Hylurgus ligniperda) in maritime pine (Pinus pinaster) and stone pine (Pinus pinea) in the Setúbal province of Portugal. Twelve mite species, spanning diverse ecological roles, are found associated with these bark beetle systems.

Acari of Canada.

Summaries of taxonomic knowledge are provided for all acarine groups in Canada, accompanied by references to relevant publications, changes in classification at the family level since 1979, and notes on biology relevant to estimating their diversity. Nearly 3000 described species from 269 families are recorded in the country, representing a 56% increase from the 1917 species reported by Lindquist et al. (1979).

New species of parasitic nasal mites infesting birds in Manitoba, Canada (Mesostigmata, Rhinonyssidae).

Mites (Acari, Acariformes, Parasitiformes) are one of the most diverse and abundant groups of arthropods associated with birds. Several families of mites have colonised the respiratory tract of birds, the Rhinonyssidae (Mesostigmata) being the most diverse. There are 66 species of rhinonyssids (59 named, seven undescribed species) reported from Canadian birds.

New species (Acari, Mesostigmata, Macrochelidae) associated with burying beetles (Silphidae, ) in North America.

Burying beetles (Silphidae, ) are hosts to a broad diversity of mites (Acari), including several species of Latreille, 1829 (Mesostigmata, Macrochelidae). The macrochelid fauna associated with silphids primarily in North America was surveyed; in total, 1659 macrochelids representing seven species were collected from 112 beetles representing nine host species. Three new species of were discovered during the survey and described as , , and The barcode region of cytochrome oxidase subunit I (COI) was amplified from the three new described species, as well as and , and analysed in a small phylogeny.

A new species (Acari, Oribatida, Scheloribatidae) associated with bark beetles (Curculionidae, Scolytinae) in Canada.

Bark beetles (Scolytinae) are hosts to a broad diversity of mites (Acari), including several genera of Oribatida (Sarcoptiformes). Of these, (Scheloribatidae) species are the most frequently collected oribatid mites associated with bark beetles. A new species was discovered while surveying the acarofauna of bark beetles in Eastern Canada and is described as (Oribatida, Scheloribatidae).

New host records for parasitic mites of the family Syringophilidae from accipitriform birds (Aves: Accipitriformes).

Four accipitriform bird species of the family Accipitridae are reported as new hosts for quill mites (Acari: Cheyletoidea: Syringophilidae): Megasyringophilus aquilus Skoracki, Lontkowski and Stawarczyk, 2010 was collected from Hieraaetus pennatus Gmelin, 1788 in France and Spain, and Buteo jamaicensis Gmelin, 1788 in Canada; Peristerophila accipitridicus Skoracki, Lontkowski and Stawarczyk, 2010 was collected from Circaetus gallicus Gmelin, 1788 in France, and Buteo lagopus Pontoppidan, 1763 in Germany.

Microlichus americanus acariasis in saffron finches (Sicalis flaveola) with dermatitis and feather loss.

Over a 5-year period, 13 saffron finches (Sicalis flaveola) housed in mixed aviaries at the Bronx Zoo (Bronx, New York) were examined with feather loss and dermatitis, primarily affecting the nape, neck, and dorsum. Feather loss, hyperkeratosis, epidermal hyperplasia, and mixed granulocytic and mononuclear inflammation were identified in biopsies from live birds and tissue sections from postmortem specimens. In 10 of 13 cases, sections of arthropod parasites were seen histologically within feather follicles and along the surface of affected skin.

Relative geographic range of sibling species of host damselflies does not reliably predict differential parasitism by water mites.

Background: One of the main challenges in evolutionary parasitology is to determine the factors that explain variation among host species in parasitism. In this study, we addressed whether host phylogeny or ecology was important in determining host species use by water mites. Parasitism (prevalence and intensity) by Arrenurus water mites was examined in relation to geographic distribution of host damselflies from sibling species pairs.

Species boundaries and host range of tortoise mites (Uropodoidea) phoretic on bark beetles (Scolytinae), using morphometric and molecular markers.

Understanding the ecology and evolutionary history of symbionts and their hosts requires accurate taxonomic knowledge, including clear species boundaries and phylogenies. Tortoise mites (Mesostigmata: Uropodoidea) are among the most diverse arthropod associates of bark beetles (Curculionidae: Scolytinae), but their taxonomy and host associations are largely unstudied. We tested the hypotheses that (1) morphologically defined species are supported by molecular data, and that (2) bark beetle uropodoids with a broad host range comprise cryptic species.

Cryptic species of mites (Uropodoidea: Uroobovella spp.) associated with burying beetles (Silphidae: Nicrophorus): the collapse of a host generalist revealed by molecular and morphological analyses.

Uroobovella (Mesostigmata: Uropodoidea: Urodinychidae) species are among the most common mites associated with carrion-feeding Nicrophorus (Silphidae) beetles. Previous taxonomic understanding suggests that a single host generalist, U. nova, disperses and lives with Nicrophorus species worldwide (reported from at least seven host species).

Five new species of Rhinonyssidae (Mesostigmata) and one new species of Dermanyssus (Mesostigmata: Dermanyssidae) from birds of Alberta and Manitoba, Canada.

Three major lineages of mites are parasitic in the nasal passages of birds, i.e., Rhinonyssidae (Mesostigmata), Ereynetidae (Prostigmata), Cytoditidae, and Turbinoptidae (Astigmata).

Host records for Ornithonyssus sylviarum (Mesostigmata: Macronyssidae) from birds of North America (Canada, United States, and Mexico).

The northern fowl mite, Ornithonyssus sylviarum (Canestrini and Fanzago, 1877) (Mesostigmata: Macronyssidae) is a broadly distributed blood-feeding parasite that has been collected from many birds of temperate regions. Previously, the most complete host list was published in 1938, and it included 15 North American (Canada, United States, and Mexico) host species. In the process of a general survey of bird-associated mites in Alberta, Canada, we recovered many O.