SCENTED HONEY POT. “Growing evidence suggests that floral volatiles can play an important role in specific pollinator attraction, thus mediating floral isolation. In European sexually deceptive orchids of the genus Ophrys, well known for their highly specific pollinator attraction, floral chemistry is known to be the primary mechanism for maintaining pollinator attraction and floral isolation.”
http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2010.03308.x/full