Four new species of the mite genus Bakerdania (Heterostigmata, Pygmephoridae) from Russia

Four new mite species (Bakerdania palustris, B. taymyrica, B. mycophila, and B. littoralis) from different regions of Russia are described. Bakerdania palustris sp. n. is most similar to B. janetscheki Mahunka, 1970, differing in the presence of adjoining bases of setae ps ₂ and ps ₃ (in B. janetscheki, ps ₃ is separated from ps ₂) and also by shorter smooth setae 2b (in B. janetscheki, setae 2b are serrate and distinctly longer). Bakerdania taymyrica sp. n. is most similar to B. heisseli Mahunka, 1970, differing in the presence of the brush-like setae 1a (that are trichoid and serrate in B. heisseli); shorter setae tc′ on the tibiotarsus I, that are almost half as long as setae pl′ (in B. heisseli, tc′ is much longer, nearly as long as pl′). Bakerdania mycophila sp. n. is most similar to B. racki (Mahunka, 1967), differing in the presence of significantly longer ventral setae and the separate solenidion ω₁ (in B. racki, the latter is fused with the tibiotarsus). Bakerdania littoralis sp. n. is most similar to B. racki, differing from the latter in the shape of setae 1a, 2a, 3a, 3b, 4a that are basally thickened; in the shape of setae ps ₁ (trichoid in B. racki); and in the presence of the non-furcated setae 1b (in B. racki, these setae are bifurcate).     

A new species of the mite genus Dolichocybe (Acari, Heterostigmata, Dolichocybidae) from the Crimea

A new species from the Crimea, Dolichocybe subcorticalis, is described and illustrated. It was found under the bark of Salix sp. in galleries of the beetle Trypophloeus rybinskii Reitter. A key to the all known species of the genus Dolichocybe is given.     

A new species of the genus <Emphasis Type=Italic>Siteroptes</Emphasis> (Acari,Heterostigmata, Pygmephoridae) from European Russia

A new species, Siteroptes longisetissimus Khaustov et Ermilov sp. n., is described from European Russia (Nizhnii Novgorod Province). The new species differs from all the congeners in the presence of very small oval stigmata and in the absence of setae v on femora III and IV. A key to families of the superfamily Pygmephoroidea is provided.     

A new species of mites of the genus <Emphasis Type="Italic">Bakerdania</Emphasis> (Acari,Heterostigmata, Pygmephoridae) from European Russia

The new species, Bakerdania canabae found in barley grain in Nizhnii Novgorod brewery, is described. The new species is similar to B. bavarica (Krczal, 1959), but differs in the absence of apodemae 5 and pinnaculum at the base of seta tc″ on tibiotarsus 1.     

A new genus and species in the mite family Eupodidae (Acari,Eupodoidea) from Crimea

A new genus Pseudoeupodes Khaustov, gen. n. and new species Pseudoeupodes porosus sp. n. are described from moss in Crimea. The taxonomy of the Eupodidae and some other families and genera of Eupodoidea is reviewed. The genus Turanopenthalodes Barilo, 1988 is transferred from Penthalodidae to Penthaleidae. The family Cocceupodidae Jesionowska, 2010 and the genus Filieupodes Jesionowska, 2010 are considered as junior synonyms of Eupodidae Koch, 1842 and Cocceupodes Thor, 1934, respectively. A key to genera of the family Eupodidae is provided.     

A new oribatid mite of the genus Rhynchoribates (Acari,Rhynchoribatidae) from equador

A new oribatid mite species, Rhynchoribates parafabulosus sp. n., is described from Ecuador. This species is similar to R. fabulosus Beck 1961 (from Peru) in the rostrum structure and the length of prodorsal and notogastral setae. However, it clearly differs from the above species by the absence of thorns on the leg femora, location of adanal lyrifissures, and the structure of notogastral setae.     

A new freshwater halacarid mite, genus Peregrinacarus (Halacaridae, Acari) from the Falklands

Peregrinacarus falklandensis n. sp., a halacarid mite from an East Falkland creek, is described and illustrated. This is the second Peregrinacarus species to date. The other species, P. reticulatus Bartsch, is recorded from Marion Island, Indian Ocean. The two species differ in chaetotaxy of the legs. The presence of halacarids in freshwater of southern polar and adjacent regions is discussed.     

A new oribatid mite species of the genus Sphaerozetes (Acari,Ceratozetidae) from Vietnam

A new oribatid mite species, Sphaerozetes bugiamapensis sp. n., is described from the Bu Gia Map National Park (Vietnam). The genus Sphaerozetes is recorded from Vietnam for the first time.     

A new genus and species of mite (Acari: Acaridae) from Mexico

Comerinia chuetolamina gen. & sp. nov. was collected from a cargo of dried Daphnia imported to Britain from Mexico. Females can be distinguished from all others described in the family Acaridae in that setae 14, 15 and d5 are flattened dorsoventrally over most of the basal half. This region appears blade-like, bearing numerous strong pectinations along the ventral side. Males may be recognized by a series of characters, some of which reflect a close relationship with Forcellinia Ouds., 1924 and others with Tyrophagus Ouds., 1924. The position of the new genus in a commonly used key to adults of the family Acaridae is indicated.     

A new oribatid mite species of the genus Protoribates (Acari,Oribatida, Haplozetidae) from Ethiopia

A new oribatid mite species, Protoribates aethiopicus sp. n., from Ethiopia is described. This species is morphologically similar to Protoribates dentatus (Berlese, 1883), but differs from it in the longer lamellae and notogastral setae, shorter adanal setae ad ₁ and smaller notogastral porous areas, as well as in the presence of two claws on all legs.     

Five new species and a new subgenus of the mite genus <Emphasis Type="Italic">Premicrodispus</Emphasis> (Acari,Heterostigmata, Microdispidae) from Turkmenistan

A new monotypic subgenus, Premicrodispulus subgen. n., with the type species Premicrodispus reductus sp. n., and four new species of the nominative subgenus of the mite genus Premicrodispus, P. (Premicrodispus) paradoxus sp. n., P. (P.) heterocaudatus sp. n., P. (P.) obtusisetosus sp. n., and P. (P.) incisus sp. n., collected in soils of Turkmenistan are described. The subgenus Premicrodispulus subgen. n. differs from the nominative subgenus in the presence of 3 setae on genu I (seta l″ absent) and 1 seta on genu II (setae d and l″ absent). Premicrodispus (Premicrodispus) paradoxus sp. n. differs from all the species of the genus in the presence of solenidion on tarsus III. P. (P.) heterocaudatus sp. n. is most similar to P. longisetosus (Mahunka, 1970), but differs in the setae ps3 distinctly longer than ps ₁ (in P. longisetosus, ps ₃ and ps ₁ are similar in length). P. (P.) obtusisetosus sp. n. is most similar to P. montanus Khaustov, 2006, but differs in obtuse setae c ₁, e, and f (in P. montanus, these setae are pointed); P. (P.) incisus sp. n. is most closely related to P. longisetosus (Mahunka, 1970), but differs in the presence of distinct excavations on the posterior margin of tergites C and D (in P. longisetosus, excavations are absent).     

The oribatid mite genus Benoibates (Acari,Oribatida, Oripodidae)

Two species of oribatid mites of the genus Benoibates (Oribatida, Oripodidae), i.e., Benoibates bolivianus Balogh & Mahunka, 1969(a) and Benoibates minimus Mahunka, 1985, are recorded for the first time in Costa Rica. Both are redescribed in details, using drawings, images and SEM micrographs, on the basis of Costa Rican specimens. An identification key to the known species of Benoibates is given.     

A new mite superfamily (Acari: Cryptostigmata)

The new superfamily Eutegaeoidea (Acari: Cryptostigmata) is defined and subdivided into three families, viz. Eutegaeidae, Compactozetidae nov., Pterozetidae nov. The Eutegaeidae is considered to possess six genera ( Eutegaeus, Neoeutegaeus, Neseutegaeus, Pareutegaeus, Birotegaeus nov., Atalotegaeus nov.), the Pterozetidae three genera ( Pterozetes, Porrhotegaeus, Dudichella ), and the Compactozetidae four genera ( Compactozetes, Bornebuschia, Hamotegeus, Sadocepheus ). Keys are provided to all taxa down to species and Pareutegaeus similis (Trägardh, 1931) is redescribed from the lectotype.     

Two new species of the marine water mite family Pontarachnidae from Queensland,Australia (Acari: Hydrachnidia)

Two new species of the water mite family Pontarachnidae are described from Queensland, Australia: Pontarachna curvipalpis and Litarachna haleioides. Pontarachna curvipalpis can be distinguished from other members of the genus by its stocky leg segments, long apodemes of the fourth coxae, strongly bowed pre- and postgenital sclerite and wheel-like acetabula without radiating spokes. Litarachna haleoides is characterized by strongly bowed but not touching genital sclerites, relatively short apodemes of the fourth coxae, a slender palp and P2 with a ventral projection. A short discussion is provided on the occurrence of water mites on the Great Barrier Reef.     

A new genus and species of larval mite (Acari: Prostigmata: Microtrombidiidae) parasitising Orthoptera (Tettigoniidae) from the Sierra Nevada, Spain

Nevada capileirarum n. g., n. sp. (Acari: Microtrombidiidae: Microtrombidiinae) is described from ectoparasitic larvae parasitising two endemic species of Orthoptera (Tettigoniidae), Baetica ustulata (Rambur) and Pycnogaster inermis (Rambur) from the Sierra Nevada mountain range, Granada, Spain. A key to the larvae of microtrombidiine genera with three dorsal scuta and a coxal setal formula of 2-1-1 is presented.     

Umashtanchaeviella plethotricha,a new genus and species of the family Tetracondylidae (Acari,Oribatida)

A new genus of oribatid mites of the family Tetracondylidae, Umashtanchaeviella gen. n., with type species Umashtanchaeviella plethotricha sp. n., is proposed and described from forest litter, the Bu Gia Map National Park, southern Vietnam. The new genus is distinguishable from other otocepheoid genera by the presence of notogastral plethotrichy.¹     

A new, enigmatic family for new genus and species of Polyneoptera from the Upper Permian of Russia

Alexarasniidaefam. n. and Alexarasnia rossicagen. et sp. n. are described from the Upper Permian of European Russia. Systematic position of this enigmatic family within the infraclass Polyneoptera is unclear.