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Issue: Vol. 1847 No. 1: 11 Aug. 2008
Type: Article
Published: 2008-08-11
DOI: 10.11646/zootaxa.1847.1.3
Page range: 34–48
Abstract views: 38
PDF downloaded: 1

Zygoribatula colemani sp. nov (Acari, Oribatida, Oribatulidae) from Granite Outcrops in Georgia, USA, with a highly variable translamella

Instituto Nacional de Pesquisas da Amazônia (INPA), Caixa Postal 478, 69.011.970, Manaus, Amazonas, Brasil
State University of New York, College of Environmental Science & Forestry, 1 Forestry Drive, Syracuse, NY 13210
Georgia Museum of Natural History, Natural History Building, University of Georgia, Athens, Georgia USA 30602-1882
Acari Diamorpha Granite outcrops Oribatula Piedmont Plateau soil mites

Abstract

The oribatid mite Zygoribatula colemani sp. nov. (Oribatulidae) is described and illustrated based on adults collected from shallow soils in depression pits found in granitic outcrops of the Piedmont Plateau in Georgia (USA). By definition, members of Zygoribatula always possess a translamella on the prodorsum, the only feature distinguishing this genus from Oribatula. But Z. colemani shows a full range of variation, from having the translamella well developed to entirely absent; this brings the distinction of these genera into question and points out the need for a careful revision of generic concepts in Oribatulidae. Depending on the specimens examined, Z. colemani could be placed in either genus, but we tentatively include it in Zygoribatula, since in some specimens the translamella is complete and well delineated. A tentative diagnostic key to differentiate the species of Zygoribatula previously reported in the USA is included.

References

  1. Berlese, A. (1916) Centuria terza di Acari nuovi. Redia, 12, 283–338.

    Behan-Pelettier, V.M. & Bissett, B. (1992) Biodiversity of Nearctic soil arthropods. Canadian Biodiversity, 2, 5–14.

    Burbanck, M.P. & Platt, R.B. (1964) Granite outcrop communities of the piedmont plateau in Georgia. Ecology, 45, 292–306.

    Coleman, D.C. & Whitmann, W.B. (2005) Linking species richness, biodiversity and ecosystem function in soil systems. Pedobiologia, 49, 479–497.

    Keever, C. (1957) Establishment of Grimmia laevigata on bare granite. Ecology, 38, 422–429.

    Ellwood, B.B. (1982) Paleomagnetic evidence for the continuity and independent movement of a distinct major crustal block in the Southern Appalachains. Journal Geophysics Research, 87, 5339–5350.

    Gilyarov, M.S. & Krivolutskij, D.A. (1975) Opredelitel' obitajuschtschich w potschwe kleschtschej - Sarcoptiformes. Key to soil-inhabiting mites Sarcoptiformes. Nauka/Interperiodica Publishing, Moscow, 492 pp.

    Iordansky, S.N. (1991) Taxonomic revision of the oribatid mite Oribatula (Acariformes, Cryptostigmata, Oribatulidae) of the USSR Fauna. Zoological Zeitschrift, 70(8), 77–89.

    Mahunka, S. (1978) Neue und interessante Milben aus dem Genfer Museum. XXXI. A compendium of the Oribatid (Acari) fauna of Mauritius, Reunion and the Seychelles Islands II. Revue Suisse de Zoologie, 85(2), 307–340.

    Marshall, V.G., Reeves, R.M. & Norton, R.A. (1987) Catalogue of the Oribatida (Acari) of continental United States and Canada. Memoirs of the Entomological Society of Canada, 139, 37–42.

    Norton, R.A. & Kethley, J.B. (1989) Berlese's North American oribatid mites: historical notes, recombinations, synonymies and type designations. Redia, 62(2), 421–499.

    Oudemans, A.C. (1900) New list of Dutch Acari, 1st. part. Tijdschrift voor Entomology, 43, 150–171.

    Schatz, H. (2002) Die Oribatidenliteratur und die beschriebenen Oribatidenarten (1758-2001) – Eine Analyse. Abhandlungen und Berichte des Naturkunde Museums Görlitz, 74(1), 37–45.

    Schatz, H. (2005) Diversity and global distribution of oribatid mites evaluation of the present state of knowledge. In: Weigmann, G., Alberti, G., Wohltmann, A. & Ragusa, S. (Eds.), Acarine Biodiversity in the Natural and Human Sphere. Proceedings of the V Symposium of the European Association of Acarologists (Berlin 2004). Phytophaga (Palermo), 14 (2004), 485–500.

    Sharitz, R.R. & McCormick, J.F. (1973) Population dynamics of two competing annual species. Ecology 54, 723–740.

    Subías, L.S. (2004) Listado Sistemático, Sinonímico y Biogeográfico de los Ácaros Oribátidos (Acariformes del Mundo (Excepto fósiles). Graellsia, 60 (número extraordinário), 3–305. Electronic version (Subias 2008) available from http://www.ucm.es/info/zoo/Artropodos/Catalogo.pdf (accessed 3 July 2008).

    Travè, J. (1961) Contribution a l'étude des Oribatulidae (Oribates, Acariens). Vie et Milieu, 12, 315–351.

    Travè, J. & Vachon, M. (1975) François Grandjean, 1882 – 1975 (Notice Biographique et Bibliographique). Acarologia, 17, 1–19.

    Weigmann G. (2006) Hornmilben (Oribatida). Die Tierwelt Deutschlands, 76. Teil. Goecke & Evers, Keltern, 520 pp.

    Willmann, C. (1936) Zoologische Ergebnisse einer Reise nach Bonaire, Curaçao und Aruba im Jahre 1930. No. 20. Oribatiden von Bonaire und Curaçao. Zoologische Jahrbuecher Systematik, 67(5-6), 429–442.

    Wunderle, I., Beck, L. & Woas, S. (1990) Ein Beitrag zur Taxonomie und Ökologie der Oribatulidae und Scheloribatidae (Acari, Oribatei) in Südwestdeutschland. Andrias, Karlsruhe, 7, 15–60.