Perhaps not surprisingly, the insects were most attracted to odors containing aromatic chemicals, which are present in plants that are common nectar sources. (sciencemag.org)
Though not the showiest of blooms, the plain, greenish - white flowers serve as an important nectar source for butterfly populations. (parksconservancy.org)
Their waggle dance, for example, is an elaborate way of telling each other the direction towards the best nectar sources, in relation to the Sun. (newscientist.com)