title: The description of the female of Platycheirus troll Mutin (Diptera, Syrphidae) with a preliminary key to the Northern Palaearctic females of the Platycheirus clypeatus group.
abstract: The female of Platycheirus troll Mutin is described. A preliminary key to the females of the Northern Palaearctic species of the Platycheirus clypeatus group is presented. The possibility to identify the undescribed female of Platycheirus magadanensis Mutin is discussed.
authors.affiliation: Zoological Museum, Section of Biodiversity and Environmental Science, University of Turku, FI-20014 Turku, Finland.; Email: ahaarto@gmail.com.
authors.forename: Antti
authors.initials: A
authors.lastname: Haarto
mesh_terms: D000818:Animals; D004175:Diptera / Q000033:anatomy & histology* / Q000145:classification*; D005260:Female; D013045:Species Specificity