title: [Seasonal changes in the physiological age of Ixodes ricinus (Acari: Ixodidae) imagoes on the Stavropol Elevation].
abstract: Ixodes ricinus imagoes were caught using a flannel flag in the April to October of 2011 to 2013. There were two seasons when these stages were numerous, namely: spring and autumn. The physiological age of 506 hungry I. ricinus imagoes was determined from their outward signs: the shape of their rear body, the surface of the cuticle, and visibility of the internals through the latter. The change in the age composition suggests that an autumn imago cohort consists of specimens that emerged from nymphs in summer.
authors: B K
authors: BK
authors: Kotti
authors: E V
authors: EV
authors: Parshina
mesh_terms: D000818:Animals; D001899:Borrelia Infections / Q000453:epidemiology / Q000635:transmission*; D018884:Ixodes / Q000472:pathogenicity* / Q000502:physiology; D009758:Nymph / Q000472:pathogenicity; D012426:Russia / Q000453:epidemiology; D012621:Seasons