The non-groomed body areas on the dorsal and
ventral midline identified here for B. terrestris correspond to the areas found on other Bombus species in China and North America visiting different plants [32 — 35,38,41](S6 Table).
The safe sites of A. mellifera
identified in our study are similar to those on the dorsal and
ventral midline of honeybees pollinating different Pedicularis L. species (Orobanchaceae) in China [38](S6 Table), indicating the safe sites» relevance in a natural context.