Systematic investigations on the oribatid mites of Kilickaya hill (Geyve-Sakarya)

Total 125 specimens consisting of litter, lichen, moss and soil were collected during field studies performed on Kılıçkaya hill in 2015, from April to November. As a result of the assessment, Epilohmannia cylindrica (Berlese, 1904), Cepheus caucasicus Sitnikova, 1975, Eremaeus translamellatus Hammer, 1952 and Oppia nitens C.L. Koch, 1836 species were determined. Of these, Cepheus caucasicus Sitnikova, 1975 and Eremaeus translamellatus Hammer, 1952 are new records for the Turkish fauna; Epilohmannia cylindrica (Berlese, 1904) and Oppia nitens C.L. Koch, 1836 have already been determined in Turkey. The various body structures belong to the identified species were photographed by scanning electron microscopes. Their definitions were reviewed on the basis of our samples. Various systematical problems were discussed by giving their habitats and distributions on the world.