Host specificity and multivariate diagnostics of cryptic species in predacious cheyletid mites of the genus Cheletophyes (Acari: Cheyletidae) associated with large carpenter bees
University of Michigan, Museum of Zoology, 1109 Geddes Ave., Ann Arbor, MI 48109–1079, USA; Zoological Institute, Russian Academy of Sciences, Universitetskaya embankment 1, St. Petersburg 199034, Russia