| abstract | A new species of nasal mite, Ptilonyssus mironovi n. sp. is described from the Azure Titmice Parus caeruleus L. (Passeriformes: Paridae) from the Leningrad province, Russia. The new species and four previously known species, P. pinicola Knee 2008, P. plesiotypicus Knee 2008, P. pari Fain and Hyland 1963, and P. coccothraustis, Fain and Bafort 1963, are arranged here into a "pari" species complex with the genus Ptilonyssus. |