Hirstionyssus davydovae Nikol’sky, 1984: 26.
Type locality: Russia, Tyumen Region, Yamal-Nenets Autonomous District, in the vicinities of Salekhard City, in forest-tundra.
Type series: SZM.
Type host: Clethrionomys rutilus (Pallas, 1774), the northern red-backed vole.
Host range: Three species of mammals have been indicated as hosts of H. davydovae: Clethrionomys rutilus, Microtus oeconomus Pallas, 1776, and Sorex tundrensis Merriam, 1900 (Nikol’sky 1984).
Distribution: This poorly studied mite is known only from several locations situated in the northern part of Western Siberia (Nikol’sky 1984).