Sampling map. Map of Central Europe showing the sampling locations for Myotis myotis/Spinturnix myoti (circles), and sampling regions for Myotis bechsteinii/Spinturnix bechsteini (triangles). For the latter pairing, the number of sampled colonies within a region is indicated within the triangle because all colonies within a region are located in close proximity to one another. All colony and region names correspond to the abbreviations given in Table 2. For each species, a picture of the typical roosting association is shown with an inset of the studied mite species (picture credits M. bechsteinii: GK, M. myotis: PC, mites: GK & JvS).