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International audience; The present study has been initiated by new species from South America and the deviating classification of sub-groups by several authors. We assume a division of the Parasitiformes into three main groups: 1. Antennophorina Berlese, 1892 s. lat., 2. Margotrichina Karg et Schorlemmer, 2008, 3. Gamasina Leach, 1815. Here, we analyse these groups step by step. Cladograms that are based on autapomorphies and synapomorphies visualize relationships between subgroups. 1. The Antennophorina are divided into the Sejides Berlese and the Trigynaspida Camin et Gorirossi including the Celaenopsoidea Berlese, Cercomegistoidea Trägårdh Fedrizzioidea Trägårdh, Megisthanoidea Berlese and Trigynaspidoidea Camin et Gorirossi. Two new species belong to the Cercomegistoidea and the Fedrizzioidea. A new genus of the Fedrizziidae is erected: Holostethus n. gen. 2. Larval-systematic investigations and comparisons of the chaetotaxy of extremities lead to two novel findings. First, the group of the Microgyniina belongs to the Margotrichina. Second, the Thinozerconina have to be separated from the Uropodina group. Hence, the Margotrichina now comprise the four subgroups Microgyniina, Thinozerconina, Uropodina and Ixodides. 3. The state of art regarding the Gamasina is briefly outlined. We describe two new species of Gamasiphoides - family Gamasiphidae and generate a key for new and known species of the genus.

Eleven species are newly reported for the Finnish fauna of Phytoseiidae. Of these, the following three new species are described: Amblyseius (Pauciseius) valsoensis n. sp., Amblyseius (Amblyseius) tavasticus n. sp. and Proprioseiopsis (Amblyseiulus) savonicus n. sp. Subgroups in the genera Amblyseius, Proprioseiopsis and Typhlodromus are reviewed and keys for the identification of these species are presented.

Die Gattung Neojordensia Evans, 1957 stellt ein Zwischenglied dar zwischen den Familien Phytoseiidae Berlese und Podocinidae Berlese. Bisher waren drei Arten bekannt. Eine neue Art aus Sudamerika wird beschrieben und durch Abbildungen und Differentialmerkmale belegt.

Vier neue Arten der Gattung Pseudoparasitus OUDEMANS werden beschrieben. Drei Arten werden der Untergattung Pseudoparasitus s. str. zugeordnet: P. quadrisetatus n. sp., P. ocularis n. sp. und P. exilis n. sp. Eine Art wird zur Untergattung Gymnolaelaps BERLESE gestellt: P. reniculus n. sp. Die Differentialmerkmale der Arten werden in Bestimmungstabellen der bisher bekannten Arten der Gattung eingegliedert.

Aus Tiermaterial, das in Sudamerika gesammelt wurde, werden 5 neue Milbenarten der Uberfamilie Phytoseioidea KARG, 1965 beschrieben. 2 Arten gehoren der Gattung Lasioseius an, eine Art der Gattung Proprioseiopsis und 2 Arten der Gattung Proctolaelaps. Die Arten werden durch Abbildungen und Differentialdiagnosen belegt. Weiterhin wird die wiedergefundene Art Podocinum jamaicense EVANS et HYATT abgebildet. Die Gattung Proctolaelaps wird in die Untergattungen Proctolaelaps s. str. und Proctofissus n. subgen. geteilt. Es wird ein Bestimmungsschlussel fur die Arten der Untergattung Proctofissus gegeben.

From a grassland-soil and from a forest-soil with deciduous trees in Central Europe two novae species and from Northern Europe one nova subspecies of the genus Typhlodromus Scheuten, 1857 are described and documented by figures. The differential features are integrated into a key for the known species and subspecies of the Typhlodromus pyri-group. The scientific terms for organo-parts of the spermatheca of the females in the Phytoseiidae Berlese are revised.

Material of mites obtained from soil samples, collected in coffee farms on Cuba was investigated. Together with nematodes predatory mites were observed. Two new species of the genus Proctolaelaps Berlese were distinguished. The species are described and documented by figures and differential diagnosis.

Species of the genus SchwiebeaOUDEMANS inhabit microhabitats of woodlands, the rhizosphere and humid habitats near waters. Out of feeding tunnel of clearwing Aegeria tipuliformis at red currant a new species is described: Schwiebea cepa n. sp. A key is given for 30 species of the genus Schwiebea.

Out of nests of termites of Nasutitermes spec. from Cuba two new species of predatory mites of the subgenus Cosmolaelaps Berlese (genus Hypoaspis Can.) are described and documented by figures and differentialdiagnoses.

Material of mites of the family Phytoseiidae BERLESE gathered from different trees and shrubs in Norway is investigated. 21 species are distinguished, including 5 new species belonging to the genera SeiulusBERLESE, AnthoseiusDE LEON, TyphlodromusSCHEUTEN and AmblyseiusBERLESE. The species are described and documented by figures and differential diagnosis.

Several species of the genus Proctolaelaps Berl. infest cultures of different species of Drosophila Fall. When mite infestations increase population of flies crash. A new species of Proctolaelaps was found in a Drosophila culture at the University of Leeds. The new species is described and documented by differential features and figures.

From animal material collected in soil-biological investigations 3 new species of mites of the family Tydeidae are described and documented by figures and differential-diagnosis. They belong to the genera Tydeus Koch and Coccotydaeolus Baker.

Species of the genus Evimirus Karg colonize climatic warm regions. In Central Europe one species occures in soils under cultivation in glasshouses. From Central America a new species is discribed, and for 5 species a key is arranged.

From Central Europe and Central America 3 new species are described and documented by figures and by differentialdiagnoses. The species belong to the subgenera Amblyseius s. str. and Neoseiulus Hughes, 1948. A key is given for the 7 subgenera of the genus Amblyseius Berlese.

Two new predatory mite species of the Parasitinae OUDEMANS out of greenhouse-soils (Acarina, Parasitiformes) Out of greenhouse-soils two new predatory mite species are described and documented by differentialdiagnoses and figures. The species belong to the genera Anadenosternum Athias-Henriot and Neogamasus Tichomirov.

Mites of the genus Hoploseius Berlese have been found associated with fungi and have phoretic associations with some fungal insects. The female and male of Hoploseius bispinosetus n. sp. collected from wood fungi and decomposing wood in north of Iran are described and illustrated. This new species is easily distinguished from the other species in the genus Hoploseius by its enlarged and spine-like I 4 dorsal setae.

Two new species of gamasine mites (Acari: Ascidae), Cheiroseius aldershofae n. sp. and Leioseius sabelisi n. sp., are described and illustrated. Leioseius sabelisi was collected from sandysoil in 't Harde, The Netherlands and C. aldershofae from weeds in an apple orchard in southwest France.

A new species belonging to the genus Typhloromips De Leon, 1965 is described. It was collected from Calluna moorland soil on Jurmo, a remote island in the SW archipelago of Finland. Typhlodromips herbarius (Wainstein, 1960) is considered a senior synonym of T.tenuis (Westerboer, 1963), syn.n. A key is given to related species with a similar spermathecal structure. peerReviewed

A new species is described belonging to the Amblyseius (s. str.) americanus group (Denmark & Muma, 1989). It was collected regularly from trunks of old trees in Finland. A key is given including the known species of the A. americanus group.

Two new species of the genus Androlaelaps, extremitatis and ziegleri, were found on a cockroach of the genus Princisia in Madagascar. These are described and illustrated. A key for the species found on the cockroaches is given. The genus Gromphadorholaelaps Till 1969 is synonymised with Androlaelaps.

In abandoned cocoons of spiders in caves near Vienna a new species of the genus Amblyseius BERLESE, 1904 was detected: Amblyseius caviphilus n. sp. The species is described and documented by figures and by a differentialdiagnose. In verlassenen Spinnenkokons in Hohlen bei Wien wurde eine neue Milbenart der Gattung Amblyseius BERLESE, 1904 gefunden: Amblyseius caviphilus n. sp. Die Art wird beschrieben und durch Abbildungen und durch eine Differentialdiagnose belegt.