Alex Fain

Revision of the subgenus Marquesania (Acari : Atopomelidae : Listrophoroides)

The subgenus Marquesania Womersley (Acari : Atopomelidae : Listrophoroides) is revised. The species of this subgenus are permanent parasites living in the fur of rats (Rodentia : Murinae) in the Oriental region, Australia and New Guinea. Most of the type material has been examined. Two new species, Listrophoroides melomys, sp. nov. from Melomys moncktoni (Thomas) and L. mordax, sp. nov. from Rattus mordax (Thomas) are described from New Guinea. A new diagnosis of the subgenus Marquesania, detailed descriptions, and a key for all species is provided. The phylogenetic reconstruction of the subgenus Marquesania was effected by the method of parsimonius cladistics. The monophyly of the subgenus is strongly supported by this analysis, and most species from the Oriental region fall at the base of the cladogram. The distribution of Marquesania species on their hosts is discussed. It is suggested that these mites originated in the Oriental region and then migrated to Australia and New Guinea. The distribution of Marquesania species in the Australian and New Guinean regions is noticeably complicated, reflecting the complex settling history of their hosts.

A new species of Macronyssus Kolenati, 1858 (Acari: Macronyssidae) from Leisler's bat, Nyctalus leisleri Kuhl, 1818 (mammalia: chiroptera) in Germany

Abstract The bat mite Macronyssus leislerianus n. sp. (Acari: Macronyssidae) is described from Nyctalus leisleri Kuhl, 1858 (Chiroptera) from Thuringia, Germany. Illustrations are given.

New observations on species of the genus Ophionyssus Mégnin (Acari: Macronyssidae) parasitic on lizards of the genus Gallotia Boulenger (Reptilia: Lacertidae) from the Canary Islands, Spain with description of a new species

Abstract The geographical distribution of species of the genus Ophionyssus Mégnin (Acari) parasitic on lacertid lizards of the genus Gallotia Boulenger, endemic to the Canary Islands, is studied. A new species Ophionyssus dolatelacensis n. sp. (Acari: Macronyssidae) is described from Gallotia atlantica from the island of Lanzarote, Canary Islands, Spain

A new species of the genus Epimyodex Fain and Orts, 1969 (Acari: Cloacaridae: Epimyodicinae) parasitizing Sorex trowbridgii (Soricidae) from the U.S.A.

Abstract A new species Epimyodex soricis n. sp. (Acari: Cloacaridae: Epimyodicinae) is described from Sorex trowbridgii (Soricidae) in the USA.

A new species of the genus Myocoptes Claparede, 1869 (Acari: Myocoptidae) parasitizing Pitymys pinetorum (Rodentia: Cricetidae) from the USA

Abstract Myocoptes pitymys n. sp. (Acari: Myocoptidae) collected from Microtus pinetorum (Cricetidae) in the USA is described.

Observations on the Pyroglyphidae (Acari: Astigmata) with description of a new genus and species from Cygnus melanocoryphus (Molina) (Aves: Anatidae)

Abstract Cygnocoptes prasadi n. g., n. sp. (Acari: Astigmata: Pyroglyphidae) is described from a SouthAmerican swan, Cygnus melanocoryphus (Aves: Anatidae).

A new species of the genus Metacheyletia Fain, 1972 (Acari: Cheyletidae) parasitizing Serinus mozambicus (Passeriformes: Fringillidae) in central Africa

Abstract A new mite species, Metacheyletia degenerata n. sp. (Acari: Cheyletidae), is described from the quills of Serinus mozambicus (Fringillidae) from Central Africa.

Observations on some astigmatid mites (Acari) parasitic on rodents (Rodentia) from Peru, with description of three new species

Abstract Three new species of astigmatid mites parasitic on rodents from Peru are described, i.e. Sclerolistrophorus peruviensis n. sp. and S. longipes n. sp. (Listrophoridae) from Oryzomys spp. (Sigmodontidae) and Echimytricalges whitakeri n. sp. (Lobalgidae) from Echimyidae. Two other species of the genus Echimytricalges, i.e. E. surinamensis Fain and E. mesomys Fain, are recorded for the first time from Peru. The male of Chirodiscoides proechimys (Atopomelidae) is described for the first time, also from Peru. Phoretic deutonymphs of Paralabidophorus peruviensis Fain (Glycyphagidae) are recorded from two new hosts, both from Peru.

A new species of Aplodontopus (Acari: Astigmata: Chortoglyphidae) from the yellow-bellied marmot, Marmota flaviventris (Rodentia: Sciuridae) in Eastern Washington, USA, with observations on its pathology

Abstract The deutonymph of a new species of the chortoglyphid genus Aplodontopus is described from a population of Marmota flaviventris occupying a city park in eastern Washington state, USA. Many of the mite-infested individuals displayed hair loss ranging from 20–100%, along with a variety of tissue and histological abnormalities. A key to the deutonymphs of described species of Aplodontopus is presented.

A new genus and species of cheyletid mite (Acari: Cheyletidae) from a cave in Western Australia

Abstract A new genus and species of a predatory cheyletid mite, Granulocheyletus corpuzrarosae n. gen., n. sp. (Acari: Cheyletidae) is described from a cave in Western Australia.