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MYCOBATES (ACARI: ORIBATIDA: MYCOBATIDAE) OF AMERICA NORTH OF MEXICO

Published online by Cambridge University Press:  31 May 2012

Valerie M. Behan-Pelletier
Valerie M. Behan-Pelletier
Affiliation:
Biological Resources Division, Centre for Land and Biological Resources Research, Agriculture Canada, Ottawa, Ontario, Canada K1A 0C6
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Abstract

Morphology, distribution, and habitat data are presented for the known species of the oribatid mite genus Mycobates of America, north of Mexico. A revised generic diagnosis is given, and 11 new species are proposed and described on the basis of adults: M. altus, M. azaleos, M. beringianus, M. brevilamellatus, M. dryas, M. exigualis, M. hammerae, M. hylaeus, M. occidentalis, M. perates, and M. yukonensis. Three species proposed by Marie Hammer are redescribed, M. conitus, M. incurvatus, and M. punctatus, and a lectotype is designated for M. punctatus. Mycobates consimilis Hammer is considered a junior subjective synonym of M. sarekensis Trägårdh. Distribution maps are presented for these species and a diagnostic key is given to adults of species of Mycobates recorded from America, north of Mexico. Mycobates is species rich in dry arctic, subarctic, and alpine microhabitats of the Nearctic, Palearctic, and Neotropical regions. At temperate latitudes species often are arboreal, associated with moss and lichens on tree trunks.

Résumé

On trouvera ici une description de la morphologie et de la répartition des espèces américaines actuelles du genre Mycobates (Oribatida), au nord du Mexique, ainsi que des données sur leur habitat. La diagnose du genre a été révisée et 11 espèces sont proposées et décrites après examen des adultes : M altus, M. azaleos, M. beringianus, M. brevilamellatus, M. dryas, M. exigualis, M. hammerae, M. hylaeus, M. occidentalis, M. perates et M. yukonensis. Trois espèces proposées par Marie Hammer sont décrites de nouveau, M. conitus, M. incurvatus et M. punctatus et un lectotype a été choisi pour représenter M. punctatus. Mycobates consimilis Hammer est considéré comme un synonyme subjectif récent de M. sarekensis Trägårdh. Des cartes de répartition de ces espèces sont présentées et une clé permettra d’identifier les adultes de Mycobates d’Amérique au nord du Mexique. Mycobates est un genre très diversifié dans les microhabitats arctiques, subarctiques et alpins secs des régions néarctique, paléarctique et néotropicale. Aux latitudes tempérées, les espèces sont souvent arboricoles et associées aux mousses et aux lichens qui poussent sur les troncs.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 126 , Issue 6 , December 1994 , pp. 1301 - 1361
Copyright
Copyright © Entomological Society of Canada 1994

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