A taxonomic revision of the oribatid mite genusCamisia(Acari: Oribatida)

Abstract

Nine new species of Camisia are described from adult female material (C. dictyna sp. nov., C. grymae sp. nov., C. nortoni sp. nov., C. oregonae sp. nov., C. presbytis sp. nov., C. tryphosa sp. nov. and C. valeriae sp. nov.): C. labradorica Behan, 1978 was found to be a junior synonym of C. lapponica Trägårdh, 1910. C. lapponica Trägårdh sensu sellnick and Forsslund, 1955 is a different species from C. lapponica Trägårdh, and is described as new under the name Camisia solhoeyi sp. nov. Camisia borealis (Thorell) sensu Trägårdh (1904) was found to include two species; C. borealis (Thorell), for which a neotype is designated, and a species described as new under the name Camisia anomia sp. nov. The following species are redescribed or given supplementary descriptions: C. arcuata Hammer, 1961; C. australis Hammer, 1958; C. biurus (C. L. Koch, 1839); C. biverrucata (C. L. Koch, 1839); C. borealis (Thorell, 1871); C. foveolata Hammer, 1955; C. hamulifera Hammer, 1961; C. horrida (Hermann, 1804); C. invenusta (Michael, 1888); C. khencensis Hammer, 1961; C. segnis (Hermann, 1804) and C. spinifer (C. L. Koch, 1835). C. segnis nova Hammer, 1958 is re-described and given specific status. Five species-groups (‘hamulifera’, ‘segnis’, ‘spinifer’, ‘invenusta’ and ‘horrida’) are described, based on the morphology of the lamellar apophyses and setae, interlamellar setae, posterior notogastral setae and their apophyses and the arrangement of folds, plates, setae and apophyses of the caudal region. A key to recognizable species of Camisia of the world is provided.