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The oribatid mite genus Ceratorchestes (Acari, Oribatida, Peloppiidae)

Ermilov, S.G. and Kalúz, S.

2012 - Volume: 52 Issue: 2 pages: 165-172

DOI: 10.1051/acarologia/20122046
Date received: 2012-02-08, Date accepted: 2012-03-24, Date published: 2012-06-22
(CC BY-NC-ND 2.0) © 2012 Ermilov, S.G. and Kalúz, S.

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Keywords
oribatid mites; Peloppiidae; Ceratorchestes; new subgenus; new species; key; Ecuador
Abstract
The neotropical oribatid mite genus Ceratorchestes comprises four species. A new subgenus, Ceratorchestes (Paraceratorchestes) n. subgen., is proposed. It is distinguishable from the nominate subgenus, Ceratorchestes (Ceratorchestes), by the length of the epimeres III + IV and the localization of setae on epimere IV. A new species, Ceratorchestes (Paraceratorchestes) variabilis n. sp., is described and illustrated. The morphology of the gnathosoma and legs is presentedand represents the first such data for a member of this genus. An identification key to all known species of Ceratorchestes is given.

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Photos: Varroa destructor (Varroidae) on a honey bee. Low temperature -Scanning electron microscopy photograph. Material collected and fixed for LT-SEM: J. Pettis, USDA-ARS-Bee Lab. and R. Ochoa, USDA-ARS-SEL; LT-SEM photo: E. Erbe and C. Pooley, USDA-ARS-CEMU © USDA; Petrobia harti (Tetranychidae) © INRA - Alain Migeon; Dermanyssus gallinae (Dermanysssidae) © Ecole Nationale Vétérinaire de Lyon - Lise Roy; Adult Ixodes sp. (Ixodidae) engorging on an Atlantic puffin Fratercula arctica © Andy Darrington; Panonychus ulmi (Tetranychidae): hatching of a winter egg © Université de Lausanne - Centre de microscopie électronique - Cazelles

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