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Tyumen, Russia

A new species of the genus Petalomium Cross, 1965 (Acari: Pygmephoroidea: Neopygmephoridae), E. kurosai sp. n. is described from ants (Hymenoptera: Formicidae) in Western Siberia, Russia. A closely related species, P. nataliae (Sevastianov, 1967) is recorded from Russia for the first time and redescribed. © Acarina 2014. Source

Norton R.A.,New York University | Ermilov S.G.,Tyumen State University
Zootaxa | Year: 2014

Oribatid mites (Acari: Oribatida) comprise a taxonomically and morphologically diverse suborder of about 10,000 described species, not including the hyporder Astigmata, with collectively a global distribution. They are primarily soil and litter inhabitants, feeding on fungi and decaying plant remains with various levels of specificity. Though all five active instars are important for reasons that relate to both ecology and systematics, most species are known only as adults. Our purpose was to gather the existing world literature on the active juvenile instars (i.e., excluding prelarva) of oribatid mites, to put classifications and nomenclature in a current context, and to identify the nature of the information in each paper. A selected historical overview identifies the contributions of 19th century authors C.L. Koch, H. Nicolet and A.D. Michael, and summarizes errors that resulted in various oribatid mite juveniles being classified in genera, families and even suborders that were different from those of their adult instars. The catalogue includes all species known to us for which juveniles have been described: 805 species in 310 genera, representing only about 8% of the known oribatid mite species and 30% of genera. These represent 118 families, about 70% of those known. At the superfamily level, representation is weakest among the diverse Oppioidea and Oribatuloidea, and those superfamilies with juveniles that are endophagous in organic substrates, such as Phthiracaroidea, Euphthiracaroidea and Carabodoidea. Representation is strongest in the middle-derivative hyporder Nothrina, in which adults and juveniles are more easily associated, and in brachypyline superfamilies that are mostly affiliated with aquatic, semiaquatic or intertidal environments, such as Limnozetoidea and Ameronothroidea. Juvenile instars remain unknown for 45 families of Brachypylina. Four new nomenclatural actions were proposed: Ojaithrus nymphoides Habeeb, 1982 is a junior synonym of Hydrozetes californiensis Habeeb, 1974, Cepheus feideri Suciu & Panu, 1972 is a junior synonym of Conoppia palmicincta (Michael, 1880). Two species are recombined: Ceratozetes kirgisicus (Shaldybina, 1970) comb. nov. (from Ceratozetella); Scheloribates (Hemileius) nicki (Denmark & Woodring, 1965) comb. nov. (from Hemileius). © 2014 Magnolia Press All rights reserved. Source

Two new species of oribatid mites of the family Carabodidae are described from leaf litter in forest of Cayo Santa Maria, Cuba. Carabodes paravenezolanus n. sp. is morphologically most similar to C. venezolanus Subías and Arillo, 2004, but it differs from the latter by the convex notogaster, bothridial setae with clear, flattened heads, notogaster without tubercles and epimere I with three pairs of setae. Gymnobodes minimus n. sp. is morphologically most similar to G. fraterculus (Balogh, 1963) and G. subnudus (Balogh, 1963), but it differs from both by the centro-dorsal part of notogaster with strong, well separated tubercles. An identification key to known species of Gymnobodes is given. The genus Gymnobodes is recorded for the first time in the Neotropical region. The genus Kalloia and the species Kalloia simpliseta Mahunka, 1985 are recorded for the first time in Cuban fauna. © Ermilov S.G. Acarologia is under free license. Source

Possible applications of the relation between the equation of dynamics and energy conservation are considered. It is shown that the method used in the paper by Vinokurov [Phys. Usp. 57 593 (2014); Usp. Fiz. Nauk 184 641 (2014)] should be re-examined to accurately understand the role of gyroscopic forces. © 2015 Uspekhi Fizicheskikh Nauk, Russian Academy of Sciences. Source

Three new species of the genus Stigmaeus Koch, 1836 (Acari: Stigmaeidae) are described from various habitats in Crimea: Stigmaeus kuznetsovi sp. nov. from nests of Microtus socialis (Rodentia: Cricetidae); S. mitrofanovi sp. nov. from galleries of Pityogenes bistridentatus (Coleoptera: Curculionidae) under the bark of Pinus pallasiana, and S. silvestris sp. nov. from rotten log of Pinus pallasiana. Stigmaeus corticeus Kuznetsov and Wainstein, 1977 and S. maraghehiensis Bagheri and Ueckermann, 2012 are recorded for the first time in Crimea. A key to species of the genus Stigmaeus of Crimea is provided. Copyright © 2014 Magnolia Press. Source

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